Migrate REUSE metadata from deprecated .reuse/dep5 to REUSE.toml

reuse==6.2.0 (pinned in cmake/requirements/requirements-reuse.txt) warns "'.reuse/dep5' is deprecated. You are recommended to instead use REUSE.toml. Use `reuse convert-dep5` to convert." on every ci_reuse_compliance run. A later reuse release that drops DEP5 support would break that CI job outright. Generate REUSE.toml from the 9 Files: stanzas with `reuse convert-dep5` and remove .reuse/dep5. `reuse lint` still reports full compliance with spec 3.3 (1268/1268 files with copyright and license information, unchanged), and `reuse spdx` produces the same per-file copyright and license entries as before the conversion. Update the three places that referenced the old file: FILES.md now documents REUSE.toml with a spec 3.3 link, README.md's REUSE section names REUSE.toml, and the comment in gen_hedley_undef_check.cmake now refers to REUSE.toml's blanket path = "**" rule. Overlaps #4663, which adds an entry to .reuse/dep5; that PR will need to move its entry into REUSE.toml when rebased on this. #5716 item 4 Signed-off-by: Niels Lohmann <mail@nlohmann.me>
Document SwiftPM's #include <json.hpp> form and add CI coverage
2026-10-01 04:00:31 +00:00 · 2026-09-30 18:13:51 +02:00 · 2026-09-30 18:10:49 +02:00 · 2026-09-30 17:59:47 +02:00 · 2026-09-30 09:44:53 +02:00 · 2026-09-30 09:40:26 +02:00
136 changed files with 3130 additions and 8575 deletions
@@ -0,0 +1,17 @@
+arm_container:
+  image: gcc:latest
+
+check_task:
+  check_script:
+  # the gcc image ships an outdated CMake, so fetch a recent prebuilt binary
+  # instead of compiling CMake from source
+  - wget -q https://github.com/Kitware/CMake/releases/download/v4.3.4/cmake-4.3.4-linux-aarch64.tar.gz
+  - tar xfz cmake-4.3.4-linux-aarch64.tar.gz
+  - export PATH="$(pwd)/cmake-4.3.4-linux-aarch64/bin:$PATH"
+  - cmake --version
+  - mkdir build
+  - cd build
+  - cmake .. -DJSON_FastTests=ON
+  - make -j4
+  - cd tests
+  - ctest -j4
@@ -24,10 +24,6 @@ updates:
      interval: daily
    cooldown:
      default-days: 7
-    ignore:
-      # astyle is deliberately pinned (see tools/astyle/requirements.txt): newer versions
-      # reformat the code, and the pinned version defines the formatting CI enforces
-      - dependency-name: astyle

  - package-ecosystem: pip
    directory: /tools/generate_natvis
@@ -30,6 +30,14 @@ environment:
      CMAKE_OPTIONS: ""
      GENERATOR: Visual Studio 14 2015

+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
+      configuration: Release
+      platform: x86
+      name: with_win_header
+      CXX_FLAGS: "/W4 /WX"
+      CMAKE_OPTIONS: ""
+      GENERATOR: Visual Studio 14 2015
+
    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
      configuration: Release
      platform: x86
@@ -66,6 +74,9 @@ install:
  - if "%platform%"=="x86"    set GENERATOR_PLATFORM=Win32

 before_build:
+  # for with_win_header build, inject the inclusion of Windows.h to the single-header library
+  - ps: if ($env:name -Eq "with_win_header") { $header_path = "single_include\nlohmann\json.hpp" }
+  - ps: if ($env:name -Eq "with_win_header") { "#include <Windows.h>`n" + (Get-Content $header_path | Out-String) | Set-Content $header_path }
  - cmake . -G "%GENERATOR%" -A "%GENERATOR_PLATFORM%" -DCMAKE_CXX_FLAGS="%CXX_FLAGS%" -DCMAKE_IGNORE_PATH="C:/Program Files/Git/usr/bin" -DJSON_BuildTests=On "%CMAKE_OPTIONS%"

 build_script:
@@ -35,7 +35,6 @@ jobs:
      MAIN_DIR: ${{ github.workspace }}/main
      INCLUDE_DIR: ${{ github.workspace }}/main/single_include/nlohmann
      TOOL_DIR: ${{ github.workspace }}/tools/tools/amalgamate
-      NATVIS_TOOL_DIR: ${{ github.workspace }}/tools/tools/generate_natvis

    steps:
      - name: Harden Runner
@@ -62,55 +61,12 @@ jobs:
          python3 -mvenv venv
          venv/bin/pip3 install -r $MAIN_DIR/tools/astyle/requirements.txt

-      - name: Install generate_natvis dependencies
-        run: pip3 install -r $NATVIS_TOOL_DIR/requirements.txt
-
-      - name: Regenerate the tools/macro_builder tables in macro_scope.hpp
-        run: |
-          cd $MAIN_DIR
-
-          # Built from this PR's own tools/macro_builder/main.cpp, not a
-          # develop checkout: unlike amalgamate.py and generate_natvis.py,
-          # this tool has no other source of truth to check against (its
-          # own README documents that it must reproduce macro_scope.hpp
-          # byte for byte), so there is nothing to gain from checking out a
-          # separate copy, and doing so would make this step fail on a PR
-          # that adds support for a new dispatch table until that PR itself
-          # merges to develop, the same way generate_natvis.py's --version
-          # requirement briefly did.
-          TMPDIR=$(mktemp -d ./macro_builder_check.XXXXXX)
-          c++ -std=c++11 tools/macro_builder/main.cpp -o "$TMPDIR/macro_builder"
-          "$TMPDIR/macro_builder" > "$TMPDIR/paste.hpp"
-          "$TMPDIR/macro_builder" type_body > "$TMPDIR/type_body.hpp"
-
-          # Splice the (still unindented) generated blocks back into
-          # macro_scope.hpp; the astyle pass below indents their
-          # continuation lines the same way it does for the rest of
-          # include/, so a correctly regenerated file comes out unchanged.
-          awk -v newfile="$TMPDIR/paste.hpp" '
-            BEGIN { while ((getline line < newfile) > 0) { new = new line "\n" } }
-            /^#define NLOHMANN_JSON_EXPAND\( x \) x$/ { printf "%s", new; skip=1 }
-            skip && /^#define NLOHMANN_JSON_DOUBLE_PASTE63\(/ { skip=0; next }
-            skip { next }
-            { print }
-          ' include/nlohmann/detail/macro_scope.hpp > "$TMPDIR/macro_scope_1.hpp"
-          awk -v newfile="$TMPDIR/type_body.hpp" '
-            BEGIN { while ((getline line < newfile) > 0) { new = new line "\n" } }
-            /^#define NLOHMANN_JSON_TYPE_BODY\(Prefix, \.\.\.\)/ { printf "%s", new; skip=1 }
-            skip && /^[[:space:]]*NLOHMANN_JSON_TYPE_BODY_SENTINEL\)\)$/ { skip=0; next }
-            skip { next }
-            { print }
-          ' "$TMPDIR/macro_scope_1.hpp" > "$TMPDIR/macro_scope_2.hpp"
-          mv "$TMPDIR/macro_scope_2.hpp" include/nlohmann/detail/macro_scope.hpp
-          rm -rf "$TMPDIR"
-
      - name: Regenerate amalgamation, formatting, and BUILD.bazel
        run: |
          cd $MAIN_DIR

          python3 $TOOL_DIR/amalgamate.py -c $TOOL_DIR/config_json.json -s .
          python3 $TOOL_DIR/amalgamate.py -c $TOOL_DIR/config_json_fwd.json -s .
-          cp include/nlohmann/json_literals.hpp $INCLUDE_DIR/json_literals.hpp

          # the header list of the Bazel "json" target must match the files in include/
          cmake -P cmake/scripts/gen_bazel_build_file.cmake
@@ -131,19 +87,6 @@ jobs:
          ${{ github.workspace }}/venv/bin/astyle --project=tools/astyle/.astylerc --suffix=none --quiet \
            $(find $SOURCE_DIRS -type f \( -name '*.hpp' -o -name '*.cpp' -o -name '*.cu' \) -not -path 'tests/thirdparty/*' -not -path 'tests/abi/include/nlohmann/*' | sort)

-      - name: Regenerate nlohmann_json.natvis
-        run: |
-          cd $MAIN_DIR
-          # Pass --version explicitly so this step also works with the tool
-          # copy from develop before this repository's own generate_natvis.py
-          # learns to derive the version itself: the older script requires
-          # --version, and the newer one accepts it as an explicit override.
-          ABI_MACROS=include/nlohmann/detail/abi_macros.hpp
-          VERSION_MAJOR=$(grep -m1 'define NLOHMANN_JSON_VERSION_MAJOR' $ABI_MACROS | grep -o '[0-9]\+')
-          VERSION_MINOR=$(grep -m1 'define NLOHMANN_JSON_VERSION_MINOR' $ABI_MACROS | grep -o '[0-9]\+')
-          VERSION_PATCH=$(grep -m1 'define NLOHMANN_JSON_VERSION_PATCH' $ABI_MACROS | grep -o '[0-9]\+')
-          python3 $NATVIS_TOOL_DIR/generate_natvis.py --version "$VERSION_MAJOR.$VERSION_MINOR.$VERSION_PATCH" $MAIN_DIR
-
      - name: Build patch and check for differences
        id: diff
        run: |
@@ -71,3 +71,38 @@ jobs:
        run: cmake --build build --parallel 10
      - name: Test
        run: cd build ; ctest -j 10 --output-on-failure
+
+  swiftpm:
+    runs-on: macos-15
+    steps:
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
+      - name: Check that Package.swift resolves without a deprecation warning
+        run: swift package dump-package
+      - name: Build the SwiftPM documentation example against this checkout
+        run: |
+          mkdir -p /tmp/json-swiftpm-consumer/Sources/MyLibrary
+          cp docs/mkdocs/docs/integration/swift/example.cpp /tmp/json-swiftpm-consumer/Sources/MyLibrary/example.cpp
+          cat > /tmp/json-swiftpm-consumer/Package.swift << EOF
+          // swift-tools-version: 5.9
+          import PackageDescription
+
+          let package = Package(
+              name: "MyPackage",
+              dependencies: [
+                  .package(path: "${{ github.workspace }}")
+              ],
+              targets: [
+                  .target(
+                      name: "MyLibrary",
+                      dependencies: [
+                          .product(name: "json", package: "json")
+                      ],
+                      publicHeadersPath: "."
+                  )
+              ]
+          )
+          EOF
+          cd /tmp/json-swiftpm-consumer
+          swift build
@@ -7,16 +7,6 @@ on:
      - develop
    paths:
      - docs/mkdocs/**
-      # the site also embeds these files via pymdownx.snippets
-      # (mkdocs.yml sets restrict_base_path: false for this)
-      - .clang-tidy
-      - .github/CODE_OF_CONDUCT.md
-      - .github/CONTRIBUTING.md
-      - .github/SECURITY.md
-      - cmake/clang_flags.cmake
-      - cmake/gcc_flags.cmake
-      - tests/fmt_formatter/project/main.cpp
-      - tools/astyle/.astylerc
  workflow_dispatch:

 # we don't want to have concurrent jobs, and we don't want to cancel running jobs to avoid broken publications
@@ -33,7 +23,7 @@ jobs:
      contents: write

    if: github.repository == 'nlohmann/json'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
    steps:
      - name: Harden Runner
        uses: step-security/harden-runner@e14015d583714f6e62063499dc959a02595150a1 # v2.21.1
@@ -41,8 +31,6 @@ jobs:
          egress-policy: audit

      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-        with:
-          persist-credentials: false

      - name: Install virtual environment
        run: make install_venv -C docs/mkdocs
@@ -52,13 +52,6 @@ jobs:
        run: cmake -S . -B build -DJSON_CI=On
      - name: Build
        run: cmake --build build --target ci_infer
-      - name: Archive Infer report
-        if: always()
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
-        with:
-          name: infer-report
-          path: ${{ github.workspace }}/build/build_infer/infer-out/report.txt
-          if-no-files-found: ignore

  ci_static_analysis_ubuntu:
    runs-on: ubuntu-latest
@@ -104,13 +97,13 @@ jobs:

  ci_cmake_options:
    runs-on: ubuntu-latest
-    container: ubuntu:24.04
+    container: ubuntu:focal
    strategy:
      matrix:
-        target: [ci_cmake_flags, ci_test_diagnostics, ci_test_diagnostic_positions, ci_test_noexceptions, ci_test_noimplicitconversions, ci_test_legacycomparison, ci_test_noglobaludls, ci_test_disableenumserialization, ci_test_disabletuplereferenceconversion, ci_test_skiplibraryversioncheck, ci_test_simdutf, ci_test_strict_nul_handling, ci_test_no_thread_local]
+        target: [ci_cmake_flags, ci_test_diagnostics, ci_test_diagnostic_positions, ci_test_noexceptions, ci_test_noimplicitconversions, ci_test_legacycomparison, ci_test_noglobaludls, ci_test_disableenumserialization, ci_test_skiplibraryversioncheck, ci_test_simdutf, ci_test_strict_nul_handling, ci_test_no_thread_local]
    steps:
      - name: Install build-essential
-        run: apt-get update ; apt-get install -y build-essential unzip wget git
+        run: apt-get update ; apt-get install -y build-essential unzip wget git libssl-dev
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
@@ -353,8 +346,6 @@ jobs:
    container: intel/oneapi-hpckit:latest
    steps:
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-        with:
-          persist-credentials: false
      - name: Get latest CMake and ninja
        uses: lukka/get-cmake@fffaaafeea488556c2c12dad60690008bc1caacb # v4.4.2
      - name: Run CMake
@@ -367,8 +358,6 @@ jobs:
    container: nvcr.io/nvidia/nvhpc:25.5-devel-cuda12.9-ubuntu22.04
    steps:
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-        with:
-          persist-credentials: false
      - name: Get latest CMake and ninja
        uses: lukka/get-cmake@fffaaafeea488556c2c12dad60690008bc1caacb # v4.4.2
      - name: Run CMake
@@ -414,21 +403,3 @@ jobs:
        run: cmake -S . -B build -DJSON_CI=On
      - name: Build
        run: cmake --build build --target ${{ matrix.target }}
-
-  # Native Linux ARM64 runner with the latest GCC. The ubuntu-24.04-arm label is
-  # only available for public repositories.
-  ci_test_arm64:
-    runs-on: ubuntu-24.04-arm
-    container: gcc:latest
-    steps:
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-        with:
-          persist-credentials: false
-      - name: Get latest CMake and ninja
-        uses: lukka/get-cmake@fffaaafeea488556c2c12dad60690008bc1caacb # v4.4.2
-      - name: Check that the job runs natively on arm64
-        run: uname -m && test "$(uname -m)" = aarch64
-      - name: Run CMake
-        run: cmake -S . -B build -DJSON_CI=On
-      - name: Build
-        run: cmake --build build --target ci_test_compiler_default
@@ -87,8 +87,6 @@ jobs:

    steps:
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-        with:
-          persist-credentials: false
      - name: Get latest CMake and ninja
        uses: lukka/get-cmake@fffaaafeea488556c2c12dad60690008bc1caacb # v4.4.2
      - name: Set extra CXX_FLAGS for latest std_version
@@ -125,8 +123,6 @@ jobs:

    steps:
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-        with:
-          persist-credentials: false
      - name: Run CMake (Release)
        run: cmake -S . -B build -G "Visual Studio 18 2026" -A ARM64 -DJSON_BuildTests=On -DCMAKE_CXX_FLAGS="/W4 /WX"
        if: matrix.build_type == 'Release'
@@ -1,12 +0,0 @@
-{
-  "_comment": "Used by the ci_infer CMake target (#5715 item 4b). fail-on-issue makes CI fail on Infer findings; disable-issue-type is a type-level baseline for the ~174 pre-existing findings (all PULSE_UNNECESSARY_COPY*/PULSE_RESOURCE_LEAK/PULSE_CONST_REFABLE, mostly in test code) triaged in run https://github.com/nlohmann/json/actions/runs/35829411620 on commit 1054b2097, so CI fails only on a NEW issue type. Remove an entry here once its findings have been fixed or explicitly accepted.",
-  "fail-on-issue": true,
-  "disable-issue-type": [
-    "PULSE_UNNECESSARY_COPY_ASSIGNMENT",
-    "PULSE_UNNECESSARY_COPY",
-    "PULSE_UNNECESSARY_COPY_INTERMEDIATE",
-    "PULSE_UNNECESSARY_COPY_OPTIONAL",
-    "PULSE_RESOURCE_LEAK",
-    "PULSE_CONST_REFABLE"
-  ]
-}
@@ -1,40 +0,0 @@
-Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
-Upstream-Name: json
-Upstream-Contact: Niels Lohmann <mail@nlohmann.me>
-Source: https://github.com/nlohmann/json
-
-Files: *
-Copyright: 2013-2026 Niels Lohmann <https://nlohmann.me>
-License: MIT
-
-Files: include/nlohmann/thirdparty/hedley.hpp
-Copyright: 2016-2021 Evan Nemerson <evan@nemerson.com>
-License: CC0
-
-Files: include/nlohmann/detail/meta/cpp_future.hpp
-Copyright: 2013-2026 Niels Lohmann <https://nlohmann.me> and 2018 The Abseil Authors
-License: MIT AND Apache-2.0
-
-Files: tests/thirdparty/doctest/*
-Copyright: 2016-2023 Viktor Kirilov
-License: MIT
-
-Files: tests/thirdparty/fifo_map/*
-Copyright: 2015-2017 Niels Lohmann
-License: MIT
-
-Files: tests/thirdparty/Fuzzer/*
-Copyright: 2003-2022 LLVM Project.
-License: Apache-2.0
-
-Files: tests/thirdparty/imapdl/*
-Copyright: 2017 Georg Sauthoff <mail@gms.tf>
-License: GPL-3.0-only
-
-Files: tools/amalgamate/*
-Copyright: 2012 Erik Edlund <erik.edlund@32767.se>
-License: BSD-3-Clause
-
-Files: tools/gdb_pretty_printer/*
-Copyright: 2020 Hannes Domani <https://github.com/ssbssa>
-License: MIT
@@ -21,7 +21,6 @@ cc_library(
        "include/nlohmann/adl_serializer.hpp",
        "include/nlohmann/byte_container_with_subtype.hpp",
        "include/nlohmann/detail/abi_macros.hpp",
-        "include/nlohmann/detail/bit_ops.hpp",
        "include/nlohmann/detail/conversions/from_json.hpp",
        "include/nlohmann/detail/conversions/to_chars.hpp",
        "include/nlohmann/detail/conversions/to_json.hpp",
@@ -34,7 +33,6 @@ cc_library(
        "include/nlohmann/detail/input/number_parse.hpp",
        "include/nlohmann/detail/input/parser.hpp",
        "include/nlohmann/detail/input/position_t.hpp",
-        "include/nlohmann/detail/input/pow5_table.hpp",
        "include/nlohmann/detail/input/string_scan.hpp",
        "include/nlohmann/detail/iterators/internal_iterator.hpp",
        "include/nlohmann/detail/iterators/iter_impl.hpp",
@@ -67,7 +65,6 @@ cc_library(
        "include/nlohmann/detail/value_t.hpp",
        "include/nlohmann/json.hpp",
        "include/nlohmann/json_fwd.hpp",
-        "include/nlohmann/json_literals.hpp",
        "include/nlohmann/ordered_map.hpp",
        "include/nlohmann/thirdparty/hedley/hedley.hpp",
        "include/nlohmann/thirdparty/hedley/hedley_undef.hpp",
@@ -80,6 +77,7 @@ cc_library(
    name = "singleheader-json",
    hdrs = [
        "single_include/nlohmann/json.hpp",
+        "single_include/nlohmann/json_fwd.hpp",
    ],
    includes = ["single_include"],
    visibility = ["//visibility:public"],
@@ -10,5 +10,5 @@ title: "JSON for Modern C++"
 version: 3.12.0
 date-released: 2025-04-07
 license: MIT
-repository-code: "https://github.com/nlohmann"
+repository-code: "https://github.com/nlohmann/json"
 url: https://json.nlohmann.me
@@ -42,8 +42,11 @@ endif()
 ## OPTIONS
 ##

+# Build the tests by default only for the main project and only if the tests
+# directory exists (the release archive json.tar.xz does not contain it).
 # VERSION_GREATER_EQUAL is not available in older CMake (< 3.7)
-if(${MAIN_PROJECT} AND (${CMAKE_VERSION} VERSION_EQUAL 3.13 OR ${CMAKE_VERSION} VERSION_GREATER 3.13))
+if(${MAIN_PROJECT} AND (${CMAKE_VERSION} VERSION_EQUAL 3.13 OR ${CMAKE_VERSION} VERSION_GREATER 3.13)
+   AND EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/tests/CMakeLists.txt")
    set(JSON_BuildTests_INIT ON)
 else()
    set(JSON_BuildTests_INIT OFF)
@@ -55,7 +58,6 @@ option(JSON_Diagnostic_Positions           "Enable diagnostic positions." OFF)
 option(JSON_GlobalUDLs                     "Place user-defined string literals in the global namespace." ON)
 option(JSON_ImplicitConversions            "Enable implicit conversions." ON)
 option(JSON_DisableEnumSerialization       "Disable default integer enum serialization." OFF)
-option(JSON_DisableTupleReferenceConversion "Disable conversion from a one-element tuple of a JSON reference." OFF)
 option(JSON_LegacyDiscardedValueComparison "Enable legacy discarded value comparison." OFF)
 option(JSON_Install                        "Install CMake targets during install step." ${MAIN_PROJECT})
 option(JSON_MultipleHeaders                "Use non-amalgamated version of the library." ON)
@@ -102,10 +104,6 @@ if (JSON_DisableEnumSerialization)
    message(STATUS "Enum integer serialization is disabled (JSON_DISABLE_ENUM_SERIALIZATION=1)")
 endif()

-if (JSON_DisableTupleReferenceConversion)
-    message(STATUS "Tuple reference conversion is disabled (JSON_DISABLE_TUPLE_REFERENCE_CONVERSION=1)")
-endif()
-
 if (JSON_LegacyDiscardedValueComparison)
    message(STATUS "Legacy discarded value comparison enabled (JSON_USE_LEGACY_DISCARDED_VALUE_COMPARISON=1)")
 endif()
@@ -148,7 +146,6 @@ target_compile_definitions(
    $<$<NOT:$<BOOL:${JSON_GlobalUDLs}>>:JSON_USE_GLOBAL_UDLS=0>
    $<$<NOT:$<BOOL:${JSON_ImplicitConversions}>>:JSON_USE_IMPLICIT_CONVERSIONS=0>
    $<$<BOOL:${JSON_DisableEnumSerialization}>:JSON_DISABLE_ENUM_SERIALIZATION=1>
-    $<$<BOOL:${JSON_DisableTupleReferenceConversion}>:JSON_DISABLE_TUPLE_REFERENCE_CONVERSION=1>
    $<$<BOOL:${JSON_Diagnostics}>:JSON_DIAGNOSTICS=1>
    $<$<BOOL:${JSON_Diagnostic_Positions}>:JSON_DIAGNOSTIC_POSITIONS=1>
    $<$<BOOL:${JSON_LegacyDiscardedValueComparison}>:JSON_USE_LEGACY_DISCARDED_VALUE_COMPARISON=1>
@@ -33,6 +33,17 @@ Further documentation:
 > [!IMPORTANT]
 > The folder `.github/workflows` is predetermined by GitHub.

+### `.cirrus.yml`
+
+Configuration file for the pipeline at [Cirrus CI](https://cirrus-ci.com/github/nlohmann/json).
+
+Further documentation:
+
+- [Writing tasks](https://cirrus-ci.org/guide/writing-tasks/)
+
+> [!IMPORTANT]
+> The filename `.cirrus.yml` and position (root of the repository) are predetermined by Cirrus CI.
+
 ### `.github/external_ci/appveyor.yml`

 Configuration for the pipelines at [AppVeyor](https://ci.appveyor.com/project/nlohmann/json).
@@ -196,19 +207,19 @@ Further documentation:

 ## REUSE

-### `.reuse/dep5`
+### `REUSE.toml`

 The file defines the licenses of certain third-party components in the repository. The root `Makefile` contains a target `reuse` that checks for compliance.

 Further documentation:

- [DEP5](https://reuse.software/spec-3.2/#dep5-deprecated)
+- [REUSE.toml](https://reuse.software/spec-3.3/#reusetoml)
 - [reuse command-line tool](https://pypi.org/project/reuse/)
 - [documentation of linting](https://reuse.readthedocs.io/en/stable/man/reuse-lint.html)
 - [REUSE](http://reuse.software)

 > [!IMPORTANT]
-> The filename `.reuse/dep5` is predetermined by REUSE. Alternatively, a `REUSE.toml` file can be used.
+> The filename `REUSE.toml` is predetermined by REUSE. Alternatively, a `.reuse/dep5` file (deprecated) can be used.

 ### `.reuse/templates`

@@ -1,4 +1,4 @@
-.PHONY: pretty clean ChangeLog.md release update_hedley update_hedley_undef BUILD.bazel natvis macro_builder_check
+.PHONY: pretty clean ChangeLog.md release update_hedley update_hedley_undef BUILD.bazel

 ##########################################################################
 # configuration
@@ -7,6 +7,9 @@
 # find GNU sed to use `-i` parameter
 SED:=$(shell command -v gsed || which sed)

+# find GNU tar to use `--sort` and `--pax-option` parameters
+TAR:=$(shell command -v gtar || which tar)
+

 ##########################################################################
 # source files
@@ -21,11 +24,6 @@ TESTS_SRCS=$(shell find tests -type f \( -name '*.hpp' -o -name '*.cpp' -o -name
 # the single headers (amalgamated from the source files)
 AMALGAMATED_FILE=single_include/nlohmann/json.hpp
 AMALGAMATED_FWD_FILE=single_include/nlohmann/json_fwd.hpp
-# json_literals.hpp only includes <nlohmann/json.hpp>, so it is copied verbatim
-AMALGAMATED_LITERALS_FILE=single_include/nlohmann/json_literals.hpp
-
-# the header with the argument-counting macros generated by tools/macro_builder
-MACRO_SCOPE_HPP=include/nlohmann/detail/macro_scope.hpp


 ##########################################################################
@@ -34,14 +32,18 @@ MACRO_SCOPE_HPP=include/nlohmann/detail/macro_scope.hpp

 # main target
 all:
-	@echo "amalgamate - amalgamate files single_include/nlohmann/json{,_fwd,_literals}.hpp from the include/nlohmann sources"
+	@echo "amalgamate - amalgamate files single_include/nlohmann/json{,_fwd}.hpp from the include/nlohmann sources"
 	@echo "BUILD.bazel - regenerate the Bazel BUILD file from the include/nlohmann sources"
 	@echo "ChangeLog.md - generate ChangeLog file"
 	@echo "check-amalgamation - check whether sources have been amalgamated and BUILD.bazel is up to date"
 	@echo "clean - remove built files"
-	@echo "fuzzing - see tests/fuzzing.md for how to build and run the fuzzers"
-	@echo "macro_builder_check - check that macro_scope.hpp matches tools/macro_builder's output"
-	@echo "natvis - regenerate nlohmann_json.natvis from the current ABI tags and version"
+	@echo "doctest - compile example files and check their output"
+	@echo "fuzz_testing - prepare fuzz testing of the JSON parser"
+	@echo "fuzz_testing_bon8 - prepare fuzz testing of the BON8 parser"
+	@echo "fuzz_testing_bson - prepare fuzz testing of the BSON parser"
+	@echo "fuzz_testing_cbor - prepare fuzz testing of the CBOR parser"
+	@echo "fuzz_testing_msgpack - prepare fuzz testing of the MessagePack parser"
+	@echo "fuzz_testing_ubjson - prepare fuzz testing of the UBJSON parser"
 	@echo "pretty - beautify code with Artistic Style"
 	@echo "run_benchmarks - build and run benchmarks"
 	@echo "update_hedley - download Hedley and regenerate hedley.hpp / hedley_undef.hpp"
@@ -60,6 +62,74 @@ run_benchmarks:
 	cd cmake-build-benchmarks ; ./json_benchmarks


+##########################################################################
+# fuzzing
+##########################################################################
+
+# the overall fuzz testing target
+fuzz_testing:
+	rm -fr fuzz-testing
+	mkdir -p fuzz-testing fuzz-testing/testcases fuzz-testing/out
+	$(MAKE) parse_afl_fuzzer -C tests CXX=afl-clang++
+	mv tests/parse_afl_fuzzer fuzz-testing/fuzzer
+	find tests/data/json_tests -size -5k -name *json | xargs -I{} cp "{}" fuzz-testing/testcases
+	@echo "Execute: afl-fuzz -i fuzz-testing/testcases -o fuzz-testing/out fuzz-testing/fuzzer"
+
+fuzz_testing_bon8:
+	rm -fr fuzz-testing
+	mkdir -p fuzz-testing fuzz-testing/testcases fuzz-testing/out
+	$(MAKE) parse_bon8_fuzzer -C tests CXX=afl-clang++
+	mv tests/parse_bon8_fuzzer fuzz-testing/fuzzer
+	find tests/data -size -5k -name *.bon8 | xargs -I{} cp "{}" fuzz-testing/testcases
+	@echo "Execute: afl-fuzz -i fuzz-testing/testcases -o fuzz-testing/out fuzz-testing/fuzzer"
+
+fuzz_testing_bson:
+	rm -fr fuzz-testing
+	mkdir -p fuzz-testing fuzz-testing/testcases fuzz-testing/out
+	$(MAKE) parse_bson_fuzzer -C tests CXX=afl-clang++
+	mv tests/parse_bson_fuzzer fuzz-testing/fuzzer
+	find tests/data -size -5k -name *.bson | xargs -I{} cp "{}" fuzz-testing/testcases
+	@echo "Execute: afl-fuzz -i fuzz-testing/testcases -o fuzz-testing/out fuzz-testing/fuzzer"
+
+fuzz_testing_cbor:
+	rm -fr fuzz-testing
+	mkdir -p fuzz-testing fuzz-testing/testcases fuzz-testing/out
+	$(MAKE) parse_cbor_fuzzer -C tests CXX=afl-clang++
+	mv tests/parse_cbor_fuzzer fuzz-testing/fuzzer
+	find tests/data -size -5k -name *.cbor | xargs -I{} cp "{}" fuzz-testing/testcases
+	@echo "Execute: afl-fuzz -i fuzz-testing/testcases -o fuzz-testing/out fuzz-testing/fuzzer"
+
+fuzz_testing_msgpack:
+	rm -fr fuzz-testing
+	mkdir -p fuzz-testing fuzz-testing/testcases fuzz-testing/out
+	$(MAKE) parse_msgpack_fuzzer -C tests CXX=afl-clang++
+	mv tests/parse_msgpack_fuzzer fuzz-testing/fuzzer
+	find tests/data -size -5k -name *.msgpack | xargs -I{} cp "{}" fuzz-testing/testcases
+	@echo "Execute: afl-fuzz -i fuzz-testing/testcases -o fuzz-testing/out fuzz-testing/fuzzer"
+
+fuzz_testing_ubjson:
+	rm -fr fuzz-testing
+	mkdir -p fuzz-testing fuzz-testing/testcases fuzz-testing/out
+	$(MAKE) parse_ubjson_fuzzer -C tests CXX=afl-clang++
+	mv tests/parse_ubjson_fuzzer fuzz-testing/fuzzer
+	find tests/data -size -5k -name *.ubjson | xargs -I{} cp "{}" fuzz-testing/testcases
+	@echo "Execute: afl-fuzz -i fuzz-testing/testcases -o fuzz-testing/out fuzz-testing/fuzzer"
+
+fuzzing-start:
+	afl-fuzz -S fuzzer1 -i fuzz-testing/testcases -o fuzz-testing/out fuzz-testing/fuzzer > /dev/null &
+	afl-fuzz -S fuzzer2 -i fuzz-testing/testcases -o fuzz-testing/out fuzz-testing/fuzzer > /dev/null &
+	afl-fuzz -S fuzzer3 -i fuzz-testing/testcases -o fuzz-testing/out fuzz-testing/fuzzer > /dev/null &
+	afl-fuzz -S fuzzer4 -i fuzz-testing/testcases -o fuzz-testing/out fuzz-testing/fuzzer > /dev/null &
+	afl-fuzz -S fuzzer5 -i fuzz-testing/testcases -o fuzz-testing/out fuzz-testing/fuzzer > /dev/null &
+	afl-fuzz -S fuzzer6 -i fuzz-testing/testcases -o fuzz-testing/out fuzz-testing/fuzzer > /dev/null &
+	afl-fuzz -S fuzzer7 -i fuzz-testing/testcases -o fuzz-testing/out fuzz-testing/fuzzer > /dev/null &
+	afl-fuzz -M fuzzer0 -i fuzz-testing/testcases -o fuzz-testing/out fuzz-testing/fuzzer
+
+fuzzing-stop:
+	-killall fuzzer
+	-killall afl-fuzz
+
+
 ##########################################################################
 # Static analysis
 ##########################################################################
@@ -87,10 +157,14 @@ install_astyle:

 # call the Artistic Style pretty printer on all source files
 pretty: install_astyle
-	$(ASTYLE) --project=tools/astyle/.astylerc $(SRCS) $(TESTS_SRCS) $(AMALGAMATED_FILE) $(AMALGAMATED_FWD_FILE) $(AMALGAMATED_LITERALS_FILE) docs/mkdocs/docs/examples/*.cpp docs/mkdocs/docs/examples/*.hpp
+	$(ASTYLE) --project=tools/astyle/.astylerc $(SRCS) $(TESTS_SRCS) $(AMALGAMATED_FILE) $(AMALGAMATED_FWD_FILE) docs/mkdocs/docs/examples/*.cpp
+
+# call the Clang-Format on all source files
+pretty_format:
+	for FILE in $(SRCS) $(TESTS_SRCS) $(AMALGAMATED_FILE) docs/mkdocs/docs/examples/*.cpp; do echo $$FILE; clang-format -i $$FILE; done

 # create single header files and pretty print
-amalgamate: $(AMALGAMATED_FILE) $(AMALGAMATED_FWD_FILE) $(AMALGAMATED_LITERALS_FILE)
+amalgamate: $(AMALGAMATED_FILE) $(AMALGAMATED_FWD_FILE)
 	$(MAKE) pretty

 # call the amalgamation tool for json.hpp
@@ -101,50 +175,20 @@ $(AMALGAMATED_FILE): $(SRCS)
 $(AMALGAMATED_FWD_FILE): $(SRCS)
 	tools/amalgamate/amalgamate.py -c tools/amalgamate/config_json_fwd.json -s . --verbose=yes

-# copy json_literals.hpp
-$(AMALGAMATED_LITERALS_FILE): include/nlohmann/json_literals.hpp
-	cp include/nlohmann/json_literals.hpp $(AMALGAMATED_LITERALS_FILE)
-
-# regenerate nlohmann_json.natvis from the ABI tags and version in include/nlohmann/detail/abi_macros.hpp
-natvis:
-	python3 tools/generate_natvis/generate_natvis.py .
-
-# regenerate the two tools/macro_builder blocks of $(MACRO_SCOPE_HPP) (see its README.md) and diff against the
-# checked-in header; phony, because it never writes $(MACRO_SCOPE_HPP) itself
-macro_builder_check:
-	@set -e; \
-	TMPDIR=$$(mktemp -d ./macro_builder_check.XXXXXX); \
-	trap 'rm -rf "$$TMPDIR"' EXIT; \
-	$(CXX) -std=c++11 tools/macro_builder/main.cpp -o "$$TMPDIR/macro_builder"; \
-	"$$TMPDIR/macro_builder" > "$$TMPDIR/paste.hpp"; \
-	"$$TMPDIR/macro_builder" type_body > "$$TMPDIR/type_body.hpp"; \
-	$(ASTYLE) --project=tools/astyle/.astylerc --suffix=none --quiet "$$TMPDIR/paste.hpp" "$$TMPDIR/type_body.hpp"; \
-	sed -n '/^#define NLOHMANN_JSON_EXPAND( x ) x$$/,/^#define NLOHMANN_JSON_DOUBLE_PASTE63(/p' $(MACRO_SCOPE_HPP) > "$$TMPDIR/paste_actual.hpp"; \
-	sed -n '/^#define NLOHMANN_JSON_TYPE_BODY(Prefix, \.\.\.)/,/^        NLOHMANN_JSON_TYPE_BODY_SENTINEL))$$/p' $(MACRO_SCOPE_HPP) > "$$TMPDIR/type_body_actual.hpp"; \
-	diff "$$TMPDIR/paste.hpp" "$$TMPDIR/paste_actual.hpp" || (echo "===================================================================\n  $(MACRO_SCOPE_HPP) (NLOHMANN_JSON_EXPAND..NLOHMANN_JSON_DOUBLE_PASTE63) is out of date!\n  Regenerate it, see tools/macro_builder/README.md.\n===================================================================" ; exit 1); \
-	diff "$$TMPDIR/type_body.hpp" "$$TMPDIR/type_body_actual.hpp" || (echo "===================================================================\n  $(MACRO_SCOPE_HPP) (NLOHMANN_JSON_TYPE_BODY) is out of date!\n  Regenerate it, see tools/macro_builder/README.md.\n===================================================================" ; exit 1)
-
 # check if file single_include/nlohmann/json.hpp has been amalgamated from the nlohmann sources
+# Note: this target is called by Travis
 check-amalgamation:
 	@mv $(AMALGAMATED_FILE) $(AMALGAMATED_FILE)~
 	@mv $(AMALGAMATED_FWD_FILE) $(AMALGAMATED_FWD_FILE)~
-	@mv $(AMALGAMATED_LITERALS_FILE) $(AMALGAMATED_LITERALS_FILE)~
 	@$(MAKE) amalgamate
 	@diff $(AMALGAMATED_FILE) $(AMALGAMATED_FILE)~ || (echo "===================================================================\n  Amalgamation required! Please read the contribution guidelines\n  in file .github/CONTRIBUTING.md.\n===================================================================" ; mv $(AMALGAMATED_FILE)~ $(AMALGAMATED_FILE) ; false)
 	@diff $(AMALGAMATED_FWD_FILE) $(AMALGAMATED_FWD_FILE)~ || (echo "===================================================================\n  Amalgamation required! Please read the contribution guidelines\n  in file .github/CONTRIBUTING.md.\n===================================================================" ; mv $(AMALGAMATED_FWD_FILE)~ $(AMALGAMATED_FWD_FILE) ; false)
-	@diff $(AMALGAMATED_LITERALS_FILE) $(AMALGAMATED_LITERALS_FILE)~ || (echo "===================================================================\n  Amalgamation required! Please read the contribution guidelines\n  in file .github/CONTRIBUTING.md.\n===================================================================" ; mv $(AMALGAMATED_LITERALS_FILE)~ $(AMALGAMATED_LITERALS_FILE) ; false)
 	@mv $(AMALGAMATED_FILE)~ $(AMALGAMATED_FILE)
 	@mv $(AMALGAMATED_FWD_FILE)~ $(AMALGAMATED_FWD_FILE)
-	@mv $(AMALGAMATED_LITERALS_FILE)~ $(AMALGAMATED_LITERALS_FILE)
 	@mv BUILD.bazel BUILD.bazel~
 	@$(MAKE) BUILD.bazel
 	@diff BUILD.bazel BUILD.bazel~ || (echo "===================================================================\n  BUILD.bazel is out of date! Please run 'make BUILD.bazel'.\n===================================================================" ; mv BUILD.bazel~ BUILD.bazel ; false)
 	@mv BUILD.bazel~ BUILD.bazel
-	@mv nlohmann_json.natvis nlohmann_json.natvis~
-	@$(MAKE) natvis
-	@diff nlohmann_json.natvis nlohmann_json.natvis~ || (echo "===================================================================\n  nlohmann_json.natvis is out of date! Please run 'make natvis'.\n===================================================================" ; mv nlohmann_json.natvis~ nlohmann_json.natvis ; false)
-	@mv nlohmann_json.natvis~ nlohmann_json.natvis
-	@$(MAKE) macro_builder_check

 # generate the Bazel BUILD file; phony, because a removed header would not trigger a rebuild
 BUILD.bazel:
@@ -174,14 +218,14 @@ ChangeLog.md:
 # archive is created according to the advices of <https://reproducible-builds.org/docs/archives/>.
 json.tar.xz:
 	mkdir json
-	rsync -R $(shell find LICENSE.MIT nlohmann_json.natvis CMakeLists.txt cmake/*.in include single_include -type f) json
-	gtar --sort=name --mtime="@$(shell git log -1 --pretty=%ct)" --owner=0 --group=0 --numeric-owner --pax-option=exthdr.name=%d/PaxHeaders/%f,delete=atime,delete=ctime --create --file - json | xz --compress -9e --threads=2 - > json.tar.xz
+	rsync -R $(shell find LICENSE.MIT nlohmann_json.natvis CMakeLists.txt cmake/*.in include single_include src/modules -type f) json
+	$(TAR) --sort=name --mtime="@$(shell git log -1 --pretty=%ct)" --owner=0 --group=0 --numeric-owner --pax-option=exthdr.name=%d/PaxHeaders/%f,delete=atime,delete=ctime --create --file - json | xz --compress -9e --threads=2 - > json.tar.xz
 	rm -fr json

 # We use `-X` to make the resulting ZIP file reproducible, see
 # <https://content.pivotal.io/blog/barriers-to-deterministic-reproducible-zip-files>.
 include.zip: BUILD.bazel
-	zip -9 --recurse-paths -X include.zip $(SRCS) $(AMALGAMATED_FILE) $(AMALGAMATED_FWD_FILE) $(AMALGAMATED_LITERALS_FILE) BUILD.bazel MODULE.bazel meson.build LICENSE.MIT
+	zip -9 --recurse-paths -X include.zip $(SRCS) $(AMALGAMATED_FILE) $(AMALGAMATED_FWD_FILE) BUILD.bazel MODULE.bazel meson.build LICENSE.MIT

 # Create the files for a release and add signatures and hashes.
 release: include.zip json.tar.xz
@@ -190,13 +234,11 @@ release: include.zip json.tar.xz
 	gpg --armor --detach-sig include.zip
 	gpg --armor --detach-sig $(AMALGAMATED_FILE)
 	gpg --armor --detach-sig $(AMALGAMATED_FWD_FILE)
-	gpg --armor --detach-sig $(AMALGAMATED_LITERALS_FILE)
 	gpg --armor --detach-sig json.tar.xz
 	cp $(AMALGAMATED_FILE) release_files
 	cp $(AMALGAMATED_FWD_FILE) release_files
-	cp $(AMALGAMATED_LITERALS_FILE) release_files
-	mv $(AMALGAMATED_FILE).asc $(AMALGAMATED_FWD_FILE).asc $(AMALGAMATED_LITERALS_FILE).asc json.tar.xz json.tar.xz.asc include.zip include.zip.asc release_files
-	cd release_files ; shasum -a 256 $$(find . -type f -not -name '*.asc' | sed 's|^\./||' | sort) > hashes.txt
+	mv $(AMALGAMATED_FILE).asc $(AMALGAMATED_FWD_FILE).asc json.tar.xz json.tar.xz.asc include.zip include.zip.asc release_files
+	cd release_files ; shasum -a 256 json.hpp include.zip json.tar.xz > hashes.txt


 ##########################################################################
@@ -206,6 +248,7 @@ release: include.zip json.tar.xz
 # clean up
 clean:
 	rm -fr fuzz fuzz-testing *.dSYM tests/*.dSYM
+	rm -fr benchmarks/files/numbers/*.json
 	rm -fr cmake-build-benchmarks fuzz-testing cmake-build-pvs-studio release_files
 	$(MAKE) clean -Cdocs

@@ -6,7 +6,7 @@ import PackageDescription
 let package = Package(
    name: "nlohmann-json",
     platforms: [
-        .iOS(.v12), .macOS(.v10_13), .tvOS(.v12), .watchOS(.v4), .visionOS(.v1)
+        .iOS(.v12), .macOS(.v10_13), .tvOS(.v12), .watchOS(.v9), .visionOS(.v1)
    ],
    products: [
        .library(name: "json", targets: ["json"])
@@ -7,6 +7,7 @@
 [![Coverage Status](https://coveralls.io/repos/github/nlohmann/json/badge.svg?branch=develop)](https://coveralls.io/github/nlohmann/json?branch=develop)
 [![Coverity Scan Build Status](https://scan.coverity.com/projects/5550/badge.svg)](https://scan.coverity.com/projects/nlohmann-json)
 [![Codacy Badge](https://app.codacy.com/project/badge/Grade/e0d1a9d5d6fd46fcb655c4cb930bb3e8)](https://app.codacy.com/gh/nlohmann/json/dashboard?utm_source=gh&utm_medium=referral&utm_content=&utm_campaign=Badge_grade)
+[![Cirrus CI](https://api.cirrus-ci.com/github/nlohmann/json.svg)](https://cirrus-ci.com/github/nlohmann/json)
 [![Fuzzing Status](https://oss-fuzz-build-logs.storage.googleapis.com/badges/json.svg)](https://bugs.chromium.org/p/oss-fuzz/issues/list?sort=-opened&can=1&q=proj:json)
 [![Try online](https://img.shields.io/badge/try-online-blue.svg)](https://wandbox.org/permlink/1mp10JbaANo6FUc7)
 [![Documentation](https://img.shields.io/badge/docs-mkdocs-blue.svg)](https://json.nlohmann.me)
@@ -1203,15 +1204,18 @@ language bindings, format converters, and the like. See the curated [Ecosystem](

 Though it's 2026 already, the support for C++11 is still a bit sparse. Currently, the following compilers are known to work:

- GCC 4.8 - 14.2 (and possibly later)
- Clang 3.4 - 21.0 (and possibly later)
- Apple Clang 9.1 - 16.0 (and possibly later)
- Intel C++ Compiler 17.0.2 (and possibly later)
- Nvidia CUDA Compiler 11.0.221 (and possibly later)
- Microsoft Visual C++ 2015 / Build Tools 14.0.25123.0 (and possibly later)
- Microsoft Visual C++ 2017 / Build Tools 15.5.180.51428 (and possibly later)
- Microsoft Visual C++ 2019 / Build Tools 16.3.1+1def00d3d (and possibly later)
- Microsoft Visual C++ 2022 / Build Tools 19.30.30709.0 (and possibly later)
+- GCC 4.8 - 16.2 (and possibly later)
+- Clang 3.4 - 22.1 (and possibly later)
+- Apple Clang 15.0 - 21.0 (and possibly later)
+- Intel C++ Compiler Classic (icpc) 2021.10
+- Intel oneAPI DPC++/C++ Compiler (icpx) 2025.3 (and possibly later)
+- NVIDIA CUDA Compiler (nvcc) 11.8 - 12.6 (and possibly later)
+- NVIDIA HPC SDK C++ Compiler (nvc++) 25.5 (and possibly later)
+- Microsoft Visual C++ 2015 / MSVC 19.0 (and possibly later)
+- Microsoft Visual C++ 2017 / MSVC 19.16 (and possibly later)
+- Microsoft Visual C++ 2019 / MSVC 19.29 (and possibly later)
+- Microsoft Visual C++ 2022 / MSVC 19.44 (and possibly later)
+- Microsoft Visual C++ 2026 / MSVC 19.51 (and possibly later)

 I would be happy to learn about other compilers/versions.

@@ -1394,7 +1398,6 @@ THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR I
 - The class contains a slightly modified version of the Grisu2 algorithm from Florian Loitsch which is licensed under the [MIT License](https://opensource.org/licenses/MIT) (see above). Copyright &copy; 2009 [Florian Loitsch](https://florian.loitsch.com/)
 - The class contains a copy of [Hedley](https://nemequ.github.io/hedley/) from Evan Nemerson which is licensed as [CC0-1.0](https://creativecommons.org/publicdomain/zero/1.0/).
 - The class contains parts of [Google Abseil](https://github.com/abseil/abseil-cpp) which is licensed under the [Apache 2.0 License](https://opensource.org/licenses/Apache-2.0).
- The class contains an adapted version of the Eisel-Lemire algorithm and its table of powers of five from [fast_float](https://github.com/fastfloat/fast_float) by Daniel Lemire and contributors, which is available under the [MIT License](https://opensource.org/licenses/MIT) (used here), the Apache 2.0 License, and the Boost Software License. Copyright &copy; 2021 The fast_float authors

 <img align="right" src="https://git.fsfe.org/reuse/reuse-ci/raw/branch/master/reuse-horizontal.png" alt="REUSE Software">

@@ -1402,7 +1405,7 @@ The library is compliant to version 3.3 of the [**REUSE specification**](https:/

 - Every source file contains an SPDX copyright header.
 - The full text of all licenses used in the repository can be found in the `LICENSES` folder.
- File `.reuse/dep5` contains an overview of all files' copyrights and licenses.
+- File `REUSE.toml` contains an overview of all files' copyrights and licenses.
 - Run `pipx run reuse lint` to verify the project's REUSE compliance and `pipx run reuse spdx` to generate a SPDX SBOM.

 ## Contact
@@ -0,0 +1,58 @@
+version = 1
+SPDX-PackageName = "json"
+SPDX-PackageSupplier = "Niels Lohmann <mail@nlohmann.me>"
+SPDX-PackageDownloadLocation = "https://github.com/nlohmann/json"
+
+[[annotations]]
+path = "**"
+precedence = "aggregate"
+SPDX-FileCopyrightText = "2013-2026 Niels Lohmann <https://nlohmann.me>"
+SPDX-License-Identifier = "MIT"
+
+[[annotations]]
+path = "include/nlohmann/thirdparty/hedley.hpp"
+precedence = "aggregate"
+SPDX-FileCopyrightText = "2016-2021 Evan Nemerson <evan@nemerson.com>"
+SPDX-License-Identifier = "CC0"
+
+[[annotations]]
+path = "include/nlohmann/detail/meta/cpp_future.hpp"
+precedence = "aggregate"
+SPDX-FileCopyrightText = "2013-2026 Niels Lohmann <https://nlohmann.me> and 2018 The Abseil Authors"
+SPDX-License-Identifier = "MIT AND Apache-2.0"
+
+[[annotations]]
+path = "tests/thirdparty/doctest/**"
+precedence = "aggregate"
+SPDX-FileCopyrightText = "2016-2023 Viktor Kirilov"
+SPDX-License-Identifier = "MIT"
+
+[[annotations]]
+path = "tests/thirdparty/fifo_map/**"
+precedence = "aggregate"
+SPDX-FileCopyrightText = "2015-2017 Niels Lohmann"
+SPDX-License-Identifier = "MIT"
+
+[[annotations]]
+path = "tests/thirdparty/Fuzzer/**"
+precedence = "aggregate"
+SPDX-FileCopyrightText = "2003-2022 LLVM Project."
+SPDX-License-Identifier = "Apache-2.0"
+
+[[annotations]]
+path = "tests/thirdparty/imapdl/**"
+precedence = "aggregate"
+SPDX-FileCopyrightText = "2017 Georg Sauthoff <mail@gms.tf>"
+SPDX-License-Identifier = "GPL-3.0-only"
+
+[[annotations]]
+path = "tools/amalgamate/**"
+precedence = "aggregate"
+SPDX-FileCopyrightText = "2012 Erik Edlund <erik.edlund@32767.se>"
+SPDX-License-Identifier = "BSD-3-Clause"
+
+[[annotations]]
+path = "tools/gdb_pretty_printer/**"
+precedence = "aggregate"
+SPDX-FileCopyrightText = "2020 Hannes Domani <https://github.com/ssbssa>"
+SPDX-License-Identifier = "MIT"
@@ -40,14 +40,6 @@ execute_process(COMMAND ${IWYU_TOOL} --version OUTPUT_VARIABLE IWYU_TOOL_VERSION
 string(REGEX MATCH "[0-9]+(\\.[0-9]+)+" IWYU_TOOL_VERSION "${IWYU_TOOL_VERSION}")
 message(STATUS "🔖 include-what-you-use ${IWYU_TOOL_VERSION} (${IWYU_TOOL})")

-# CMake's CXX_INCLUDE_WHAT_YOU_USE launcher runs IWYU during the normal compile step (useful to see
-# diagnostics inline), but CMake's own __run_co_compile wrapper does not propagate the launched
-# tool's exit code to the build, so IWYU's own "-Xiwyu --error" cannot fail that step (verified: a
-# deliberately-unused #include in a header still lets `cmake --build` finish with exit code 0).
-# iwyu_tool.py, which ships with IWYU, reads compile_commands.json and does return a non-zero exit
-# code for any analyzed file with findings; ci_single_binaries uses it to actually fail on findings.
-find_program(IWYU_TOOL_PY NAMES iwyu_tool iwyu_tool.py iwyu-tool)
-
 find_program(INFER_TOOL NAMES infer)
 execute_process(COMMAND ${INFER_TOOL} --version OUTPUT_VARIABLE INFER_TOOL_VERSION ERROR_VARIABLE INFER_TOOL_VERSION)
 string(REGEX MATCH "[0-9]+(\\.[0-9]+)+" INFER_TOOL_VERSION "${INFER_TOOL_VERSION}")
@@ -63,6 +55,12 @@ execute_process(COMMAND ${NINJA_TOOL} --version OUTPUT_VARIABLE NINJA_TOOL_VERSI
 string(REGEX MATCH "[0-9]+(\\.[0-9]+)+" NINJA_TOOL_VERSION "${NINJA_TOOL_VERSION}")
 message(STATUS "🔖 Ninja ${NINJA_TOOL_VERSION} (${NINJA_TOOL})")

+find_program(OCLINT_TOOL NAMES oclint-json-compilation-database)
+find_program(OCLINT_VERSION_TOOL NAMES oclint)
+execute_process(COMMAND ${OCLINT_VERSION_TOOL} --version OUTPUT_VARIABLE OCLINT_TOOL_VERSION ERROR_VARIABLE OCLINT_TOOL_VERSION)
+string(REGEX MATCH "[0-9]+(\\.[0-9]+)+" OCLINT_TOOL_VERSION "${OCLINT_TOOL_VERSION}")
+message(STATUS "🔖 OCLint ${OCLINT_TOOL_VERSION} (${OCLINT_TOOL})")
+
 find_program(VALGRIND_TOOL NAMES valgrind)
 execute_process(COMMAND ${VALGRIND_TOOL} --version OUTPUT_VARIABLE VALGRIND_TOOL_VERSION ERROR_VARIABLE VALGRIND_TOOL_VERSION)
 string(REGEX MATCH "[0-9]+(\\.[0-9]+)+" VALGRIND_TOOL_VERSION "${VALGRIND_TOOL_VERSION}")
@@ -130,16 +128,16 @@ foreach(CXX_STANDARD 11 14 17 20 23 26)
        COMMENT "Compile and test with Clang for C++${CXX_STANDARD}"
    )

-    # pass -stdlib=libc++ through CXXFLAGS: an explicit -DCMAKE_CXX_FLAGS would make CMake ignore CXXFLAGS
    add_custom_target(ci_test_clang_libcxx_cxx${CXX_STANDARD}
-        COMMAND CXX=${CLANG_TOOL} CXXFLAGS="${CLANG_CXXFLAGS};-stdlib=libc++" ${CMAKE_COMMAND}
+        COMMAND CXX=${CLANG_TOOL} CXXFLAGS="${CLANG_CXXFLAGS}" ${CMAKE_COMMAND}
            -DCMAKE_BUILD_TYPE=Debug -GNinja
            -DJSON_BuildTests=ON -DJSON_FastTests=ON
            -DJSON_TestStandards=${CXX_STANDARD}
+            -DCMAKE_CXX_FLAGS="-stdlib=libc++"
            -DCMAKE_EXE_LINKER_FLAGS="-lc++abi"
-            -S${PROJECT_SOURCE_DIR} -B${PROJECT_BINARY_DIR}/build_clang_libcxx_cxx${CXX_STANDARD}
-        COMMAND ${CMAKE_COMMAND} --build ${PROJECT_BINARY_DIR}/build_clang_libcxx_cxx${CXX_STANDARD}
-        COMMAND cd ${PROJECT_BINARY_DIR}/build_clang_libcxx_cxx${CXX_STANDARD} && ${CMAKE_CTEST_COMMAND} --parallel ${N} --output-on-failure
+            -S${PROJECT_SOURCE_DIR} -B${PROJECT_BINARY_DIR}/build_clang_cxx${CXX_STANDARD}
+        COMMAND ${CMAKE_COMMAND} --build ${PROJECT_BINARY_DIR}/build_clang_cxx${CXX_STANDARD}
+        COMMAND cd ${PROJECT_BINARY_DIR}/build_clang_cxx${CXX_STANDARD} && ${CMAKE_CTEST_COMMAND} --parallel ${N} --output-on-failure
        COMMENT "Compile and test with Clang for C++${CXX_STANDARD} (libc++)"
    )
 endforeach()
@@ -278,20 +276,6 @@ add_custom_target(ci_test_disableenumserialization
    COMMENT "Compile and test with enum serialization disabled"
 )

-###############################################################################
-# Disable conversion from a one-element tuple of a JSON reference.
-###############################################################################
-
-add_custom_target(ci_test_disabletuplereferenceconversion
-    COMMAND ${CMAKE_COMMAND}
-    -DCMAKE_BUILD_TYPE=Debug -GNinja
-    -DJSON_BuildTests=ON -DJSON_FastTests=ON -DJSON_DisableTupleReferenceConversion=ON
-    -S${PROJECT_SOURCE_DIR} -B${PROJECT_BINARY_DIR}/build_disabletuplereferenceconversion
-    COMMAND ${CMAKE_COMMAND} --build ${PROJECT_BINARY_DIR}/build_disabletuplereferenceconversion
-    COMMAND cd ${PROJECT_BINARY_DIR}/build_disabletuplereferenceconversion && ${CMAKE_CTEST_COMMAND} --parallel ${N} --output-on-failure
-    COMMENT "Compile and test with tuple reference conversion disabled"
-)
-
 ###############################################################################
 # Skip the multiple-inclusion library version check.
 ###############################################################################
@@ -378,29 +362,20 @@ add_custom_target(ci_test_clang_sanitizer
 # Check if header is amalgamated and sources are properly indented.
 ###############################################################################

-# Same file set as .github/workflows/check_amalgamation.yml, so a direct push to develop/master/release/*
-# (which only this CMake target checks, not the pull_request-only workflow) is held to the same standard.
 file(GLOB_RECURSE INDENT_FILES
-    ${PROJECT_SOURCE_DIR}/docs/mkdocs/docs/examples/*.hpp
+    ${PROJECT_SOURCE_DIR}/include/nlohmann/*.hpp
+        ${PROJECT_SOURCE_DIR}/tests/src/*.cpp
+        ${PROJECT_SOURCE_DIR}/tests/src/*.hpp
+        ${PROJECT_SOURCE_DIR}/tests/benchmarks/src/benchmarks.cpp
    ${PROJECT_SOURCE_DIR}/docs/mkdocs/docs/examples/*.cpp
-    ${PROJECT_SOURCE_DIR}/docs/mkdocs/docs/examples/*.cu
-    ${PROJECT_SOURCE_DIR}/include/*.hpp
-    ${PROJECT_SOURCE_DIR}/include/*.cpp
-    ${PROJECT_SOURCE_DIR}/include/*.cu
-    ${PROJECT_SOURCE_DIR}/tests/*.hpp
-    ${PROJECT_SOURCE_DIR}/tests/*.cpp
-    ${PROJECT_SOURCE_DIR}/tests/*.cu
 )
-list(FILTER INDENT_FILES EXCLUDE REGEX "/tests/thirdparty/|/tests/abi/include/nlohmann/")

 set(include_dir ${PROJECT_SOURCE_DIR}/single_include/nlohmann)
 set(tool_dir ${PROJECT_SOURCE_DIR}/tools/amalgamate)
 add_custom_target(ci_test_amalgamation
-    COMMAND rm -fr ${include_dir}/json.hpp~ ${include_dir}/json_fwd.hpp~ ${include_dir}/json_literals.hpp~
+    COMMAND rm -fr ${include_dir}/json.hpp~ ${include_dir}/json_fwd.hpp~
    COMMAND cp ${include_dir}/json.hpp ${include_dir}/json.hpp~
    COMMAND cp ${include_dir}/json_fwd.hpp ${include_dir}/json_fwd.hpp~
-    COMMAND cp ${include_dir}/json_literals.hpp ${include_dir}/json_literals.hpp~
-    COMMAND cp ${PROJECT_SOURCE_DIR}/BUILD.bazel ${PROJECT_SOURCE_DIR}/BUILD.bazel~

    COMMAND ${Python3_EXECUTABLE} -mvenv venv_astyle
    COMMAND venv_astyle/bin/pip3 --quiet install -r ${CMAKE_SOURCE_DIR}/tools/astyle/requirements.txt
@@ -408,20 +383,16 @@ add_custom_target(ci_test_amalgamation

    COMMAND ${Python3_EXECUTABLE} ${tool_dir}/amalgamate.py -c ${tool_dir}/config_json.json -s .
    COMMAND ${Python3_EXECUTABLE} ${tool_dir}/amalgamate.py -c ${tool_dir}/config_json_fwd.json -s .
-    COMMAND cp ${PROJECT_SOURCE_DIR}/include/nlohmann/json_literals.hpp ${include_dir}/json_literals.hpp
    COMMAND venv_astyle/bin/astyle --project=tools/astyle/.astylerc --suffix=none ${include_dir}/json.hpp ${include_dir}/json_fwd.hpp
-    COMMAND ${CMAKE_COMMAND} -P ${PROJECT_SOURCE_DIR}/cmake/scripts/gen_bazel_build_file.cmake

    COMMAND diff ${include_dir}/json.hpp~ ${include_dir}/json.hpp
    COMMAND diff ${include_dir}/json_fwd.hpp~ ${include_dir}/json_fwd.hpp
-    COMMAND diff ${include_dir}/json_literals.hpp~ ${include_dir}/json_literals.hpp
-    COMMAND diff ${PROJECT_SOURCE_DIR}/BUILD.bazel~ ${PROJECT_SOURCE_DIR}/BUILD.bazel

    COMMAND venv_astyle/bin/astyle --project=tools/astyle/.astylerc --suffix=orig ${INDENT_FILES}
    COMMAND for FILE in `find . -name '*.orig'`\; do false \; done

    WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
-    COMMENT "Check amalgamation, formatting, and BUILD.bazel"
+    COMMENT "Check amalgamation and indentation"
 )

 ###############################################################################
@@ -456,14 +427,14 @@ add_custom_target(ci_test_valgrind
 # Check code with Clang Static Analyzer.
 ###############################################################################

-set(CLANG_ANALYZER_CHECKS "nullability.NullableDereferenced,nullability.NullablePassedToNonnull,nullability.NullableReturnedFromNonnull,optin.cplusplus.UninitializedObject,optin.cplusplus.VirtualCall,optin.performance.Padding,optin.portability.UnixAPI,security.FloatLoopCounter,security.insecureAPI.DeprecatedOrUnsafeBufferHandling,security.insecureAPI.bcmp,security.insecureAPI.bcopy,security.insecureAPI.bzero,security.insecureAPI.rand,security.insecureAPI.strcpy,valist.CopyToSelf,valist.Uninitialized,valist.Unterminated,core.CallAndMessage,core.DivideZero,core.NonNullParamChecker,core.NullDereference,core.StackAddressEscape,core.UndefinedBinaryOperatorResult,core.VLASize,core.uninitialized.ArraySubscript,core.uninitialized.Assign,core.uninitialized.Branch,core.uninitialized.CapturedBlockVariable,core.uninitialized.UndefReturn,cplusplus.InnerPointer,cplusplus.Move,cplusplus.NewDelete,cplusplus.NewDeleteLeaks,cplusplus.PlacementNew,cplusplus.PureVirtualCall,deadcode.DeadStores,nullability.NullPassedToNonnull,nullability.NullReturnedFromNonnull,security.insecureAPI.UncheckedReturn,security.insecureAPI.decodeValueOfObjCType,security.insecureAPI.getpw,security.insecureAPI.gets,security.insecureAPI.mkstemp,security.insecureAPI.mktemp,security.insecureAPI.vfork,unix.API,unix.Malloc,unix.MallocSizeof,unix.MismatchedDeallocator,unix.Vfork,unix.cstring.BadSizeArg,unix.cstring.NullArg")
+set(CLANG_ANALYZER_CHECKS "fuchsia.HandleChecker,nullability.NullableDereferenced,nullability.NullablePassedToNonnull,nullability.NullableReturnedFromNonnull,optin.cplusplus.UninitializedObject,optin.cplusplus.VirtualCall,optin.mpi.MPI-Checker,optin.osx.OSObjectCStyleCast,optin.osx.cocoa.localizability.EmptyLocalizationContextChecker,optin.osx.cocoa.localizability.NonLocalizedStringChecker,optin.performance.GCDAntipattern,optin.performance.Padding,optin.portability.UnixAPI,security.FloatLoopCounter,security.insecureAPI.DeprecatedOrUnsafeBufferHandling,security.insecureAPI.bcmp,security.insecureAPI.bcopy,security.insecureAPI.bzero,security.insecureAPI.rand,security.insecureAPI.strcpy,valist.CopyToSelf,valist.Uninitialized,valist.Unterminated,webkit.NoUncountedMemberChecker,webkit.RefCntblBaseVirtualDtor,core.CallAndMessage,core.DivideZero,core.NonNullParamChecker,core.NullDereference,core.StackAddressEscape,core.UndefinedBinaryOperatorResult,core.VLASize,core.uninitialized.ArraySubscript,core.uninitialized.Assign,core.uninitialized.Branch,core.uninitialized.CapturedBlockVariable,core.uninitialized.UndefReturn,cplusplus.InnerPointer,cplusplus.Move,cplusplus.NewDelete,cplusplus.NewDeleteLeaks,cplusplus.PlacementNew,cplusplus.PureVirtualCall,deadcode.DeadStores,nullability.NullPassedToNonnull,nullability.NullReturnedFromNonnull,osx.API,osx.MIG,osx.NumberObjectConversion,osx.OSObjectRetainCount,osx.ObjCProperty,osx.SecKeychainAPI,osx.cocoa.AtSync,osx.cocoa.AutoreleaseWrite,osx.cocoa.ClassRelease,osx.cocoa.Dealloc,osx.cocoa.IncompatibleMethodTypes,osx.cocoa.Loops,osx.cocoa.MissingSuperCall,osx.cocoa.NSAutoreleasePool,osx.cocoa.NSError,osx.cocoa.NilArg,osx.cocoa.NonNilReturnValue,osx.cocoa.ObjCGenerics,osx.cocoa.RetainCount,osx.cocoa.RunLoopAutoreleaseLeak,osx.cocoa.SelfInit,osx.cocoa.SuperDealloc,osx.cocoa.UnusedIvars,osx.cocoa.VariadicMethodTypes,osx.coreFoundation.CFError,osx.coreFoundation.CFNumber,osx.coreFoundation.CFRetainRelease,osx.coreFoundation.containers.OutOfBounds,osx.coreFoundation.containers.PointerSizedValues,security.insecureAPI.UncheckedReturn,security.insecureAPI.decodeValueOfObjCType,security.insecureAPI.getpw,security.insecureAPI.gets,security.insecureAPI.mkstemp,security.insecureAPI.mktemp,security.insecureAPI.vfork,unix.API,unix.Malloc,unix.MallocSizeof,unix.MismatchedDeallocator,unix.Vfork,unix.cstring.BadSizeArg,unix.cstring.NullArg")

 add_custom_target(ci_clang_analyze
    COMMAND CXX=${CLANG_TOOL} ${CMAKE_COMMAND}
        -DCMAKE_BUILD_TYPE=Debug -GNinja
        -DJSON_BuildTests=ON
        -S${PROJECT_SOURCE_DIR} -B${PROJECT_BINARY_DIR}/build_clang_analyze
-    COMMAND cd ${PROJECT_BINARY_DIR}/build_clang_analyze && ${SCAN_BUILD_TOOL} -enable-checker ${CLANG_ANALYZER_CHECKS} --use-c++=${CLANG_TOOL} --use-analyzer=${CLANG_TOOL} -analyze-headers --status-bugs -o ${PROJECT_BINARY_DIR}/report ninja
+    COMMAND cd ${PROJECT_BINARY_DIR}/build_clang_analyze && ${SCAN_BUILD_TOOL} -enable-checker ${CLANG_ANALYZER_CHECKS} --use-c++=${CLANG_TOOL} -analyze-headers -o ${PROJECT_BINARY_DIR}/report ninja
    COMMENT "Check code with Clang Analyzer"
 )

@@ -479,7 +450,7 @@ add_custom_target(ci_cppcheck
    COMMAND venv_cppcheck/bin/cppcheck --enable=warning --check-level=exhaustive --inline-suppr --inconclusive --force
            --std=c++11 ${PROJECT_SOURCE_DIR}/include/nlohmann/json.hpp -I ${CMAKE_SOURCE_DIR}/include
            --error-exitcode=1 --relative-paths=${PROJECT_SOURCE_DIR} -j ${N} --include=default_defines.hpp
-            --cppcheck-build-dir=cppcheck
+            --cppcheck-build-dir=cppcheck --check-level=exhaustive
            -UJSON_CATCH_USER -UJSON_TRY_USER -UJSON_ASSERT -UJSON_INTERNAL_CATCH -UJSON_THROW
            -DJSON_HAS_CPP_11 -UJSON_HAS_CPP_14 -UJSON_HAS_CPP_17 -UJSON_HAS_CPP_20 -UJSON_HAS_THREE_WAY_COMPARISON
    COMMENT "Check code with Cppcheck"
@@ -497,6 +468,34 @@ add_custom_target(ci_cpplint
    WORKING_DIRECTORY ${PROJECT_BINARY_DIR}
 )

+###############################################################################
+# Check code with OCLint.
+###############################################################################
+
+file(COPY ${PROJECT_SOURCE_DIR}/single_include/nlohmann/json.hpp DESTINATION ${PROJECT_BINARY_DIR}/src_single)
+file(RENAME ${PROJECT_BINARY_DIR}/src_single/json.hpp ${PROJECT_BINARY_DIR}/src_single/all.cpp)
+file(APPEND "${PROJECT_BINARY_DIR}/src_single/all.cpp" "\n\nint main()\n{}\n")
+
+add_executable(single_all ${PROJECT_BINARY_DIR}/src_single/all.cpp)
+target_compile_features(single_all PRIVATE cxx_std_11)
+
+add_custom_target(ci_oclint
+    COMMAND ${CMAKE_COMMAND}
+        -DCMAKE_BUILD_TYPE=Debug
+        -DCMAKE_EXPORT_COMPILE_COMMANDS=ON
+        -DJSON_BuildTests=OFF -DJSON_CI=ON
+        -S${PROJECT_SOURCE_DIR} -B${PROJECT_BINARY_DIR}/build_oclint
+    COMMAND ${OCLINT_TOOL} -i ${PROJECT_BINARY_DIR}/build_oclint/src_single/all.cpp -p ${PROJECT_BINARY_DIR}/build_oclint --
+        -report-type html -enable-global-analysis --max-priority-1=0 --max-priority-2=1000 --max-priority-3=2000
+        --disable-rule=MultipleUnaryOperator
+        --disable-rule=DoubleNegative
+        --disable-rule=ShortVariableName
+        --disable-rule=GotoStatement
+        --disable-rule=LongLine
+        -o ${PROJECT_BINARY_DIR}/build_oclint/oclint_report.html
+    COMMENT "Check code with OCLint"
+)
+
 ###############################################################################
 # Check code with Clang-Tidy.
 ###############################################################################
@@ -511,16 +510,29 @@ add_custom_target(ci_clang_tidy
    COMMENT "Check code with Clang-Tidy"
 )

+###############################################################################
+# Check code with PVS-Studio Analyzer <https://www.viva64.com/en/pvs-studio/>.
+###############################################################################
+
+add_custom_target(ci_pvs_studio
+    COMMAND CXX=${CLANG_TOOL} ${CMAKE_COMMAND}
+        -DCMAKE_BUILD_TYPE=Debug
+        -DCMAKE_EXPORT_COMPILE_COMMANDS=ON
+        -DJSON_BuildTests=ON
+        -S${PROJECT_SOURCE_DIR} -B${PROJECT_BINARY_DIR}/build_pvs_studio
+    COMMAND cd ${PROJECT_BINARY_DIR}/build_pvs_studio && ${PVS_STUDIO_ANALYZER_TOOL} analyze -j 10
+    COMMAND cd ${PROJECT_BINARY_DIR}/build_pvs_studio && ${PLOG_CONVERTER_TOOL} -a'GA:1,2;64:1;CS' -t fullhtml PVS-Studio.log -o pvs
+    COMMENT "Check code with PVS Studio"
+)
+
 ###############################################################################
 # Check code with Infer <https://fbinfer.com> static analyzer.
 ###############################################################################

-# .inferconfig (repository root) pins --fail-on-issue and the currently-triaged issue types that
-# are disabled until they are addressed separately; see #5715 item 4b.
 add_custom_target(ci_infer
    COMMAND mkdir -p ${PROJECT_BINARY_DIR}/build_infer
    COMMAND cd ${PROJECT_BINARY_DIR}/build_infer && ${INFER_TOOL} compile -- ${CMAKE_COMMAND} -DCMAKE_BUILD_TYPE=Debug ${PROJECT_SOURCE_DIR} -DJSON_BuildTests=ON
-    COMMAND cd ${PROJECT_BINARY_DIR}/build_infer && ${INFER_TOOL} run --project-root ${PROJECT_SOURCE_DIR} -- make
+    COMMAND cd ${PROJECT_BINARY_DIR}/build_infer && ${INFER_TOOL} run -- make
    COMMENT "Check code with Infer"
 )

@@ -576,13 +588,7 @@ add_custom_target(ci_reproducible_tests
 # be compiled individually.
 ###############################################################################

-set(iwyu_options -Xiwyu --error -Xiwyu --max_line_length=300)
-set(iwyu_path_and_options ${IWYU_TOOL} ${iwyu_options})
-
-# CMake needs to know the exact flags used to compile each src_single/*.cpp below to hand them to
-# iwyu_tool.py; JSON_CI already implies a from-scratch configure, so enabling this project-wide has
-# no downside here.
-set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+set(iwyu_path_and_options ${IWYU_TOOL} -Xiwyu --max_line_length=300)

 foreach(SRC_FILE ${SRC_FILES})
    # get relative path of the header file
@@ -597,34 +603,14 @@ foreach(SRC_FILE ${SRC_FILES})
    target_include_directories(single_${RELATIVE_SRC_FILE} PRIVATE ${PROJECT_SOURCE_DIR}/include)
    target_compile_features(single_${RELATIVE_SRC_FILE} PRIVATE cxx_std_11)
    set_property(TARGET single_${RELATIVE_SRC_FILE} PROPERTY CXX_INCLUDE_WHAT_YOU_USE "${iwyu_path_and_options}")
-    # remember binary for ci_single_binaries
+    # remember binary for ci_single_binaries target
    list(APPEND single_binaries single_${RELATIVE_SRC_FILE})
-    # json.hpp pulls together the whole library behind heavily templated, SFINAE-based code, and
-    # IWYU's suggestion for its one truly ambiguous symbol (a container-comparison "swap,
-    # operator!=") is not deterministic between runs (observed <set>, <unordered_map>, and <map>
-    # for the exact same source across otherwise-identical local and containerized builds). Keep
-    # reporting its diagnostics (informational, via CXX_INCLUDE_WHAT_YOU_USE above) but exclude it
-    # from the hard gate below so a fresh IWYU/compiler combination does not fail this target on a
-    # nondeterministic suggestion for a header that already re-exports everything on purpose.
-    if(NOT RELATIVE_SRC_FILE STREQUAL "json")
-        list(APPEND single_binaries_tus src_single/${RELATIVE_SRC_FILE}.cpp)
-    endif()
 endforeach()

-if(IWYU_TOOL_PY)
-    add_custom_target(ci_single_binaries
-        DEPENDS ${single_binaries}
-        COMMAND ${IWYU_TOOL_PY} -p ${PROJECT_BINARY_DIR} ${single_binaries_tus} -- ${iwyu_options}
-        COMMENT "Check if headers are self-contained"
-    )
-else()
-    # iwyu_tool.py (ships with IWYU, e.g. as /usr/bin/iwyu_tool on Debian/Ubuntu) was not found;
-    # fall back to building the self-containment check without enforcing the IWYU findings.
-    add_custom_target(ci_single_binaries
-        DEPENDS ${single_binaries}
-        COMMENT "Check if headers are self-contained"
-    )
-endif()
+add_custom_target(ci_single_binaries
+    DEPENDS ${single_binaries}
+    COMMENT "Check if headers are self-contained"
+)

 ###############################################################################
 # Benchmarks
@@ -646,41 +632,21 @@ add_custom_target(ci_benchmarks
 # we test the project with different CMake versions:
 # - CMake 3.5 (the earliest supported)
 # - CMake 3.31.6 (the latest 3.x release)
-# - CMake 4.0.0 (the first 4.x release)
-# - the CMake version running this build (usually the latest release)
+# - CMake 4.0.0 (the latest release)

 function(ci_get_cmake version var)
    set(${var} ${PROJECT_BINARY_DIR}/cmake-${version}/bin/cmake)
-    if(CMAKE_HOST_SYSTEM_NAME STREQUAL "Linux" AND CMAKE_HOST_SYSTEM_PROCESSOR MATCHES "^(x86_64|amd64)$")
-        # Kitware publishes a prebuilt Linux x86_64 archive for every release; unpacking it is far
-        # cheaper than compiling all of CMake (including its own test helpers) from source.
-        add_custom_command(
-            OUTPUT ${${var}}
-            COMMAND wget -nc https://github.com/Kitware/CMake/releases/download/v${version}/cmake-${version}-linux-x86_64.tar.gz
-            COMMAND wget -nc https://github.com/Kitware/CMake/releases/download/v${version}/cmake-${version}-SHA-256.txt
-            # verify the archive against Kitware's published SHA-256 sums before unpacking it
-            COMMAND sh -c "grep ' cmake-${version}-linux-x86_64[.]tar[.]gz$' cmake-${version}-SHA-256.txt | sha256sum -c -"
-            COMMAND tar xfz cmake-${version}-linux-x86_64.tar.gz
-            COMMAND rm cmake-${version}-linux-x86_64.tar.gz cmake-${version}-SHA-256.txt
-            COMMAND ${CMAKE_COMMAND} -E rm -rf cmake-${version}
-            COMMAND ${CMAKE_COMMAND} -E rename cmake-${version}-linux-x86_64 cmake-${version}
-            WORKING_DIRECTORY ${PROJECT_BINARY_DIR}
-            COMMENT "Download prebuilt CMake ${version}"
-        )
-    else()
-        # no prebuilt archive for this platform (e.g. macOS or Linux aarch64): build from source
-        add_custom_command(
-            OUTPUT ${${var}}
-            COMMAND wget -nc https://github.com/Kitware/CMake/releases/download/v${version}/cmake-${version}.tar.gz
-            COMMAND tar xfz cmake-${version}.tar.gz
-            COMMAND rm cmake-${version}.tar.gz
-            # -DCMAKE_POLICY_VERSION_MINIMUM=3.5 required to compile older CMake versions with CMake 4.0.0
-            COMMAND cmake -S cmake-${version} -B cmake-${version} -DCMAKE_POLICY_VERSION_MINIMUM=3.5
-            COMMAND cmake --build cmake-${version} --parallel 10
-            WORKING_DIRECTORY ${PROJECT_BINARY_DIR}
-            COMMENT "Download and build CMake ${version} from source"
-        )
-    endif()
+    add_custom_command(
+        OUTPUT ${${var}}
+        COMMAND wget -nc https://github.com/Kitware/CMake/releases/download/v${version}/cmake-${version}.tar.gz
+        COMMAND tar xfz cmake-${version}.tar.gz
+        COMMAND rm cmake-${version}.tar.gz
+        # -DCMAKE_POLICY_VERSION_MINIMUM=3.5 required to compile older CMake versions with CMake 4.0.0
+        COMMAND cmake -S cmake-${version} -B cmake-${version} -DCMAKE_POLICY_VERSION_MINIMUM=3.5
+        COMMAND cmake --build cmake-${version} --parallel 10
+        WORKING_DIRECTORY ${PROJECT_BINARY_DIR}
+        COMMENT "Download CMake ${version}"
+    )
    set(${var} ${${var}} PARENT_SCOPE)
 endfunction()

@@ -690,24 +656,30 @@ ci_get_cmake(4.0.0  CMAKE_4_0_0_BINARY)

 # the tests require CMake 3.13 or later, so they are excluded for CMake 3.5.0
 set(JSON_CMAKE_FLAGS_3_5_0 JSON_Diagnostics JSON_Diagnostic_Positions JSON_GlobalUDLs JSON_ImplicitConversions JSON_DisableEnumSerialization
-    JSON_LegacyDiscardedValueComparison JSON_Install JSON_MultipleHeaders JSON_SystemInclude JSON_Valgrind
-    JSON_StrictNulHandling)
-set(JSON_CMAKE_FLAGS_3_31_6 JSON_BuildTests ${JSON_CMAKE_FLAGS_3_5_0})
+    JSON_LegacyDiscardedValueComparison JSON_Install JSON_MultipleHeaders JSON_SystemInclude JSON_Valgrind)
+set(JSON_CMAKE_FLAGS_3_31_6 JSON_BuildTests ${JSON_CMAKE_FLAGS_3_31_6})
 set(JSON_CMAKE_FLAGS_4_0_0 JSON_BuildTests ${JSON_CMAKE_FLAGS_3_5_0})

 function(ci_add_cmake_flags_targets flag min_version)
    string(TOLOWER "ci_cmake_flag_${flag}" flag_target)
    string(REPLACE . _ min_version_var ${min_version})
    set(cmake_binary ${CMAKE_${min_version_var}_BINARY})
+    add_custom_target(${flag_target}_${min_version}_2
+        COMMENT "Check CMake flag ${flag} (CMake ${CMAKE_VERSION})"
+        COMMAND ${CMAKE_COMMAND}
+            -Werror=dev
+            -D${flag}=ON
+            -S${PROJECT_SOURCE_DIR} -B${PROJECT_BINARY_DIR}/build_${flag_target}
+    )
    add_custom_target(${flag_target}_${min_version_var}
-        COMMENT "Check CMake flag ${flag} (CMake ${min_version})"
+        COMMENT "Check CMake flag ${JSON_CMAKE_FLAG} (CMake ${min_version})"
        COMMAND mkdir -pv ${PROJECT_BINARY_DIR}/build_${flag_target}_${min_version_var}
        COMMAND cd ${PROJECT_BINARY_DIR}/build_${flag_target}_${min_version_var}
            && ${cmake_binary} -Werror=dev ${PROJECT_SOURCE_DIR} -D${flag}=ON
        DEPENDS ${cmake_binary}
    )
-    list(APPEND JSON_CMAKE_FLAG_TARGETS ${flag_target}_${min_version_var})
-    list(APPEND JSON_CMAKE_FLAG_BUILD_DIRS ${PROJECT_BINARY_DIR}/build_${flag_target}_${min_version_var})
+    list(APPEND JSON_CMAKE_FLAG_TARGETS ${JSON_CMAKE_FLAG_TARGET} ${flag_target}_${min_version_var})
+    list(APPEND JSON_CMAKE_FLAG_BUILD_DIRS ${PROJECT_BINARY_DIR}/build_${flag_target} ${PROJECT_BINARY_DIR}/build_${flag_target}_${min_version_var})
    set(JSON_CMAKE_FLAG_TARGETS ${JSON_CMAKE_FLAG_TARGETS} PARENT_SCOPE)
    set(JSON_CMAKE_FLAG_BUILD_DIRS ${JSON_CMAKE_FLAG_BUILD_DIRS} PARENT_SCOPE)
 endfunction()
@@ -724,20 +696,6 @@ foreach(JSON_CMAKE_FLAG ${JSON_CMAKE_FLAGS_4_0_0})
    ci_add_cmake_flags_targets(${JSON_CMAKE_FLAG} 4.0.0)
 endforeach()

-# check the same flags with the CMake version running this build
-foreach(JSON_CMAKE_FLAG ${JSON_CMAKE_FLAGS_4_0_0})
-    string(TOLOWER "ci_cmake_flag_${JSON_CMAKE_FLAG}" flag_target)
-    add_custom_target(${flag_target}
-        COMMENT "Check CMake flag ${JSON_CMAKE_FLAG} (CMake ${CMAKE_VERSION})"
-        COMMAND ${CMAKE_COMMAND}
-            -Werror=dev
-            -D${JSON_CMAKE_FLAG}=ON
-            -S${PROJECT_SOURCE_DIR} -B${PROJECT_BINARY_DIR}/build_${flag_target}
-    )
-    list(APPEND JSON_CMAKE_FLAG_TARGETS ${flag_target})
-    list(APPEND JSON_CMAKE_FLAG_BUILD_DIRS ${PROJECT_BINARY_DIR}/build_${flag_target})
-endforeach()
-
 add_custom_target(ci_cmake_flags
    DEPENDS ${JSON_CMAKE_FLAG_TARGETS}
    COMMENT "Check CMake flags"
@@ -896,6 +854,6 @@ add_custom_target(ci_test_build_documentation
 ###############################################################################

 add_custom_target(ci_clean
-    COMMAND rm -fr ${PROJECT_BINARY_DIR}/build_* ${PROJECT_BINARY_DIR}/cmake-3.5.0 ${PROJECT_BINARY_DIR}/cmake-3.31.6 ${PROJECT_BINARY_DIR}/cmake-4.0.0 ${JSON_CMAKE_FLAG_BUILD_DIRS} ${single_binaries}
+    COMMAND rm -fr ${PROJECT_BINARY_DIR}/build_* cmake-3.5.0-Darwin64 ${JSON_CMAKE_FLAG_BUILD_DIRS} ${single_binaries}
    COMMENT "Clean generated directories"
 )
@@ -48,6 +48,7 @@ cc_library(
    name = "singleheader-json",
    hdrs = [
        "single_include/nlohmann/json.hpp",
+        "single_include/nlohmann/json_fwd.hpp",
    ],
    includes = ["single_include"],
    visibility = ["//visibility:public"],
@@ -64,7 +64,7 @@ if(MODE STREQUAL "undef")
    # recipe is self-contained and its output is byte-stable across reruns.
    # The embedded SPDX tags below are part of the *generated* file's
    # content, not a REUSE header for this .cmake script itself (which is
-    # already covered by the blanket "Files: *" rule in .reuse/dep5) -- keep
+    # already covered by the blanket path = "**" rule in REUSE.toml) -- keep
    # them wrapped in REUSE-IgnoreStart/End so `reuse lint` does not try to
    # parse "MIT\n")" as this file's own SPDX-License-Identifier value.
    # REUSE-IgnoreStart
@@ -11,31 +11,20 @@ EXAMPLES = $(wildcard mkdocs/docs/examples/*.cpp)

 cxx_standard = $(lastword c++11 $(filter c++%, $(subst ., ,$1)))

-# common compile flags for the stand-alone example files
-EXAMPLE_CPPFLAGS = -I $(SRCDIR) -DJSON_USE_GLOBAL_UDLS=0
-EXAMPLE_WARNFLAGS = -Werror=deprecated-declarations
-
-# examples that document deprecated API and are allowed to use it
-DEPRECATED_EXAMPLES = $(addprefix mkdocs/docs/examples/, \
-	json_pointer__operator__equal_stringtype \
-	json_pointer__operator__notequal_stringtype \
-	json_pointer__operator_string_t)
-$(DEPRECATED_EXAMPLES:=.output) $(DEPRECATED_EXAMPLES:=.test): EXAMPLE_WARNFLAGS = -Wno-deprecated-declarations
-
 # create output from a stand-alone example file
 %.output: %.cpp
-	@echo "standard $(call cxx_standard,$(<:.cpp=))"
+	@echo "standard $(call cxx_standard $(<:.cpp=))"
 	$(MAKE) $(<:.cpp=) \
-		CPPFLAGS="$(EXAMPLE_CPPFLAGS)" \
-		CXXFLAGS="-std=$(call cxx_standard,$(<:.cpp=)) $(EXAMPLE_WARNFLAGS)"
+		CPPFLAGS="-I $(SRCDIR) -DJSON_USE_GLOBAL_UDLS=0" \
+		CXXFLAGS="-std=$(call cxx_standard,$(<:.cpp=)) -Wno-deprecated-declarations"
 	./$(<:.cpp=) > $@
 	rm $(<:.cpp=)

 # compare created output with current output of the example files
 %.test: %.cpp
 	$(MAKE) $(<:.cpp=) \
-		CPPFLAGS="$(EXAMPLE_CPPFLAGS)" \
-		CXXFLAGS="-std=$(call cxx_standard,$(<:.cpp=)) $(EXAMPLE_WARNFLAGS)"
+		CPPFLAGS="-I $(SRCDIR) -DJSON_USE_GLOBAL_UDLS=0" \
+		CXXFLAGS="-std=$(call cxx_standard,$(<:.cpp=)) -Wno-deprecated-declarations"
 	./$(<:.cpp=) > $@
 	diff $@ $(<:.cpp=.output)
 	rm $(<:.cpp=) $@
@@ -13,7 +13,7 @@
    <key>dashIndexFilePath</key>
    <string>index.html</string>
    <key>DashDocSetFallbackURL</key>
-    <string>https://json.nlohmann.me/</string>
+    <string>https://nlohmann.github.io/json/</string>
    <key>isJavaScriptEnabled</key>
    <true/>
 </dict>
@@ -52,25 +52,35 @@ install_docset_zeal: JSON_for_Modern_C++.docset
 	mkdir -p $$docset_root; \
 	cp -r JSON_for_Modern_C++.docset $$docset_root/

-# both targets below compare the docset search index with the mkdocs page
-# set. They share the same normalization (docs/foo/index.md and
-# docs/foo.md both become foo/index.html, the URL mkdocs itself would
-# give the page; the top-level index.md is excluded, as it is not part
-# of the hand-curated docSet.sql) and use comm(1) on two sorted lists
-# instead of running a sqlite3 query, or an O(n*m) nested shell loop,
-# once per page.
-DOCSET_INDEX_PATHS=$(shell sqlite3 docSet.dsidx "SELECT DISTINCT path FROM searchIndex" | sort)
-DOCSET_PAGE_PATHS=$(shell echo '$(MKDOCS_PAGES)' | tr ' ' '\n' | grep -v '^index\.md$$' | $(SED) -E 's@/index\.md$$@/index.html@; s@\.md$$@/index.html@' | sort)
-
 # list mkdocs pages missing from the docset index
 .PHONY: list_missing_pages
 list_missing_pages: docSet.dsidx
-	@comm -23 <(echo '$(DOCSET_PAGE_PATHS)' | tr ' ' '\n') <(echo '$(DOCSET_INDEX_PATHS)' | tr ' ' '\n')
+	@for page in $(MKDOCS_PAGES); do \
+		case "$$page" in \
+			*/index.md) path=$${page/\/index.md/} ;; \
+			*)          path=$${page/.md/}        ;; \
+		esac; \
+		if [ "x$$page" != "xindex.md" -a "x$$(sqlite3 docSet.dsidx "SELECT COUNT(*) FROM searchIndex WHERE path='$$path/index.html'")" = "x0" ]; then \
+			echo $$page; \
+		fi \
+	done

 # list paths in the docset index without a corresponding mkdocs page
 .PHONY: list_removed_paths
 list_removed_paths: docSet.dsidx
-	@comm -13 <(echo '$(DOCSET_PAGE_PATHS)' | tr ' ' '\n') <(echo '$(DOCSET_INDEX_PATHS)' | tr ' ' '\n')
+	@for path in $$(sqlite3 docSet.dsidx "SELECT path FROM searchIndex"); do \
+		page=$${path/\/index.html/.md}; \
+		page_index=$${path/index.html/index.md}; \
+		page_found=0; \
+		for p in $(MKDOCS_PAGES); do \
+			if [ "x$$p" = "x$$page" -o "x$$p" = "x$$page_index" ]; then \
+				page_found=1; \
+			fi \
+		done; \
+		if [ "x$$page_found" = "x0" ]; then \
+			echo $$path; \
+		fi \
+	done

 .PHONY: clean
 clean:
@@ -7,11 +7,10 @@ documentation browsers like [Dash](https://kapeli.com/dash), [Velocity](https://
 The docset can be created with

 ```sh
-make JSON_for_Modern_C++.docset
+make nlohmann_json.docset
 ```

-The generated folder `JSON_for_Modern_C++.docset` can then be opened in the documentation browser. `make all` builds a
-`JSON_for_Modern_C++.tgz` archive instead, and `make install_docset_zeal` installs the docset for Zeal directly.
+The generated folder `nlohmann_json.docset` can then be opened in the documentation browser.

 A recent version is also part of the [Dash user contributions](https://github.com/Kapeli/Dash-User-Contributions/tree/master/docsets/JSON_for_Modern_C%2B%2B).

@@ -210,7 +210,6 @@ INSERT INTO searchIndex(name, type, path) VALUES ('JSON_CATCH_USER', 'Macro', 'a
 INSERT INTO searchIndex(name, type, path) VALUES ('JSON_DIAGNOSTICS', 'Macro', 'api/macros/json_diagnostics/index.html');
 INSERT INTO searchIndex(name, type, path) VALUES ('JSON_DIAGNOSTIC_POSITIONS', 'Macro', 'api/macros/json_diagnostic_positions/index.html');
 INSERT INTO searchIndex(name, type, path) VALUES ('JSON_DISABLE_ENUM_SERIALIZATION', 'Macro', 'api/macros/json_disable_enum_serialization/index.html');
-INSERT INTO searchIndex(name, type, path) VALUES ('JSON_DISABLE_TUPLE_REFERENCE_CONVERSION', 'Macro', 'api/macros/json_disable_tuple_reference_conversion/index.html');
 INSERT INTO searchIndex(name, type, path) VALUES ('JSON_HAS_CPP_11', 'Macro', 'api/macros/json_has_cpp_11/index.html');
 INSERT INTO searchIndex(name, type, path) VALUES ('JSON_HAS_CPP_14', 'Macro', 'api/macros/json_has_cpp_11/index.html');
 INSERT INTO searchIndex(name, type, path) VALUES ('JSON_HAS_CPP_17', 'Macro', 'api/macros/json_has_cpp_11/index.html');
@@ -139,8 +139,8 @@ basic_json(basic_json&& other) noexcept;

    - In case of a `#!json null` type, [invalid_iterator.206](../../home/exceptions.md#jsonexceptioninvalid_iterator206)
      is thrown.
-    - In case of other primitive types (number, boolean, string, or binary), `first` must be `begin()` and `last`
-      must be `end()`. In this case, the value is copied. Otherwise,
+    - In case of other primitive types (number, boolean, or string), `first` must be `begin()` and `last` must be
+      `end()`. In this case, the value is copied. Otherwise,
      [`invalid_iterator.204`](../../home/exceptions.md#jsonexceptioninvalid_iterator204) is thrown.
    - In case of structured types (array, object), the constructor behaves as similar versions for `std::vector` or
      `std::map`; that is, a JSON array or object is constructed from the values in the range.
@@ -159,8 +159,6 @@ basic_json(basic_json&& other) noexcept;
    - `CompatibleType` is not `basic_json` (to avoid hijacking copy/move constructors),
    - `CompatibleType` is not a different `basic_json` type (i.e. with different template arguments)
    - `CompatibleType` is not a `basic_json` nested type (e.g., `json_pointer`, `iterator`, etc.)
-    - if [`JSON_DISABLE_TUPLE_REFERENCE_CONVERSION`](../macros/json_disable_tuple_reference_conversion.md) is defined
-      to `1`: `CompatibleType` is not a one-element `std::tuple` holding a reference to `basic_json`
    - `json_serializer<U>` (with `U = uncvref_t<CompatibleType>`) has a `to_json(basic_json_t&, CompatibleType&&)`
       method

@@ -244,8 +242,8 @@ basic_json(basic_json&& other) noexcept;
      and `last` are not compatible (i.e., do not belong to the same JSON value). In this case, the range
      `[first, last)` is undefined.
    - Throws [`invalid_iterator.204`](../../home/exceptions.md#jsonexceptioninvalid_iterator204) if iterators `first`
-      and `last` belong to a primitive type (number, boolean, string, or binary), but `first` does not point to the
-      first element anymore. In this case, the range `[first, last)` is undefined. See the example code below.
+      and `last` belong to a primitive type (number, boolean, or string), but `first` does not point to the first
+      element anymore. In this case, the range `[first, last)` is undefined. See the example code below.
    - Throws [`invalid_iterator.206`](../../home/exceptions.md#jsonexceptioninvalid_iterator206) if iterators `first`
      and `last` belong to a `#!json null` value. In this case, the range `[first, last)` is undefined.
 8. (none)
@@ -425,8 +423,6 @@ basic_json(basic_json&& other) noexcept;
 4. Since version 3.2.0.
 5. Since version 1.0.0.
 6. Since version 1.0.0.
-7. Since version 1.0.0. Fixed in version 3.13.0 to also check the iterator range for binary values; before, a range
-   that did not cover the whole value (such as `(end(), end())`) was accepted and the whole binary value was copied,
-   unlike the other primitive types.
+7. Since version 1.0.0.
 8. Since version 1.0.0.
 9. Since version 1.0.0.
@@ -7,15 +7,15 @@ void clear() noexcept;
 Clears the content of a JSON value and resets it to the default value as if [`basic_json(value_t)`](basic_json.md) would
 have been called with the current value type from [`type()`](type.md):

-| Value type | initial value                           |
-|------------|-----------------------------------------|
-| null       | `null`                                  |
-| boolean    | `false`                                 |
-| string     | `""`                                    |
-| number     | `0`                                     |
-| binary     | An empty byte vector with no subtype    |
-| object     | `{}`                                    |
-| array      | `[]`                                    |
+| Value type | initial value        |
+|------------|----------------------|
+| null       | `null`               |
+| boolean    | `false`              |
+| string     | `""`                 |
+| number     | `0`                  |
+| binary     | An empty byte vector |
+| object     | `{}`                 |
+| array      | `[]`                 |

 Has the same effect as calling

@@ -56,4 +56,3 @@ All iterators, pointers, and references related to this container are invalidate

 - Added in version 1.0.0.
 - Added support for binary types in version 3.8.0.
- Fixed in version 3.13.0 to also clear the subtype of a binary value; before, the subtype was left unchanged.
@@ -58,10 +58,6 @@ Logarithmic in the size of the JSON object.

 - This method always returns `#!cpp false` when executed on a JSON type that is not an object.
 - This method can be executed on any JSON value type.
- Calling this function with an integer argument (for example, `#!cpp contains(0)`) does not compile: such an argument
-  would otherwise implicitly convert to a null `#!cpp const char*` and, from there, cause undefined behavior when
-  constructing a `#!cpp std::string` for the object key. To check for an array element instead, use [`at`](at.md),
-  [`operator[]`](operator%5B%5D.md), or compare against [`size`](size.md).

 !!! info "Postconditions"

@@ -121,5 +117,3 @@ Logarithmic in the size of the JSON object.
 1. Added in version 3.11.0.
 2. Added in version 3.6.0. Extended template `KeyType` to support comparable types in version 3.11.0.
 3. Added in version 3.7.0.
-4. Deleted overloads for integral key types added in version 3.13.0 to reject such calls at compile time instead of
-   causing undefined behavior at runtime.
@@ -40,11 +40,7 @@ Logarithmic in the size of the JSON object.

 ## Notes

- This method always returns `0` when executed on a JSON type that is not an object.
- Calling this function with an integer argument (for example, `#!cpp count(0)`) does not compile: such an argument
-  would otherwise implicitly convert to a null `#!cpp const char*` and, from there, cause undefined behavior when
-  constructing a `#!cpp std::string` for the object key. To check for an array element instead, use [`at`](at.md),
-  [`operator[]`](operator%5B%5D.md), or compare against [`size`](size.md).
+This method always returns `0` when executed on a JSON type that is not an object.

 ## Examples

@@ -85,5 +81,3 @@ Logarithmic in the size of the JSON object.

 1. Added in version 3.11.0.
 2. Added in version 1.0.0. Changed parameter `key` type to `KeyType&&` in version 3.11.0.
-3. Deleted overload for integral key types added in version 3.13.0 to reject such calls at compile time instead of
-   causing undefined behavior at runtime.
@@ -44,11 +44,7 @@ Logarithmic in the size of the JSON object.

 ## Notes

- This method always returns `end()` when executed on a JSON type that is not an object.
- Calling this function with an integer argument (for example, `#!cpp find(0)`) does not compile: such an argument
-  would otherwise implicitly convert to a null `#!cpp const char*` and, from there, cause undefined behavior when
-  constructing a `#!cpp std::string` for the object key. To access an array element instead, use [`at`](at.md),
-  [`operator[]`](operator%5B%5D.md), or compare against [`size`](size.md).
+This method always returns `end()` when executed on a JSON type that is not an object.

 ## Examples

@@ -89,5 +85,3 @@ Logarithmic in the size of the JSON object.

 1. Added in version 3.11.0.
 2. Added in version 1.0.0. Changed to support comparable types in version 3.11.0.
-3. Deleted overloads for integral key types added in version 3.13.0 to reject such calls at compile time instead of
-   causing undefined behavior at runtime.
@@ -195,7 +195,5 @@ Strong exception safety: if an exception occurs, the original value stays intact
 1. Added in version 1.0.0.
 2. Added in version 1.0.0.
 3. Added in version 1.0.0.
-4. Added in version 1.0.0. Fixed in version 3.13.0 to copy the values before inserting; before, an `ilist` that
-   referred to elements of the array being inserted into could insert wrong values, because the range insert could
-   move from or shift an element before it was copied.
+4. Added in version 1.0.0.
 5. Added in version 3.0.0.
@@ -37,12 +37,6 @@ Thereby, `Target` is the current object; that is, the patch is applied to the cu

 Linear in the lengths of `apply_patch`.

-## Notes
-
-`apply_patch` may be `#!cpp *this` itself or refer to a value contained in `#!cpp *this` (for example, a subobject
-returned by `#!cpp (*this)[key]`); it is read as it was when `merge_patch()` was called, before any modification of
-`#!cpp *this`.
-
 ## Examples

 ??? example
@@ -67,5 +61,3 @@ returned by `#!cpp (*this)[key]`); it is read as it was when `merge_patch()` was
 ## Version history

 - Added in version 3.0.0.
- Fixed use of freed or relocated memory when `apply_patch` is `#!cpp *this` or refers to a value contained in
-  `#!cpp *this`, in version 3.13.0.
@@ -51,7 +51,7 @@ range will yield over/underflow when used in a constructor. During deserializati
 will automatically be stored as [`number_unsigned_t`](number_unsigned_t.md) or [`number_float_t`](number_float_t.md).

 [RFC 8259](https://tools.ietf.org/html/rfc8259) further states:
-> Note that when such software is used, numbers that are integers and are in the range [-2<sup>53</sup>+1, 2<sup>53</sup>-1] are
+> Note that when such software is used, numbers that are integers and are in the range $[-2^{53}+1, 2^{53}-1]$ are
 > interoperable in the sense that implementations will agree exactly on their numeric values.

 As this range is a subrange of the exactly supported range [INT64_MIN, INT64_MAX], this class's integer type is
@@ -52,7 +52,7 @@ when used in a constructor. During deserialization, too large or small integer n
 as [`number_integer_t`](number_integer_t.md) or [`number_float_t`](number_float_t.md).

 [RFC 8259](https://tools.ietf.org/html/rfc8259) further states:
-> Note that when such software is used, numbers that are integers and are in the range [-2<sup>53</sup>+1, 2<sup>53</sup>-1] are
+> Note that when such software is used, numbers that are integers and are in the range $[-2^{53}+1, 2^{53}-1]$ are
 > interoperable in the sense that implementations will agree exactly on their numeric values.

 As this range is a subrange (when considered in conjunction with the `number_integer_t` type) of the exactly supported
@@ -70,9 +70,6 @@ Strong exception safety: if an exception occurs, the original value stays intact
 1. The function can throw the following exceptions:
    - Throws [`type_error.305`](../../home/exceptions.md#jsonexceptiontype_error305) if the JSON value is not an array
      or null; in that case, using the `[]` operator with an index makes no sense.
-    - Throws `#!cpp std::length_error` if `idx` equals the maximum value of `size_type`; the array is left unchanged.
-      (This is the one index for which growing the array to hold it cannot be expressed as a `size_type` size, the same
-      way an oversized [`resize`](https://en.cppreference.com/w/cpp/container/vector/resize) throws.)
 2. The function can throw the following exceptions:
    - Throws [`type_error.305`](../../home/exceptions.md#jsonexceptiontype_error305) if the JSON value is not an object
      or null; in that case, using the `[]` operator with a key makes no sense.
@@ -260,8 +257,7 @@ Strong exception safety: if an exception occurs, the original value stays intact

 ## Version history

-1. Added in version 1.0.0. Fixed in version 3.13.0 to throw `#!cpp std::length_error` instead of emptying the array and
-   accessing it out of bounds when `idx` equals the maximum value of `size_type`.
+1. Added in version 1.0.0.
 2. Added in version 1.0.0. Added overloads for `T* key` in version 1.1.0. Removed overloads for `T* key` (replaced by 3)
   in version 3.11.0.
 3. Added in version 3.11.0. Fixed in version 3.13.0 to consistently accept `std::string_view`-convertible keys, as
@@ -88,12 +88,7 @@ Strong guarantee: if an exception is thrown, there are no changes in the JSON va
 ## Exceptions

 - Throws [`parse_error.101`](../../home/exceptions.md#jsonexceptionparse_error101) in case of an unexpected token, or
-  empty input like a null `FILE*` or `char*` pointer, or an `std::istream` without a stream buffer
-  (`#!cpp i.rdbuf() == nullptr`, for instance `#!cpp std::istream(nullptr)`).
- If reading from an `std::istream` reaches the end of the input and `eofbit` is part of the stream's
-  [`exceptions()`](https://en.cppreference.com/w/cpp/io/basic_ios/exceptions) mask, the `std::ios_base::failure`
-  thrown by the stream itself propagates instead of a `parse_error`, the same as it would for the standard library's
-  own extraction operators.
+  empty input like a null `FILE*` or `char*` pointer.

 ## Complexity

@@ -259,8 +254,6 @@ outside of a string, invalid) byte; see the [FAQ entry](../../home/faq.md#nul-by
 - Extended overload (2) to accept heterogeneous iterator+sentinel pairs (C++20 ranges support) in version 3.13.0.
 - `JSON_STRICT_NUL_HANDLING` added in version 3.13.0 to optionally reject a NUL byte in the input instead of treating
  it as end of input; planned to become the default in version 4.0.0.
- Extended empty-input detection to also cover an `std::istream` without a stream buffer, and fixed a crash
-  (`std::terminate`) when parsing from an `std::istream` with `eofbit` in its exception mask, in version 3.13.0.

 !!! warning "Deprecation"

@@ -54,7 +54,7 @@ classDiagram

 ## Notes

-For an input with <i>n</i> bytes, 1 is the index of the first character and <i>n</i>+1 is the index of the terminating null byte
+For an input with $n$ bytes, 1 is the index of the first character and $n+1$ is the index of the terminating null byte
 or the end of file. This also holds true when reading a byte vector for binary formats.

 ## Examples
@@ -100,6 +100,3 @@ the latter case, it is skipped completely, or replaced by `null` if it is the to
 - Added in version 1.0.0.
 - Fixed in version 3.13.0 to also remove discarded values from a parent object; before, discarding an array or a value
  stored under an object key left a discarded member behind, which made the parse result serialize to invalid JSON.
- Fixed in version 3.13.0 so that discarding an array or object at its start event also hides its content from the
-  callback, as documented above; before, the callback was still called for the content, and the key of every member of
-  a discarded object was kept in memory until the parse ended.
@@ -6,9 +6,7 @@ void swap(reference other) noexcept (
    std::is_nothrow_move_constructible<value_t>::value &&
    std::is_nothrow_move_assignable<value_t>::value &&
    std::is_nothrow_move_constructible<json_value>::value &&
-    std::is_nothrow_move_assignable<json_value>::value &&
-    std::is_nothrow_move_constructible<json_base_class_t>::value &&
-    std::is_nothrow_move_assignable<json_base_class_t>::value
+    std::is_nothrow_move_assignable<json_value>::value
 );

 // (2)
@@ -16,9 +14,7 @@ friend void swap(reference left, reference right) noexcept (
    std::is_nothrow_move_constructible<value_t>::value &&
    std::is_nothrow_move_assignable<value_t>::value &&
    std::is_nothrow_move_constructible<json_value>::value &&
-    std::is_nothrow_move_assignable<json_value>::value &&
-    std::is_nothrow_move_constructible<json_base_class_t>::value &&
-    std::is_nothrow_move_assignable<json_base_class_t>::value
+    std::is_nothrow_move_assignable<json_value>::value
 );

 // (3)
@@ -41,15 +37,11 @@ void swap(typename binary_t::container_type& other);
   individual elements. All iterators and references remain valid. The past-the-end iterator is invalidated. If macro
   [`JSON_DIAGNOSTIC_POSITIONS`](../macros/json_diagnostic_positions.md) is defined to `#!cpp 1`, the
   [`start_pos()`](start_pos.md)/[`end_pos()`](end_pos.md) diagnostic positions are exchanged along with the value.
-   The [`json_base_class_t`](json_base_class_t.md) subobject is exchanged along with the value as well, the same way it
-   is copied or moved by the copy/move constructors and assignment operators.
 2. Exchanges the contents of the JSON value from `left` with those of `right`. Does not invoke any move, copy, or swap
   operations on individual elements. All iterators and references remain valid. The past-the-end iterator is
   invalidated. Implemented as a friend function callable via ADL. If macro
   [`JSON_DIAGNOSTIC_POSITIONS`](../macros/json_diagnostic_positions.md) is defined to `#!cpp 1`, the
   [`start_pos()`](start_pos.md)/[`end_pos()`](end_pos.md) diagnostic positions are exchanged along with the value.
-   The [`json_base_class_t`](json_base_class_t.md) subobject is exchanged along with the value as well, the same way it
-   is copied or moved by the copy/move constructors and assignment operators.
 3. Exchanges the contents of a JSON array with those of `other`. Does not invoke any move, copy, or swap operations on
   individual elements. All iterators and references remain valid. The past-the-end iterator is invalidated. 
 4. Exchanges the contents of a JSON object with those of `other`. Does not invoke any move, copy, or swap operations on
@@ -172,8 +164,8 @@ Constant.

 ## Version history

-1. Since version 1.0.0. Exchanges the `json_base_class_t` subobject along with the value since version 3.13.0.
-2. Since version 1.0.0. Exchanges the `json_base_class_t` subobject along with the value since version 3.13.0.
+1. Since version 1.0.0.
+2. Since version 1.0.0.
 3. Since version 1.0.0.
 4. Since version 1.0.0.
 5. Since version 1.0.0.
@@ -43,9 +43,6 @@ Strong guarantee: if an exception is thrown, there are no changes in the JSON va
 - Throws [`out_of_range.412`](../../home/exceptions.md#jsonexceptionout_of_range412) if the length of a document, array,
  string, or binary value exceeds the range of the 32-bit BSON length field; example:
  `"BSON length 2147483661 exceeds maximum of 2147483647"`
- Throws [`out_of_range.415`](../../home/exceptions.md#jsonexceptionout_of_range415) if the subtype of a binary value
-  exceeds 255, the maximum of the BSON binary subtype; example:
-  `"subtype 70000 is too large for the BSON binary subtype (max 255)"`

 ## Complexity

@@ -81,4 +78,3 @@ pass before anything is written.

 - Added in version 3.4.0.
 - Linear in the size of `j`, and no longer limited by the call stack for deeply nested values, since version 3.13.0.
- `out_of_range.415` is now detected before anything is written, like the other exceptions above, since version 3.13.0.
@@ -76,6 +76,3 @@ Linear in the size of the JSON value `j`.

 - Added in version 2.0.9.
 - Throws `out_of_range.412` and `out_of_range.415` since version 3.13.0.
- Fixed in version 3.13.0 to serialize `number_integer_t`/`number_unsigned_t` pairs of different width correctly;
-  before, integers could be serialized with the wrong value if `number_integer_t` was narrower than
-  `number_unsigned_t`.
@@ -59,12 +59,6 @@ Basic guarantee: if an exception is thrown during the operation, the JSON value
 1. O(N*log(size() + N)), where N is the number of elements to insert.
 2. O(N*log(size() + N)), where N is the number of elements to insert.

-## Notes
-
-The argument `j` (or, for overload (2), the range `[first, last)`) may be `#!cpp *this` itself or refer to a value
-contained in `#!cpp *this` (for example, a subobject returned by `#!cpp (*this)[key]`); it is read as it was when
-`update()` was called, before any modification of `#!cpp *this`.
-
 ## Examples

 ??? example
@@ -161,5 +155,3 @@ contained in `#!cpp *this` (for example, a subobject returned by `#!cpp (*this)[

 - Added in version 3.0.0.
 - Added `merge_objects` parameter in 3.10.5.
- Fixed use of freed or relocated memory when the argument is `#!cpp *this` or refers to a value contained in
-  `#!cpp *this`, in version 3.13.0.
@@ -52,14 +52,6 @@ This is equivalent to Python's `dict.get(key, default)`.
    - Unlike [`operator[]`](operator[].md), this function does not implicitly add an element to the position defined by
     `key`/`ptr` key. This function is furthermore also applicable to const objects.

-!!! note "Integer keys"
-
-    Calling this function with an integer `key` argument (for example, `#!cpp value(0, 1)`) does not compile in
-    C++11, where `object_comparator_t` is not transparent: such an argument would otherwise implicitly convert to a
-    null `#!cpp const char*` and, from there, cause undefined behavior when constructing a `#!cpp std::string` for the
-    object key. To access an array element with a default value, use [`at`](at.md) together with a `#!cpp try`/`#!cpp
-    catch` block, or compare against [`size`](size.md) instead.
-
 ## Template parameters

 `KeyType`
@@ -192,9 +184,7 @@ changes to any JSON value.

 ## Version history

-1. Added in version 1.0.0. Changed parameter `default_value` type from `const ValueType&` to `ValueType&&` in version
-   3.11.0. Deleted overload for integral key types added in version 3.13.0 to reject such calls at compile time
-   instead of causing undefined behavior at runtime.
+1. Added in version 1.0.0. Changed parameter `default_value` type from `const ValueType&` to `ValueType&&` in version 3.11.0.
 2. Added in version 3.11.0. Made `ValueType` the first template parameter in version 3.11.2.
 3. Added in version 2.0.2. Extended to work with arrays in version 3.13.0, including fixing an issue where resolving
   `ptr` through an array unexpectedly threw `out_of_range` instead of returning the resolved element (or
@@ -28,7 +28,6 @@ header. See also the [macro overview page](../../features/macros.md).
 - [**JSON_HAS_RANGES**](json_has_ranges.md) - control `std::ranges` support
 - [**JSON_HAS_STD_FORMAT**](json_has_std_format.md) - control `std::format`/`std::formatter` support
 - [**JSON_HAS_THREE_WAY_COMPARISON**](json_has_three_way_comparison.md) - control 3-way comparison support
- [**JSON_NO_AUTOMATIC_UDLS**](json_no_automatic_udls.md) - do not include the user-defined string literals (UDLs) automatically
 - [**JSON_NO_IO**](json_no_io.md) - switch off functions relying on certain C++ I/O headers
 - [**JSON_NO_THREAD_LOCAL**](json_no_thread_local.md) - switch off the use of `thread_local` storage
 - [**JSON_SKIP_UNSUPPORTED_COMPILER_CHECK**](json_skip_unsupported_compiler_check.md) - do not warn about unsupported compilers
@@ -53,7 +52,6 @@ header. See also the [macro overview page](../../features/macros.md).

 - [**JSON_BRACE_INIT_COPY_SEMANTICS**](json_brace_init_copy_semantics.md) - opt in to copy/move semantics for single-element brace initialization
 - [**JSON_DISABLE_ENUM_SERIALIZATION**](json_disable_enum_serialization.md) - switch off default serialization/deserialization functions for enums
- [**JSON_DISABLE_TUPLE_REFERENCE_CONVERSION**](json_disable_tuple_reference_conversion.md) - switch off conversion from a one-element tuple of a JSON reference
 - [**JSON_USE_IMPLICIT_CONVERSIONS**](json_use_implicit_conversions.md) - control implicit conversions

 ## Comparison behavior
@@ -1,114 +0,0 @@
-# JSON_DISABLE_TUPLE_REFERENCE_CONVERSION
-
-```cpp
-#define JSON_DISABLE_TUPLE_REFERENCE_CONVERSION /* value */
-```
-
-When defined to `1`, a `basic_json` value can no longer be constructed from a one-element `std::tuple` whose element is
-a reference to that `basic_json` type, such as `std::tuple<json&>`, `std::tuple<const json&>`, or `std::tuple<json&&>`.
-These are the tuples created by `std::forward_as_tuple(j)`.
-
-## Default definition
-
-The default value is `0` (disabled — existing behavior is preserved).
-
-```cpp
-#define JSON_DISABLE_TUPLE_REFERENCE_CONVERSION 0
-```
-
-## Notes
-
-!!! note "Background"
-
-    By default, `basic_json` can be constructed from any `std::tuple` whose elements can be converted to JSON; the result
-    is an array. This includes `std::tuple<json&>`, which becomes a one-element array.
-
-    `std::tuple` only converts another tuple element by element if its element type cannot be constructed from the whole
-    source tuple. Because `json` *can* be constructed from `std::tuple<json&>`, `std::tuple` instead converts the whole
-    tuple into a single `json` value. This has two surprising effects:
-
-    ```cpp
-    json j = true;
-
-    // rejected by some standard libraries (e.g., libc++); with others, the
-    // reference binds to a temporary that is destroyed right away
-    std::tuple<const json&> t1(std::forward_as_tuple(j));
-
-    // compiles, but std::get<0>(t2) is [true], not true
-    std::tuple<json> t2(std::forward_as_tuple(j));
-    ```
-
-    Enabling this macro removes the conversion, so both tuples are converted element by element: `std::get<0>(t1)`
-    refers to `j`, and `std::get<0>(t2)` is a copy of `j` (see [#2226](https://github.com/nlohmann/json/issues/2226)).
-
-!!! warning "Opt-in only"
-
-    This macro must be defined **before** including `<nlohmann/json.hpp>`. Defining it after the include has no effect.
-
-!!! note "Affected conversions"
-
-    Only one-element tuples holding a reference to the **same** `basic_json` type are affected. Constructing a JSON value
-    from them no longer compiles:
-
-    ```cpp
-    json j = true;
-    json a = std::forward_as_tuple(j);  // error with the macro enabled
-    json b = json::array({j});          // use this instead: [true]
-    ```
-
-    Tuples holding a JSON value (`std::make_tuple(j)`), tuples with more than one element, and tuples holding references
-    to other types (including other `basic_json` specializations) are converted to arrays as before.
-
-!!! hint "CMake option"
-
-    This behavior can also be controlled with the CMake option
-    [`JSON_DisableTupleReferenceConversion`](../../integration/cmake.md#json_disabletuplereferenceconversion)
-    (`OFF` by default) which defines `JSON_DISABLE_TUPLE_REFERENCE_CONVERSION` accordingly.
-
-## Examples
-
-??? example "Default behavior (macro not defined)"
-
-    ```cpp
-    #include <nlohmann/json.hpp>
-
-    using json = nlohmann::json;
-
-    int main()
-    {
-        json j = true;
-
-        std::tuple<json> t(std::forward_as_tuple(j));
-        // std::get<0>(t) is [true] -- the whole tuple was converted
-    }
-    ```
-
-??? example "Conversion disabled (macro defined to 1)"
-
-    ```cpp
-    #define JSON_DISABLE_TUPLE_REFERENCE_CONVERSION 1
-    #include <nlohmann/json.hpp>
-
-    using json = nlohmann::json;
-
-    int main()
-    {
-        json j = true;
-
-        std::tuple<json> t(std::forward_as_tuple(j));
-        // std::get<0>(t) is true -- a copy of j
-
-        std::tuple<const json&> r(std::forward_as_tuple(j));
-        // std::get<0>(r) refers to j
-    }
-    ```
-
-## See also
-
- [**basic_json(CompatibleType&&)**](../basic_json/basic_json.md) - the affected constructor
- [:simple-cmake: JSON_DisableTupleReferenceConversion](../../integration/cmake.md#json_disabletuplereferenceconversion) -
-  CMake option to control the macro
-
-## Version history
-
- Added in version 3.13.0.
@@ -1,68 +0,0 @@
-# JSON_NO_AUTOMATIC_UDLS
-
-```cpp
-#define JSON_NO_AUTOMATIC_UDLS
-```
-
-When defined, `<nlohmann/json.hpp>` does not include `<nlohmann/json_literals.hpp>`, so the user-defined string
-literals [`operator""_json`](../operator_literal_json.md) and
-[`operator""_json_pointer`](../operator_literal_json_pointer.md) are not declared. Include
-`<nlohmann/json_literals.hpp>` in the files that use them.
-
-The literals are ordinary inline functions whose bodies call the parser, so every translation unit that includes them
-instantiates the parser — even if it never parses anything itself. Defining `JSON_NO_AUTOMATIC_UDLS` for a whole project
-avoids this cost in translation units that do not parse (e.g., ones that only define types and conversions or pass
-`json` values around) and reduces their compile time.
-
-## Default definition
-
-By default, `#!cpp JSON_NO_AUTOMATIC_UDLS` is not defined, and `<nlohmann/json.hpp>` includes
-`<nlohmann/json_literals.hpp>`.
-
-```cpp
-#undef JSON_NO_AUTOMATIC_UDLS
-```
-
-## Notes
-
-!!! info "Header `<nlohmann/json_literals.hpp>`"
-
-    The header includes `<nlohmann/json.hpp>` itself and places the literals according to
-    [`JSON_USE_GLOBAL_UDLS`](json_use_global_udls.md). It is part of the multi-header sources (`include/nlohmann`)
-    and of the single-header sources (`single_include/nlohmann`), next to `json.hpp`.
-
-!!! info "C++ modules"
-
-    The `nlohmann.json` [module](../../features/modules.md) always exports the literals, regardless of this macro.
-
-## Examples
-
-??? example
-
-    The code below includes the library without the literals and adds them in a single translation unit.
-
-    ```cpp
-    // compiled with -DJSON_NO_AUTOMATIC_UDLS for the whole project
-    #include <nlohmann/json.hpp>
-
-    // this file uses the literals, so it includes them explicitly
-    #include <nlohmann/json_literals.hpp>
-
-    int main()
-    {
-        auto j = R"({"foo": 42})"_json;
-        return j.at("/foo"_json_pointer) == 42 ? 0 : 1;
-    }
-    ```
-
-    Without the include of `<nlohmann/json_literals.hpp>`, the code would fail to compile.
-
-## See also
-
- [`operator""_json`](../operator_literal_json.md)
- [`operator""_json_pointer`](../operator_literal_json_pointer.md)
- [`JSON_USE_GLOBAL_UDLS`](json_use_global_udls.md) - place user-defined string literals (UDLs) into the global namespace
-
-## Version history
-
- Added in version 3.13.0.
@@ -16,8 +16,7 @@ byte is still not rejected:
  [`from_msgpack`](../basic_json/from_msgpack.md), [`from_ubjson`](../basic_json/from_ubjson.md)) are never affected: there, `0x00` is ordinary data.
 - A bare `const char*` pointer has no length of its own, so its length is still determined with `strlen()`. The first
  NUL byte therefore still marks the end of the input, and nothing after it is read.
- One trailing `'\0'` at the end of a `char`, `wchar_t`, `char16_t`, `char32_t`, or (C++20) `char8_t` array (e.g., a
-  string literal) is trimmed; see the warning below.
+- One trailing `'\0'` at the end of a `char` array (e.g., a string literal) is trimmed; see the warning below.

 ## Default definition

@@ -58,15 +57,13 @@ The default value is `0` (disabled — existing behavior is preserved).
    This macro must be defined **before** including `<nlohmann/json.hpp>`. Defining it after the include has no
    effect.

-    Enabling it also changes how an array of a text-literal element type (`char`, `wchar_t`, `char16_t`, `char32_t`,
-    or, since C++20, `char8_t` - including a string literal, e.g. `json::parse("123")` or `json::parse(L"123")`) is
-    read: such an array normally carries a trailing `'\0'` contributed by the compiler, not by the source text. With
-    this macro enabled, that one trailing element is trimmed if present so that parsing a string literal keeps
-    working, for any of these character types; every other element in the array - including any `'\0'` that is not
-    the very last element - is read as real data and rejected like any other unexpected byte. Arrays of any other
-    element type (`unsigned char`, `std::uint8_t`, ...), as used for CBOR or MessagePack, are never affected by this
-    trimming; their full extent - including a genuine trailing `0x00` - is always preserved, in both states of this
-    macro.
+    Enabling it also changes how a `char` array (including a string literal, e.g. `json::parse("123")`) is read: such
+    an array normally carries a trailing `'\0'` contributed by the compiler, not by the source text. With this macro
+    enabled, that one trailing byte is trimmed if present so that parsing a string literal keeps working; every other
+    byte in the array - including any `'\0'` that is not the very last element - is read as real data and rejected
+    like any other unexpected byte. Arrays of any other element type (`unsigned char`, `std::uint8_t`, ...), as used
+    for CBOR or MessagePack, are never affected by this trimming; their full extent - including a genuine trailing
+    `0x00` - is always preserved, in both states of this macro.

 !!! note "ABI compatibility"

@@ -15,7 +15,7 @@ The default value is `1`.
 #define JSON_USE_GLOBAL_UDLS 1
 ```

-When the macro is not defined, the library behaves as if it were defined to its default value.
+When the macro is not defined, the library will define it to its default value.

 ## Notes

@@ -32,11 +32,6 @@ When the macro is not defined, the library behaves as if it were defined to its
    [`JSON_GlobalUDLs`](../../integration/cmake.md#json_globaludls) (`ON` by default) which defines
    `JSON_USE_GLOBAL_UDLS` accordingly.

-!!! info "Leaving out the literals"
-
-    If [`JSON_NO_AUTOMATIC_UDLS`](json_no_automatic_udls.md) is defined, the literals are only declared where
-    `<nlohmann/json_literals.hpp>` is included; this macro then applies to that header.
-
 ## Examples

 ??? example "Example 1: Default behavior"
@@ -97,7 +92,6 @@ When the macro is not defined, the library behaves as if it were defined to its

 - [`operator""_json`](../operator_literal_json.md)
 - [`operator""_json_pointer`](../operator_literal_json_pointer.md)
- [`JSON_NO_AUTOMATIC_UDLS`](json_no_automatic_udls.md) - do not include the user-defined string literals automatically
 - [:simple-cmake: JSON_GlobalUDLs](../../integration/cmake.md#json_globaludls) - CMake option to control the macro

 ## Version history
@@ -18,18 +18,9 @@ Deserializes an input stream to a JSON value.

 the stream `i`

-## Exception safety
-
-Strong guarantee: if an exception is thrown, there are no changes in `j`.
-
 ## Exceptions

- Throws [`parse_error.101`](../home/exceptions.md#jsonexceptionparse_error101) in case of an unexpected token, or if
-  `i` has no stream buffer (`#!cpp i.rdbuf() == nullptr`, for instance `#!cpp std::istream(nullptr)`).
- If reading from `i` reaches the end of the input and `eofbit` is part of `i`'s
-  [`exceptions()`](https://en.cppreference.com/w/cpp/io/basic_ios/exceptions) mask, the `std::ios_base::failure`
-  thrown by `i` itself propagates instead of a `parse_error`, the same as it would for the standard library's own
-  extraction operators.
+- Throws [`parse_error.101`](../home/exceptions.md#jsonexceptionparse_error101) in case of an unexpected token.

 ## Complexity

@@ -127,7 +118,3 @@ being read.
  it as end of input; planned to become the default in version 4.0.0.
 - `JSON_PRECISE_STREAM_POSITION` added in version 3.13.0 to optionally leave the character that terminates a number in
  the stream; planned to become the default in version 4.0.0.
- Fixed a null pointer dereference for an `std::istream` without a stream buffer (now throws `parse_error.101`), and a
-  crash (`std::terminate`) when `i` has `eofbit` in its exception mask, in version 3.13.0.
- Changed to the strong exception safety guarantee in version 3.13.0: `j` is no longer left with a partially parsed
-  value if parsing throws.
@@ -18,9 +18,7 @@ using namespace nlohmann;
 ```

 This is suggested to ease migration to the next major version release of the library. See
-[`JSON_USE_GLOBAL_UDLS`](macros/json_use_global_udls.md#notes) for details. The operator is declared in header
-`<nlohmann/json_literals.hpp>`, which `<nlohmann/json.hpp>` includes unless
-[`JSON_NO_AUTOMATIC_UDLS`](macros/json_no_automatic_udls.md) is defined.
+[`JSON_USE_GLOBAL_UDLS`](macros/json_use_global_udls.md#notes) for details.

 ## Parameters

@@ -61,8 +59,6 @@ Linear.
 ## See also

 - [Creating JSON values](../features/creating_values.md) - the article on creating JSON values
- [JSON_NO_AUTOMATIC_UDLS](macros/json_no_automatic_udls.md) - do not include the user-defined string literals
-  automatically

 ## Version history

@@ -17,9 +17,7 @@ using namespace nlohmann::literals::json_literals;
 using namespace nlohmann;
 ```
 This is suggested to ease migration to the next major version release of the library. See
-[`JSON_USE_GLOBAL_UDLS`](macros/json_use_global_udls.md#notes) for details. The operator is declared in header
-`<nlohmann/json_literals.hpp>`, which `<nlohmann/json.hpp>` includes unless
-[`JSON_NO_AUTOMATIC_UDLS`](macros/json_no_automatic_udls.md) is defined.
+[`JSON_USE_GLOBAL_UDLS`](macros/json_use_global_udls.md#notes) for details.

 ## Parameters

@@ -60,8 +58,6 @@ Linear.
 ## See also

 - [json_pointer](json_pointer/index.md) - type to represent JSON Pointers
- [JSON_NO_AUTOMATIC_UDLS](macros/json_no_automatic_udls.md) - do not include the user-defined string literals
-  automatically

 ## Version history

@@ -28,11 +28,6 @@ A minimal map-like container that preserves insertion order for use within [`nlo
 The type uses a `std::vector` to store object elements. Therefore, adding elements can yield a reallocation in which
 case all iterators (including the `end()` iterator) and all references to the elements are invalidated.

-When the storage grows, the keys are copied and the mapped values are moved to the new storage. A plain `std::vector`
-would copy the whole elements instead, because their `#!cpp const` keys make them not nothrow move constructible; for
-[`ordered_json`](ordered_json.md), this would be a deep copy of every nested value. The values are only copied if
-`T` is not default constructible or not nothrow move assignable.
-
 ## Member types

 - **key_type** - key type (`Key`)
@@ -61,11 +56,6 @@ std::equal_to<>     // since C++14
 - **find**
 - **insert**

-## Exception safety
-
-**emplace**, **operator\[\]**, and **insert(value)** have the strong exception guarantee: if an exception is thrown (for
-instance, because copying a key or allocating memory fails), the contents of the container are unchanged.
-
 ## Complexity

 Because the elements are stored in a `std::vector` in insertion order, there is no index to look a key up by. Every
@@ -132,4 +122,3 @@ This differs from `#!cpp std::map`, where the same operations are O(log n).

 - Added in version 3.9.0 to implement [`nlohmann::ordered_json`](ordered_json.md).
 - Added **key_compare** member in version 3.11.0.
- Changed in version 3.13.0: growing the storage moves the mapped values instead of copying them.
@@ -90,7 +90,7 @@ Note: Some modern features (like C++20 ranges or filesystem support) may be disa
        | GNU 14.2.0                                   | x86_64       | Ubuntu 22.04.1 LTS                | GitHub    |
        | GNU 15.1.0                                   | x86_64       | Ubuntu 22.04.1 LTS                | GitHub    |
        | GNU 16.1.0                                   | x86_64       | Ubuntu 22.04.1 LTS                | GitHub    |
-        | GNU 16.1.0                                   | arm64        | Ubuntu 24.04                      | GitHub    |
+        | GNU 16.1.0                                   | arm64        | Linux 6.1.100                     | Cirrus CI |
        | icpc (ICC) 2021.10.0 20230609                | x86_64       | Ubuntu 22.04 LTS                  | GitHub    |
        | icpx (Intel oneAPI DPC++/C++) 2025.3.2       | x86_64       | Ubuntu 24.04 LTS                  | GitHub    |
        | nvc++ (NVIDIA HPC SDK) 25.5-0                | x86_64       | Ubuntu 22.04 LTS                  | GitHub    |
@@ -132,8 +132,7 @@ Note: Some modern features (like C++20 ranges or filesystem support) may be disa
  [libstdc++](https://gcc.gnu.org/onlinedocs/libstdc++/) to detect subtle differences or incompatibilities.
 - [x] The code checked with [Include What You Use (IWYU)](https://include-what-you-use.org) that all required standard
  headers are included.
- [x] On Windows, the library is compiled with `<Windows.h>` being included to detect and avoid common bugs (see
-  [`unit-windows_h.cpp`](https://github.com/nlohmann/json/blob/develop/tests/src/unit-windows_h.cpp)).
+- [x] On Windows, the library is compiled with `<Windows.h>` being included to detect and avoid common bugs.
 - [x] The library is compiled with exceptions disabled to support alternative means of error handling.

 ## Stable public API
@@ -0,0 +1 @@
+<a target="_blank" href="https://wandbox.org/permlink/hUJYo1HWmfTBLMGn"><b>online</b></a>
@@ -0,0 +1 @@
+<a target="_blank" href="https://wandbox.org/permlink/AWbpa8e1xRV3y4MM"><b>online</b></a>
@@ -61,7 +61,7 @@ The library uses the following mapping from JSON values types to BJData types ac

    The following values can **not** be converted to a BJData value:

-      - strings with more than 18446744073709551615 bytes, i.e., 2<sup>64</sup>-1 bytes (theoretical)
+      - strings with more than 18446744073709551615 bytes, i.e., $2^{64}-1$ bytes (theoretical)

 !!! info "Unused BJData markers"

@@ -83,22 +83,6 @@ When defined, default parse and serialize functions for enums are excluded and h

 See [full documentation of `JSON_DISABLE_ENUM_SERIALIZATION`](../api/macros/json_disable_enum_serialization.md).

-## `JSON_DISABLE_TUPLE_REFERENCE_CONVERSION`
-
-When defined to `1`, a JSON value can no longer be created from a one-element `std::tuple` holding a reference to a JSON
-value, such as the result of `std::forward_as_tuple(j)`. This lets `std::tuple` convert such tuples element-wise.
-
-See [full documentation of `JSON_DISABLE_TUPLE_REFERENCE_CONVERSION`](../api/macros/json_disable_tuple_reference_conversion.md).
-
-## `JSON_NO_AUTOMATIC_UDLS`
-
-When defined, `<nlohmann/json.hpp>` does not include `<nlohmann/json_literals.hpp>` with the user-defined string literals
-`operator""_json` and `operator""_json_pointer`. This reduces the compile time of translation units that do not use
-them, because the literals instantiate the parser in every translation unit that includes them. Include
-`<nlohmann/json_literals.hpp>` where the literals are needed.
-
-See [full documentation of `JSON_NO_AUTOMATIC_UDLS`](../api/macros/json_no_automatic_udls.md).
-
 ## `JSON_NO_IO`

 When defined, headers `<cstdio>`, `<ios>`, `<iosfwd>`, `<istream>`, and `<ostream>` are not included and parse functions
@@ -40,9 +40,6 @@ Only the following symbols are exported from `nlohmann.json`:
 - `nlohmann::literals::json_literals::operator""_json`
 - `nlohmann::literals::json_literals::operator""_json_pointer`

-The module always exports the two user-defined string literals, even if
-[`JSON_NO_AUTOMATIC_UDLS`](../api/macros/json_no_automatic_udls.md) is defined when building it.
-
 Additionally, the following `nlohmann::detail` symbols are exported, solely to work around an MSVC compilation issue
 ([#3970](https://github.com/nlohmann/json/issues/3970)). They are implementation details, not part of the public API,
 and should not be used directly:
@@ -273,7 +273,7 @@ When the default type is used, the maximal unsigned integer number that can be s

 [RFC 8259](https://tools.ietf.org/html/rfc8259) further states:

-> Note that when such software is used, numbers that are integers and are in the range [-2<sup>53</sup>+1, 2<sup>53</sup>-1] are interoperable in the sense that implementations will agree exactly on their numeric values.
+> Note that when such software is used, numbers that are integers and are in the range $[-2^{53}+1, 2^{53}-1]$ are interoperable in the sense that implementations will agree exactly on their numeric values.

 As this range is a subrange of the exactly supported range [`INT64_MIN`, `INT64_MAX`], this class's integer type is interoperable.

@@ -48,7 +48,7 @@ On number interoperability, the following remarks are made:
    for numeric magnitude and precision than is widely available.
    
    Note that when such software is used, numbers that are integers and
-    are in the range [-2<sup>53</sup>+1, 2<sup>53</sup>-1] are interoperable in the
+    are in the range $[-2^{53}+1, 2^{53}-1]$ are interoperable in the
    sense that implementations will agree exactly on their numeric
    values.

@@ -95,9 +95,9 @@ This is the same behavior as the code `#!c double x = 3.141592653589793238462643

 !!! success "Interoperability"

-    - The library is interoperable with respect to the specification, because its supported range [-2<sup>63</sup>, 2<sup>64</sup>-1] is
-      larger than the described range [-2<sup>53</sup>+1, 2<sup>53</sup>-1].
-    - All integers outside the range [-2<sup>63</sup>, 2<sup>64</sup>-1], as well as floating-point numbers are stored as `double`.
+    - The library is interoperable with respect to the specification, because its supported range $[-2^{63}, 2^{64}-1]$ is
+      larger than the described range $[-2^{53}+1, 2^{53}-1]$.
+    - All integers outside the range $[-2^{63}, 2^{64}-1]$, as well as floating-point numbers are stored as `double`.
      This also concurs with the specification above.

 ### Zeros
@@ -389,7 +389,6 @@ using array_t = ArrayType<basic_json, AllocatorType<basic_json>>;
 | Functionality                                                                                                                     | Additional requirement                                                                                                                                                                       |
 |-----------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
 | [`diff`](../../api/basic_json/diff.md), [`items`](../../api/basic_json/items.md), [`std::hash`](../../api/basic_json/std_hash.md) | conversion of a `#!cpp std::size_t` to `StringType`: either assignability from the result of `#!cpp std::to_string`, or an ADL overload `#!cpp void int_to_string(StringType&, std::size_t)` |
-| [`operator/(std::size_t)`](../../api/json_pointer/operator_slash.md)                                                              | the same conversion of a `#!cpp std::size_t` to `StringType` as `diff`, `items`, and `std::hash` above                                                                                       |
 | [`std::hash<basic_json>`](../../api/basic_json/std_hash.md)                                                                       | additionally a specialization of `#!cpp std::hash<StringType>`                                                                                                                               |
 | [`to_bson`](../../api/basic_json/to_bson.md)                                                                                      | `find(value_type)` and `npos`                                                                                                                                                                |
 | [`parse`](../../api/basic_json/parse.md) from a `string_t`                                                                        | the input adapters must accept it; otherwise pass a character range                                                                                                                          |
@@ -19,5 +19,3 @@ The class contains the UTF-8 Decoder from Bjoern Hoehrmann which is licensed und
 The class contains a slightly modified version of the Grisu2 algorithm from Florian Loitsch which is licensed under the [MIT License](https://opensource.org/licenses/MIT) (see above). Copyright &copy; 2009 [Florian Loitsch](https://florian.loitsch.com/)

 The class contains a copy of [Hedley](https://nemequ.github.io/hedley/) from Evan Nemerson which is licensed as [CC0-1.0](https://creativecommons.org/publicdomain/zero/1.0/).
-
-The class contains an adapted version of the Eisel-Lemire algorithm and its table of powers of five from [fast_float](https://github.com/fastfloat/fast_float) by Daniel Lemire and contributors, which is available under the [MIT License](https://opensource.org/licenses/MIT) (used here), the Apache 2.0 License, and the Boost Software License. Copyright &copy; 2021 The fast_float authors
@@ -125,7 +125,7 @@ automatically download a release as a dependency at configure time.

 ### `JSON_BuildTests`

-Build the unit tests when [`BUILD_TESTING`](https://cmake.org/cmake/help/latest/command/enable_testing.html) is enabled. This option is `ON` by default if the library's CMake project is the top project. That is, when integrating the library as described above, the test suite is not built unless explicitly switched on with this option.
+Build the unit tests when [`BUILD_TESTING`](https://cmake.org/cmake/help/latest/command/enable_testing.html) is enabled. This option is `ON` by default if the library's CMake project is the top project and the `tests` directory exists (the release archive `json.tar.xz` does not contain it). That is, when integrating the library as described above, the test suite is not built unless explicitly switched on with this option.

 ### `JSON_CI`

@@ -169,12 +169,6 @@ Enable position diagnostics by defining macro [`JSON_DIAGNOSTIC_POSITIONS`](../a
 Disable default `enum` serialization by defining the macro
 [`JSON_DISABLE_ENUM_SERIALIZATION`](../api/macros/json_disable_enum_serialization.md). This option is `OFF` by default.

-### `JSON_DisableTupleReferenceConversion`
-
-Disable the conversion from a one-element `std::tuple` holding a reference to a JSON value by defining the macro
-[`JSON_DISABLE_TUPLE_REFERENCE_CONVERSION`](../api/macros/json_disable_tuple_reference_conversion.md). This option is
-`OFF` by default.
-
 ### `JSON_FastTests`

 Skip expensive/slow test suites. This option is `OFF` by default. Depends on `JSON_BuildTests`.
@@ -15,7 +15,4 @@ Clang).

 You can further use file
 [`single_include/nlohmann/json_fwd.hpp`](https://github.com/nlohmann/json/blob/develop/single_include/nlohmann/json_fwd.hpp)
-for forward declarations, and file
-[`single_include/nlohmann/json_literals.hpp`](https://github.com/nlohmann/json/blob/develop/single_include/nlohmann/json_literals.hpp)
-for the user-defined string literals if you define
-[`JSON_NO_AUTOMATIC_UDLS`](../api/macros/json_no_automatic_udls.md).
+for forward declarations.
@@ -443,6 +443,30 @@ installed by adding the `-DJSON_MultipleHeaders=ON` flag (i.e., `cget install nl
    - :octicons-file-24: File issues at the [library issue tracker](https://github.com/nlohmann/json/issues)
    - :octicons-question-24: [Xcode documentation](https://developer.apple.com/documentation/xcode/adding-package-dependencies-to-your-app)

+The `json` target's public headers live at `single_include/nlohmann`, so a consumer must write `#include <json.hpp>` rather than the
+`#include <nlohmann/json.hpp>` form used elsewhere in this documentation. The `json` target also ships only headers, and SwiftPM/Xcode
+expect every library target to produce an object file to link against; without one, linking a consumer fails with a missing `json.o`
+([#4650](https://github.com/nlohmann/json/issues/4650)). The workaround is to add at least one `.cpp` file of your own to the target
+that depends on `json`.
+
+??? example
+
+    1. Create the following files:
+
+        ```swift title="Package.swift"
+        --8<-- "integration/swift/Package.swift"
+        ```
+
+        ```cpp title="Sources/MyLibrary/example.cpp"
+        --8<-- "integration/swift/example.cpp"
+        ```
+
+    2. Build
+
+        ```shell
+        swift build
+        ```
+
 ## NuGet

 !!! abstract "Summary"
@@ -678,11 +702,11 @@ to install the [nlohmann-json](https://ports.macports.org/port/nlohmann-json/) p
    1. Create the following files:

        ```cpp title="example.cpp"
-        --8<-- "integration/macports/example.cpp"
+        --8<-- "integration/homebrew/example.cpp"
        ```

        ```cmake title="CMakeLists.txt"
-        --8<-- "integration/macports/CMakeLists.txt"
+        --8<-- "integration/homebrew/CMakeLists.txt"
        ```

    2. Install the package:
@@ -0,0 +1,20 @@
+// swift-tools-version: 5.9
+import PackageDescription
+
+let package = Package(
+    name: "MyPackage",
+    dependencies: [
+        .package(url: "https://github.com/nlohmann/json.git", from: "3.12.0")
+    ],
+    targets: [
+        // the C++ target that uses nlohmann/json
+        .target(
+            name: "MyLibrary",
+            dependencies: [
+                .product(name: "json", package: "json")
+            ],
+            // works around missing public headers in MyLibrary; not related to nlohmann/json
+            publicHeadersPath: "."
+        )
+    ]
+)
@@ -0,0 +1,8 @@
+// MyLibrary must contain at least one .cpp file, or SwiftPM/Xcode will
+// not build a usable "json" library to link against (see nlohmann/json#4650)
+#include <json.hpp>
+
+nlohmann::json example()
+{
+    return nlohmann::json::meta();
+}
@@ -287,14 +287,12 @@ nav:
          - 'JSON_DIAGNOSTICS': api/macros/json_diagnostics.md
          - 'JSON_DIAGNOSTIC_POSITIONS': api/macros/json_diagnostic_positions.md
          - 'JSON_DISABLE_ENUM_SERIALIZATION': api/macros/json_disable_enum_serialization.md
-          - 'JSON_DISABLE_TUPLE_REFERENCE_CONVERSION': api/macros/json_disable_tuple_reference_conversion.md
          - 'JSON_HAS_CPP_11, JSON_HAS_CPP_14, JSON_HAS_CPP_17, JSON_HAS_CPP_20': api/macros/json_has_cpp_11.md
          - 'JSON_HAS_EXPERIMENTAL_FILESYSTEM, JSON_HAS_FILESYSTEM': api/macros/json_has_filesystem.md
          - 'JSON_HAS_RANGES': api/macros/json_has_ranges.md
          - 'JSON_HAS_STATIC_RTTI': api/macros/json_has_static_rtti.md
          - 'JSON_HAS_STD_FORMAT': api/macros/json_has_std_format.md
          - 'JSON_HAS_THREE_WAY_COMPARISON': api/macros/json_has_three_way_comparison.md
-          - 'JSON_NO_AUTOMATIC_UDLS': api/macros/json_no_automatic_udls.md
          - 'JSON_NOEXCEPTION': api/macros/json_noexception.md
          - 'JSON_NO_IO': api/macros/json_no_io.md
          - 'JSON_NO_THREAD_LOCAL': api/macros/json_no_thread_local.md
@@ -351,6 +349,7 @@ markdown_extensions:
  - toc:
      permalink: true
  - md_in_html
+  - pymdownx.arithmatex
  - pymdownx.betterem:
      smart_enable: all
  - pymdownx.caret
@@ -442,3 +441,6 @@ plugins:

 extra_css:
  - css/custom.css
+
+extra_javascript:
+  - https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.0/MathJax.js?config=TeX-MML-AM_CHTML
@@ -79,9 +79,9 @@ def check_structure() -> None:
                    report("whitespace/line_length", f"{file}:{lineno+1} ({current_section})", f"line is too long ({len(line)} vs. 160 chars)")

                # sections in `<!-- NOLINT -->` comments are treated as present
-                nolint_match = re.match(r"<!--\s*NOLINT\s+(.*?)\s*-->", line)
-                if nolint_match:
-                    current_section = nolint_match.group(1)
+                if line.startswith("<!-- NOLINT"):
+                    current_section = line.strip("<!-- NOLINT")
+                    current_section = current_section.strip(" -->")
                    existing_sections.append(current_section)

                # check if sections are correct
@@ -97,7 +97,7 @@ def check_structure() -> None:
                            if len(unexpected):
                                report("style/numbering", f"{file}:{lineno} ({current_section})", f'unexpected overloads: {", ".join([f"({x})" for x in unexpected])}')

-                    current_section = line[3:]
+                    current_section = line.strip("## ")
                    existing_sections.append(current_section)

                    if current_section in expected_sections:
@@ -141,7 +141,7 @@ def check_structure() -> None:
                # check that non-example admonitions have titles
                untitled_admonition = re.match(r"^(\?\?\?|!!!) ([^ ]+)$", line)
                if untitled_admonition and untitled_admonition.group(2) != "example":
-                    report("style/admonition_title", f"{file}:{lineno+1} ({current_section})", f'"{untitled_admonition.group(2)}" admonitions should have a title')
+                    report("style/admonition_title", f"{file}:{lineno} ({current_section})", f'"{untitled_admonition.group(2)}" admonitions should have a title')

                previous_line = line

@@ -1,81 +0,0 @@
-//     __ _____ _____ _____
-//  __|  |   __|     |   | |  JSON for Modern C++
-// |  |  |__   |  |  | | | |  version 3.12.0
-// |_____|_____|_____|_|___|  https://github.com/nlohmann/json
-//
-// SPDX-FileCopyrightText: 2013-2026 Niels Lohmann <https://nlohmann.me>
-// SPDX-License-Identifier: MIT
-
-#pragma once
-
-#include <cstdint> // uint64_t
-
-#include <nlohmann/detail/abi_macros.hpp>
-
-// Portable bit-level helpers for the number and string scanners. They use
-// compiler builtins where available and plain C++ otherwise, so they need no
-// platform headers and work regardless of byte order.
-
-NLOHMANN_JSON_NAMESPACE_BEGIN
-namespace detail
-{
-
-/// number of leading zero bits of x (x != 0)
-inline int count_leading_zeros(std::uint64_t x) noexcept
-{
-#if defined(__GNUC__) || defined(__clang__)
-    return __builtin_clzll(x);
-#else
-    int n = 0;
-    for (int shift = 32; shift != 0; shift >>= 1)
-    {
-        if ((x >> (64 - shift)) == 0)
-        {
-            n += shift;
-            x <<= shift;
-        }
-    }
-    return n;
-#endif
-}
-
-/// the 128-bit product of two 64-bit numbers
-struct uint128_parts
-{
-    std::uint64_t low;
-    std::uint64_t high;
-};
-
-inline uint128_parts full_multiplication(std::uint64_t a, std::uint64_t b) noexcept
-{
-#if defined(__SIZEOF_INT128__)
-    __extension__ using uint128 = unsigned __int128;
-    const uint128 r = static_cast<uint128>(a) * b;
-    return {static_cast<std::uint64_t>(r), static_cast<std::uint64_t>(r >> 64u)};
-#else
-    const std::uint64_t a_lo = a & 0xFFFFFFFFu;
-    const std::uint64_t a_hi = a >> 32u;
-    const std::uint64_t b_lo = b & 0xFFFFFFFFu;
-    const std::uint64_t b_hi = b >> 32u;
-    const std::uint64_t lo_lo = a_lo * b_lo;
-    const std::uint64_t hi_lo = a_hi * b_lo;
-    const std::uint64_t lo_hi = a_lo * b_hi;
-    const std::uint64_t hi_hi = a_hi * b_hi;
-    const std::uint64_t cross = (lo_lo >> 32u) + (hi_lo & 0xFFFFFFFFu) + lo_hi;
-    return {(cross << 32u) | (lo_lo & 0xFFFFFFFFu), (hi_lo >> 32u) + (cross >> 32u) + hi_hi};
-#endif
-}
-
-/// eight bytes as a little-endian word (compilers fold this into one load on
-/// little-endian targets)
-inline std::uint64_t read_eight_bytes(const char* p) noexcept
-{
-    const auto* b = reinterpret_cast<const unsigned char*>(p); // NOLINT(cppcoreguidelines-pro-type-reinterpret-cast)
-    return static_cast<std::uint64_t>(b[0]) | (static_cast<std::uint64_t>(b[1]) << 8u)
-           | (static_cast<std::uint64_t>(b[2]) << 16u) | (static_cast<std::uint64_t>(b[3]) << 24u)
-           | (static_cast<std::uint64_t>(b[4]) << 32u) | (static_cast<std::uint64_t>(b[5]) << 40u)
-           | (static_cast<std::uint64_t>(b[6]) << 48u) | (static_cast<std::uint64_t>(b[7]) << 56u);
-}
-
-}  // namespace detail
-NLOHMANN_JSON_NAMESPACE_END
@@ -167,13 +167,9 @@ template<typename BasicJsonType, typename EnumType,
         enable_if_t<std::is_enum<EnumType>::value, int> = 0>
 inline void from_json(const BasicJsonType& j, EnumType& e)
 {
-    using underlying_type = typename std::underlying_type<EnumType>::type;
-    // get_arithmetic_value() does not accept boolean_t; read the number that to_json() wrote instead
-    using value_type = typename std::conditional<std::is_same<underlying_type, typename BasicJsonType::boolean_t>::value,
-          typename BasicJsonType::number_unsigned_t, underlying_type>::type;
-    value_type val;
+    typename std::underlying_type<EnumType>::type val;
    get_arithmetic_value(j, val);
-    e = static_cast<EnumType>(static_cast<underlying_type>(val));
+    e = static_cast<EnumType>(val);
 }
 #endif  // JSON_DISABLE_ENUM_SERIALIZATION

@@ -568,7 +564,7 @@ inline void from_json(const BasicJsonType& j, std::map<Key, Value, Compare, Allo
    {
        if (JSON_HEDLEY_UNLIKELY(!p.is_array()))
        {
-            JSON_THROW(type_error::create(302, concat("type must be array, but is ", p.type_name()), &p));
+            JSON_THROW(type_error::create(302, concat("type must be array, but is ", p.type_name()), &j));
        }
        m.emplace(p.at(0).template get<Key>(), p.at(1).template get<Value>());
    }
@@ -588,7 +584,7 @@ inline void from_json(const BasicJsonType& j, std::unordered_map<Key, Value, Has
    {
        if (JSON_HEDLEY_UNLIKELY(!p.is_array()))
        {
-            JSON_THROW(type_error::create(302, concat("type must be array, but is ", p.type_name()), &p));
+            JSON_THROW(type_error::create(302, concat("type must be array, but is ", p.type_name()), &j));
        }
        m.emplace(p.at(0).template get<Key>(), p.at(1).template get<Value>());
    }
@@ -287,7 +287,7 @@ struct external_constructor<value_t::object>
 #ifdef JSON_HAS_CPP_17
 template<typename BasicJsonType, typename T,
         enable_if_t<std::is_constructible<BasicJsonType, T>::value, int> = 0>
-void to_json(BasicJsonType& j, const std::optional<T>& opt) noexcept(std::is_nothrow_assignable<BasicJsonType&, const T&>::value)
+void to_json(BasicJsonType& j, const std::optional<T>& opt) noexcept
 {
    if (opt.has_value())
    {
@@ -471,13 +471,11 @@ inline void to_json_tuple_impl(BasicJsonType& j, const Tuple& t, index_sequence<
    j = { std::get<Idx>(t)... };
 }

-// A one-element braced list does not reliably wrap its element: with
-// JSON_BRACE_INIT_COPY_SEMANTICS it copies it, which would serialize
-// std::tuple<int>{5} as 5 rather than [5], and some compilers (e.g., Apple clang
-// 15 and 16) copy an element that is itself a basic_json even without it, so
-// std::tuple<json>{true} became true rather than [true]. Build what the default
-// deduction builds instead: an object if the element is a [string, value] pair,
-// a one-element array otherwise.
+#if JSON_BRACE_INIT_COPY_SEMANTICS
+// JSON_BRACE_INIT_COPY_SEMANTICS makes a one-element braced list copy its
+// element instead of wrapping it, which would serialize std::tuple<int>{5} as 5
+// rather than [5]. Build what the default deduction builds instead: an object
+// if the element is a [string, value] pair, a one-element array otherwise.
 template<typename BasicJsonType, typename Tuple>
 inline void to_json_tuple_impl(BasicJsonType& j, const Tuple& t, index_sequence<0> /*unused*/)
 {
@@ -495,6 +493,7 @@ inline void to_json_tuple_impl(BasicJsonType& j, const Tuple& t, index_sequence<
        j = BasicJsonType::array({std::move(element)});
    }
 }
+#endif

 template<typename BasicJsonType, typename Tuple>
 inline void to_json_tuple_impl(BasicJsonType& j, const Tuple& /*unused*/, index_sequence<> /*unused*/)
@@ -8,6 +8,7 @@

 #pragma once

+#include <algorithm> // generate_n
 #include <array> // array
 #include <cmath> // ldexp
 #include <cstddef> // size_t
@@ -122,16 +123,16 @@ class binary_reader
    ~binary_reader() = default;

    /*!
-    @brief parse in the format the constructor was given
-
+    @param[in] format  the binary format to parse
    @param[in] sax_    a SAX event processor
    @param[in] strict  whether to expect the input to be consumed completed
    @param[in] tag_handler  how to treat CBOR tags

    @return whether parsing was successful
    */
-    JSON_HEDLEY_NON_NULL(2)
-    bool sax_parse(json_sax_t* sax_,
+    JSON_HEDLEY_NON_NULL(3)
+    bool sax_parse(const input_format_t format,
+                   json_sax_t* sax_,
                   const bool strict = true,
                   const cbor_tag_handler_t tag_handler = cbor_tag_handler_t::error)
    {
@@ -140,14 +141,14 @@ class binary_reader
        bon8_pushback_size = 0;
        bool result = false;

-        switch (input_format)
+        switch (format)
        {
            case input_format_t::bson:
                result = parse_bson_internal();
                break;

            case input_format_t::cbor:
-                result = parse_cbor_internal(tag_handler);
+                result = parse_cbor_internal(true, tag_handler);
                break;

            case input_format_t::msgpack:
@@ -270,22 +271,6 @@ class binary_reader
        return enter_container(/*is_object*/true, len, type_marker);
    }

-    /*!
-    @brief close the innermost open array or object
-
-    Pops the container opened by the matching @ref enter_container call and
-    emits the SAX end event. Every format-specific driver otherwise repeated
-    the same pop-then-dispatch sequence at its own close site.
-
-    @return whether the SAX parser accepted the end event
-    */
-    bool leave_container()
-    {
-        const bool is_object = container_stack.back().is_object;
-        container_stack.pop_back();
-        return is_object ? sax->end_object() : sax->end_array();
-    }
-
    //////////
    // BSON //
    //////////
@@ -370,8 +355,8 @@ class binary_reader
            if (element_type == 0) // end of the innermost document
            {
                // a copy, not a reference: it must stay valid across the
-                // pop_back() inside leave_container() below, which destroys
-                // the container_stack element it would otherwise alias
+                // pop_back() below, which destroys the container_stack
+                // element it would otherwise alias
                const container_frame top = container_stack.back();

                if (JSON_HEDLEY_UNLIKELY(!check_bson_document_size(top.start_position, top.declared_size)))
@@ -379,7 +364,8 @@ class binary_reader
                    return false;
                }

-                if (JSON_HEDLEY_UNLIKELY(!leave_container()))
+                container_stack.pop_back();
+                if (JSON_HEDLEY_UNLIKELY(top.is_object ? !sax->end_object() : !sax->end_array()))
                {
                    return false;
                }
@@ -874,13 +860,29 @@ class binary_reader
                return enter_array(conditional_static_cast<std::size_t>(static_cast<unsigned int>(current) & 0x1Fu));

            case 0x98: // array (one-byte uint8_t for n follows)
+            {
+                std::uint8_t len{};
+                return get_number(input_format_t::cbor, len) && enter_array(static_cast<std::size_t>(len));
+            }
+
            case 0x99: // array (two-byte uint16_t for n follow)
+            {
+                std::uint16_t len{};
+                return get_number(input_format_t::cbor, len) && enter_array(static_cast<std::size_t>(len));
+            }
+
            case 0x9A: // array (four-byte uint32_t for n follow)
+            {
+                std::uint32_t len{};
+                std::size_t size{};
+                return get_number(input_format_t::cbor, len) && get_cbor_container_size(len, size, "array") && enter_array(size);
+            }
+
            case 0x9B: // array (eight-byte uint64_t for n follow)
            {
                std::uint64_t len{};
                std::size_t size{};
-                return get_cbor_argument(len) && get_cbor_container_size(len, size, "array") && enter_array(size);
+                return get_number(input_format_t::cbor, len) && get_cbor_container_size(len, size, "array") && enter_array(size);
            }

            case 0x9F: // array (indefinite length)
@@ -914,19 +916,35 @@ class binary_reader
                return enter_object(conditional_static_cast<std::size_t>(static_cast<unsigned int>(current) & 0x1Fu));

            case 0xB8: // map (one-byte uint8_t for n follows)
+            {
+                std::uint8_t len{};
+                return get_number(input_format_t::cbor, len) && enter_object(static_cast<std::size_t>(len));
+            }
+
            case 0xB9: // map (two-byte uint16_t for n follow)
+            {
+                std::uint16_t len{};
+                return get_number(input_format_t::cbor, len) && enter_object(static_cast<std::size_t>(len));
+            }
+
            case 0xBA: // map (four-byte uint32_t for n follow)
+            {
+                std::uint32_t len{};
+                std::size_t size{};
+                return get_number(input_format_t::cbor, len) && get_cbor_container_size(len, size, "map") && enter_object(size);
+            }
+
            case 0xBB: // map (eight-byte uint64_t for n follow)
            {
                std::uint64_t len{};
                std::size_t size{};
-                return get_cbor_argument(len) && get_cbor_container_size(len, size, "map") && enter_object(size);
+                return get_number(input_format_t::cbor, len) && get_cbor_container_size(len, size, "map") && enter_object(size);
            }

            case 0xBF: // map (indefinite length)
                return enter_object(detail::unknown_size());

-            case 0xC0: // tagged item (tag value 0-23, in the head itself)
+            case 0xC0: // tagged item
            case 0xC1:
            case 0xC2:
            case 0xC3:
@@ -950,22 +968,6 @@ class binary_reader
            case 0xD5:
            case 0xD6:
            case 0xD7:
-            {
-                if (tag_handler == cbor_tag_handler_t::error)
-                {
-                    auto last_token = get_token_string();
-                    return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read,
-                                            exception_message(input_format_t::cbor, concat("invalid byte: 0x", last_token), "value"), nullptr));
-                }
-
-                // ignore and store: the tag value is already in the head, so
-                // there is nothing left to read here; the tagged value that
-                // follows is read by the loop in parse_cbor_internal() rather
-                // than by recursing here
-                tag_pending = true;
-                return true;
-            }
-
            case 0xD8: // tagged item (1 byte follows)
            case 0xD9: // tagged item (2 bytes follow)
            case 0xDA: // tagged item (4 bytes follow)
@@ -982,11 +984,47 @@ class binary_reader

                    case cbor_tag_handler_t::ignore:
                    {
-                        // ignore the tag's binary subtype argument
-                        std::uint64_t subtype_to_ignore{};
-                        if (!get_cbor_argument(subtype_to_ignore))
+                        // ignore binary subtype
+                        switch (current)
                        {
-                            return false;
+                            case 0xD8:
+                            {
+                                std::uint8_t subtype_to_ignore{};
+                                if (!get_number(input_format_t::cbor, subtype_to_ignore))
+                                {
+                                    return false;
+                                }
+                                break;
+                            }
+                            case 0xD9:
+                            {
+                                std::uint16_t subtype_to_ignore{};
+                                if (!get_number(input_format_t::cbor, subtype_to_ignore))
+                                {
+                                    return false;
+                                }
+                                break;
+                            }
+                            case 0xDA:
+                            {
+                                std::uint32_t subtype_to_ignore{};
+                                if (!get_number(input_format_t::cbor, subtype_to_ignore))
+                                {
+                                    return false;
+                                }
+                                break;
+                            }
+                            case 0xDB:
+                            {
+                                std::uint64_t subtype_to_ignore{};
+                                if (!get_number(input_format_t::cbor, subtype_to_ignore))
+                                {
+                                    return false;
+                                }
+                                break;
+                            }
+                            default:
+                                break;
                        }
                        // the tagged value follows; it is read by the loop in
                        // parse_cbor_internal() rather than by recursing here
@@ -996,15 +1034,57 @@ class binary_reader

                    case cbor_tag_handler_t::store:
                    {
-                        // use binary subtype and store in a binary container
-                        std::uint64_t subtype{};
-                        if (!get_cbor_argument(subtype))
-                        {
-                            return false;
-                        }
                        binary_t b;
-                        b.set_subtype(detail::conditional_static_cast<typename binary_t::subtype_type>(subtype));
-
+                        // use binary subtype and store in a binary container
+                        switch (current)
+                        {
+                            case 0xD8:
+                            {
+                                std::uint8_t subtype{};
+                                if (!get_number(input_format_t::cbor, subtype))
+                                {
+                                    return false;
+                                }
+                                b.set_subtype(detail::conditional_static_cast<typename binary_t::subtype_type>(subtype));
+                                break;
+                            }
+                            case 0xD9:
+                            {
+                                std::uint16_t subtype{};
+                                if (!get_number(input_format_t::cbor, subtype))
+                                {
+                                    return false;
+                                }
+                                b.set_subtype(detail::conditional_static_cast<typename binary_t::subtype_type>(subtype));
+                                break;
+                            }
+                            case 0xDA:
+                            {
+                                std::uint32_t subtype{};
+                                if (!get_number(input_format_t::cbor, subtype))
+                                {
+                                    return false;
+                                }
+                                b.set_subtype(detail::conditional_static_cast<typename binary_t::subtype_type>(subtype));
+                                break;
+                            }
+                            case 0xDB:
+                            {
+                                std::uint64_t subtype{};
+                                if (!get_number(input_format_t::cbor, subtype))
+                                {
+                                    return false;
+                                }
+                                b.set_subtype(detail::conditional_static_cast<typename binary_t::subtype_type>(subtype));
+                                break;
+                            }
+                            default:
+                            {
+                                // as above, the tagged value is read by the caller
+                                tag_pending = true;
+                                return true;
+                            }
+                        }
                        get();
                        // a byte string (the heads accepted by get_cbor_binary) keeps the tag as subtype
                        if ((current >= 0x40 && current <= 0x5B) || current == 0x5F)
@@ -1035,7 +1115,52 @@ class binary_reader
                return sax->null();

            case 0xF9: // Half-Precision Float (two-byte IEEE 754)
-                return get_half_float(input_format_t::cbor, false);
+            {
+                const auto byte1_raw = get();
+                if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::cbor, "number")))
+                {
+                    return false;
+                }
+                const auto byte2_raw = get();
+                if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::cbor, "number")))
+                {
+                    return false;
+                }
+
+                const auto byte1 = static_cast<unsigned char>(byte1_raw);
+                const auto byte2 = static_cast<unsigned char>(byte2_raw);
+
+                // Code from RFC 8949, Appendix D, Figure 3:
+                // As half-precision floating-point numbers were only added
+                // to IEEE 754 in 2008, today's programming platforms often
+                // still only have limited support for them. It is very
+                // easy to include at least decoding support for them even
+                // without such support. An example of a small decoder for
+                // half-precision floating-point numbers in the C language
+                // is shown in Fig. 3.
+                const auto half = static_cast<unsigned int>((byte1 << 8u) + byte2);
+                const double val = [&half]
+                {
+                    const int exp = (half >> 10u) & 0x1Fu;
+                    const unsigned int mant = half & 0x3FFu;
+                    JSON_ASSERT(exp <= 31);
+                    JSON_ASSERT(mant <= 1023);
+                    switch (exp)
+                    {
+                        case 0:
+                            return std::ldexp(mant, -24);
+                        case 31:
+                            return (mant == 0)
+                            ? std::numeric_limits<double>::infinity()
+                            : std::numeric_limits<double>::quiet_NaN();
+                        default:
+                            return std::ldexp(mant + 1024, exp - 25);
+                    }
+                }();
+                return sax->number_float((half & 0x8000u) != 0
+                                         ? static_cast<number_float_t>(-val)
+                                         : static_cast<number_float_t>(val), "");
+            }

            case 0xFA: // Single-Precision Float (four-byte IEEE 754)
            {
@@ -1414,73 +1539,6 @@ class binary_reader
        }
    }

-    /*!
-    @brief read a CBOR argument (additional information 24-27) of the width
-           @ref current announces
-
-    The lower 5 bits of @a current (0x18-0x1B) select a 1/2/4/8-byte
-    big-endian unsigned integer that follows the head byte; this is shared by
-    every major type that uses this encoding (unsigned/negative integers,
-    strings, arrays, maps, tags). Reading always goes through @ref get_number,
-    so EOF is reported the same way as before this helper existed.
-
-    @param[out] value  the decoded argument
-    @return whether reading succeeded
-    */
-    bool get_cbor_argument(std::uint64_t& value)
-    {
-        switch (current & 0x1F)
-        {
-            case 0x18: // 1 byte
-            {
-                std::uint8_t n{};
-                if (JSON_HEDLEY_UNLIKELY(!get_number(input_format_t::cbor, n)))
-                {
-                    return false;
-                }
-                value = n;
-                return true;
-            }
-
-            case 0x19: // 2 bytes
-            {
-                std::uint16_t n{};
-                if (JSON_HEDLEY_UNLIKELY(!get_number(input_format_t::cbor, n)))
-                {
-                    return false;
-                }
-                value = n;
-                return true;
-            }
-
-            case 0x1A: // 4 bytes
-            {
-                std::uint32_t n{};
-                if (JSON_HEDLEY_UNLIKELY(!get_number(input_format_t::cbor, n)))
-                {
-                    return false;
-                }
-                value = n;
-                return true;
-            }
-
-            case 0x1B: // 8 bytes
-            {
-                std::uint64_t n{};
-                if (JSON_HEDLEY_UNLIKELY(!get_number(input_format_t::cbor, n)))
-                {
-                    return false;
-                }
-                value = n;
-                return true;
-            }
-
-            default:                 // LCOV_EXCL_LINE
-                JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE
-                return false;        // LCOV_EXCL_LINE
-        }
-    }
-
    /*!
    @brief narrow a definite CBOR array/map length to std::size_t

@@ -1513,15 +1571,19 @@ class binary_reader
    enclosing container after each element, so that the nesting depth of the
    input costs heap rather than native stack (see #5104).

+    @param[in] get_char  whether a new character should be retrieved from the
+                         input (true) or whether the last read character
+                         @a current should be considered instead
    @param[in] tag_handler how CBOR tags should be treated

    @return whether reading the value succeeded
    */
-    bool parse_cbor_internal(const cbor_tag_handler_t tag_handler)
+    bool parse_cbor_internal(const bool get_char,
+                             const cbor_tag_handler_t tag_handler)
    {
        // whether the next value starts at a fresh byte or at the one already
        // read into `current`
-        bool fetch = true;
+        bool fetch = get_char;

        // the key currently being read; hoisted out of the loop so that its
        // capacity is reused across elements and across nesting levels
@@ -1564,7 +1626,8 @@ class binary_reader

                if (at_end)
                {
-                    if (JSON_HEDLEY_UNLIKELY(!leave_container()))
+                    container_stack.pop_back();
+                    if (JSON_HEDLEY_UNLIKELY(top.is_object ? !sax->end_object() : !sax->end_array()))
                    {
                        return false;
                    }
@@ -1613,6 +1676,9 @@ class binary_reader
    // MsgPack //
    /////////////

+    /*!
+    @return whether a valid MessagePack value was passed to the SAX parser
+    */
    /*!
    @brief read one MessagePack value

@@ -2311,7 +2377,8 @@ class binary_reader

                if (container_stack.back().remaining == 0)
                {
-                    if (JSON_HEDLEY_UNLIKELY(!leave_container()))
+                    container_stack.pop_back();
+                    if (JSON_HEDLEY_UNLIKELY(is_object ? !sax->end_object() : !sax->end_array()))
                    {
                        return false;
                    }
@@ -2356,16 +2423,20 @@ class binary_reader
    ////////////

    /*!
+    @param[in] get_char  whether a new character should be retrieved from the
+                         input (true, default) or whether the last read
+                         character should be considered instead
+
    @return whether a valid UBJSON value was passed to the SAX parser
    */
-    bool parse_ubjson_internal()
+    bool parse_ubjson_internal(const bool get_char = true)
    {
        // the key currently being read; hoisted out of the loop so that its
        // capacity is reused across elements and across nesting levels
        string_t key;

        // the type marker of the value to read next
-        char_int_type prefix = get_ignore_noop();
+        char_int_type prefix = get_char ? get_ignore_noop() : current;

        while (true)
        {
@@ -2440,7 +2511,8 @@ class binary_reader
                    break;
                }

-                if (JSON_HEDLEY_UNLIKELY(!leave_container()))
+                container_stack.pop_back();
+                if (JSON_HEDLEY_UNLIKELY(top.is_object ? !sax->end_object() : !sax->end_array()))
                {
                    return false;
                }
@@ -2648,42 +2720,6 @@ class binary_reader
        return true;
    }

-    /*!
-    @brief read a UBJSON/BJData optimized-container count of a signed marker
-           type ('i', 'I', 'l', 'L') and narrow it to std::size_t
-
-    Every signed count marker rejects a negative value the same way (error
-    113); the value_in_range_of check additionally needed for 'L' is only
-    ever live when @a SignedType is std::int64_t on a target where
-    std::size_t is narrower (e.g. 32-bit), since 'i'/'I'/'l' can never exceed
-    std::size_t there.
-
-    @tparam SignedType  std::int8_t, std::int16_t, std::int32_t or std::int64_t
-    @param[out] result  the count narrowed to std::size_t
-    @return whether reading and validating succeeded
-    */
-    template<typename SignedType>
-    bool get_ubjson_signed_count(std::size_t& result)
-    {
-        SignedType number{};
-        if (JSON_HEDLEY_UNLIKELY(!get_number(input_format, number)))
-        {
-            return false;
-        }
-        if (JSON_HEDLEY_UNLIKELY(number < 0))
-        {
-            return sax->parse_error(chars_read, get_token_string(), parse_error::create(113, chars_read,
-                                    exception_message(input_format, "count in an optimized container must be positive", "size"), nullptr));
-        }
-        if (JSON_HEDLEY_UNLIKELY(!value_in_range_of<std::size_t>(number)))
-        {
-            return sax->parse_error(chars_read, get_token_string(), out_of_range::create(408,
-                                    exception_message(input_format, "integer value overflow", "size"), nullptr));
-        }
-        result = static_cast<std::size_t>(number); // NOLINT(bugprone-signed-char-misuse,cert-str34-c): number is not a char
-        return true;
-    }
-
    /*!
    @param[out] result  determined size
    @param[in,out] is_ndarray  for input, `true` means already inside an ndarray vector
@@ -2716,16 +2752,73 @@ class binary_reader
            }

            case 'i':
-                return get_ubjson_signed_count<std::int8_t>(result);
+            {
+                std::int8_t number{};
+                if (JSON_HEDLEY_UNLIKELY(!get_number(input_format, number)))
+                {
+                    return false;
+                }
+                if (number < 0)
+                {
+                    return sax->parse_error(chars_read, get_token_string(), parse_error::create(113, chars_read,
+                                            exception_message(input_format, "count in an optimized container must be positive", "size"), nullptr));
+                }
+                result = static_cast<std::size_t>(number); // NOLINT(bugprone-signed-char-misuse,cert-str34-c): number is not a char
+                return true;
+            }

            case 'I':
-                return get_ubjson_signed_count<std::int16_t>(result);
+            {
+                std::int16_t number{};
+                if (JSON_HEDLEY_UNLIKELY(!get_number(input_format, number)))
+                {
+                    return false;
+                }
+                if (number < 0)
+                {
+                    return sax->parse_error(chars_read, get_token_string(), parse_error::create(113, chars_read,
+                                            exception_message(input_format, "count in an optimized container must be positive", "size"), nullptr));
+                }
+                result = static_cast<std::size_t>(number);
+                return true;
+            }

            case 'l':
-                return get_ubjson_signed_count<std::int32_t>(result);
+            {
+                std::int32_t number{};
+                if (JSON_HEDLEY_UNLIKELY(!get_number(input_format, number)))
+                {
+                    return false;
+                }
+                if (number < 0)
+                {
+                    return sax->parse_error(chars_read, get_token_string(), parse_error::create(113, chars_read,
+                                            exception_message(input_format, "count in an optimized container must be positive", "size"), nullptr));
+                }
+                result = static_cast<std::size_t>(number);
+                return true;
+            }

            case 'L':
-                return get_ubjson_signed_count<std::int64_t>(result);
+            {
+                std::int64_t number{};
+                if (JSON_HEDLEY_UNLIKELY(!get_number(input_format, number)))
+                {
+                    return false;
+                }
+                if (number < 0)
+                {
+                    return sax->parse_error(chars_read, get_token_string(), parse_error::create(113, chars_read,
+                                            exception_message(input_format, "count in an optimized container must be positive", "size"), nullptr));
+                }
+                if (!value_in_range_of<std::size_t>(number))
+                {
+                    return sax->parse_error(chars_read, get_token_string(), out_of_range::create(408,
+                                            exception_message(input_format, "integer value overflow", "size"), nullptr));
+                }
+                result = static_cast<std::size_t>(number);
+                return true;
+            }

            case 'u':
            {
@@ -2816,23 +2909,16 @@ class binary_reader
                    result = 1;
                    for (auto i : dim)
                    {
-                        // Pre-multiplication overflow check: since the loop above
-                        // already rejected any zero dimension, i is always > 0
-                        // here, so result > SIZE_MAX/i means result*i would
-                        // overflow. This check must happen before multiplication
-                        // since overflow detection after the fact is unreliable,
-                        // as modular arithmetic can produce any value, not just 0
-                        // or SIZE_MAX.
-                        if (JSON_HEDLEY_UNLIKELY(result > (std::numeric_limits<std::size_t>::max)() / i))
+                        // Pre-multiplication overflow check: if i > 0 and result > SIZE_MAX/i, then result*i would overflow.
+                        // This check must happen before multiplication since overflow detection after the fact is unreliable
+                        // as modular arithmetic can produce any value, not just 0 or SIZE_MAX.
+                        if (JSON_HEDLEY_UNLIKELY(i > 0 && result > (std::numeric_limits<std::size_t>::max)() / i))
                        {
                            return sax->parse_error(chars_read, get_token_string(), out_of_range::create(408, exception_message(input_format, "excessive ndarray size caused overflow", "size"), nullptr));
                        }
                        result *= i;
-                        // the pre-check above already rules out result becoming 0
-                        // by overflow; the only value it cannot rule out is an
-                        // exact match with npos, the sentinel reserved for an
-                        // unknown-size container (see get_ubjson_size_type())
-                        if (result == npos)
+                        // Additional post-multiplication check to catch any edge cases the pre-check might miss
+                        if (result == 0 || result == npos)
                        {
                            return sax->parse_error(chars_read, get_token_string(), out_of_range::create(408, exception_message(input_format, "excessive ndarray size caused overflow", "size"), nullptr));
                        }
@@ -2893,7 +2979,7 @@ class binary_reader
        {
            result.second = get();  // must not ignore 'N', because 'N' maybe the type
            if (input_format == input_format_t::bjdata
-                    && JSON_HEDLEY_UNLIKELY(is_bjd_excluded_optimized_type(result.second)))
+                    && JSON_HEDLEY_UNLIKELY(std::binary_search(bjd_optimized_type_markers.begin(), bjd_optimized_type_markers.end(), result.second)))
            {
                auto last_token = get_token_string();
                return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read,
@@ -3037,7 +3123,50 @@ class binary_reader
                {
                    break;
                }
-                return get_half_float(input_format, true);
+                const auto byte1_raw = get();
+                if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format, "number")))
+                {
+                    return false;
+                }
+                const auto byte2_raw = get();
+                if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format, "number")))
+                {
+                    return false;
+                }
+
+                const auto byte1 = static_cast<unsigned char>(byte1_raw);
+                const auto byte2 = static_cast<unsigned char>(byte2_raw);
+
+                // Code from RFC 8949, Appendix D, Figure 3:
+                // As half-precision floating-point numbers were only added
+                // to IEEE 754 in 2008, today's programming platforms often
+                // still only have limited support for them. It is very
+                // easy to include at least decoding support for them even
+                // without such support. An example of a small decoder for
+                // half-precision floating-point numbers in the C language
+                // is shown in Fig. 3.
+                const auto half = static_cast<unsigned int>((byte2 << 8u) + byte1);
+                const double val = [&half]
+                {
+                    const int exp = (half >> 10u) & 0x1Fu;
+                    const unsigned int mant = half & 0x3FFu;
+                    JSON_ASSERT(exp <= 31);
+                    JSON_ASSERT(mant <= 1023);
+                    switch (exp)
+                    {
+                        case 0:
+                            return std::ldexp(mant, -24);
+                        case 31:
+                            return (mant == 0)
+                            ? std::numeric_limits<double>::infinity()
+                            : std::numeric_limits<double>::quiet_NaN();
+                        default:
+                            return std::ldexp(mant + 1024, exp - 25);
+                    }
+                }();
+                return sax->number_float((half & 0x8000u) != 0
+                                         ? static_cast<number_float_t>(-val)
+                                         : static_cast<number_float_t>(val), "");
            }

            case 'd':
@@ -3110,16 +3239,19 @@ class binary_reader
        if (input_format == input_format_t::bjdata && size_and_type.first != npos && (size_and_type.second & (1 << 8)) != 0)
        {
            size_and_type.second &= ~(static_cast<char_int_type>(1) << 8);  // use bit 8 to indicate ndarray, here we remove the bit to restore the type marker
-            const char* type_name = bjd_type_name(size_and_type.second);
+            auto it = std::lower_bound(bjd_types_map.begin(), bjd_types_map.end(), size_and_type.second, [](const bjd_type & p, char_int_type t)
+            {
+                return p.first < t;
+            });
            string_t key = "_ArrayType_";
-            if (JSON_HEDLEY_UNLIKELY(type_name == nullptr))
+            if (JSON_HEDLEY_UNLIKELY(it == bjd_types_map.end() || it->first != size_and_type.second))
            {
                auto last_token = get_token_string();
                return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read,
                                        exception_message(input_format, "invalid byte: 0x" + last_token, "type"), nullptr));
            }

-            string_t type = type_name; // sax->string() takes a reference
+            string_t type = it->second; // sax->string() takes a reference
            if (JSON_HEDLEY_UNLIKELY(!sax->key(key) || !sax->string(type)))
            {
                return false;
@@ -3411,7 +3543,8 @@ class binary_reader

                if (at_end)
                {
-                    if (JSON_HEDLEY_UNLIKELY(!leave_container()))
+                    container_stack.pop_back();
+                    if (JSON_HEDLEY_UNLIKELY(top.is_object ? !sax->end_object() : !sax->end_array()))
                    {
                        return false;
                    }
@@ -3950,68 +4083,6 @@ class binary_reader
        return true;
    }

-    /*!
-    @brief read and decode an IEEE 754 half-precision (16-bit) float
-
-    Used by CBOR (big endian) and BJData (little endian); the two formats
-    only differ in the byte order of the two bytes that make up the half.
-
-    @param[in] format       the current format (for diagnostics)
-    @param[in] little_endian whether the two bytes are little endian (BJData)
-                             or big endian (CBOR)
-
-    @return whether reading and decoding succeeded
-    */
-    bool get_half_float(const input_format_t format, const bool little_endian)
-    {
-        const auto byte1_raw = get();
-        if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(format, "number")))
-        {
-            return false;
-        }
-        const auto byte2_raw = get();
-        if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(format, "number")))
-        {
-            return false;
-        }
-
-        const auto byte1 = static_cast<unsigned char>(byte1_raw);
-        const auto byte2 = static_cast<unsigned char>(byte2_raw);
-
-        // Code from RFC 8949, Appendix D, Figure 3:
-        // As half-precision floating-point numbers were only added
-        // to IEEE 754 in 2008, today's programming platforms often
-        // still only have limited support for them. It is very
-        // easy to include at least decoding support for them even
-        // without such support. An example of a small decoder for
-        // half-precision floating-point numbers in the C language
-        // is shown in Fig. 3.
-        const auto half = little_endian
-                          ? static_cast<unsigned int>((byte2 << 8u) + byte1)
-                          : static_cast<unsigned int>((byte1 << 8u) + byte2);
-        const double val = [&half]
-        {
-            const int exp = (half >> 10u) & 0x1Fu;
-            const unsigned int mant = half & 0x3FFu;
-            JSON_ASSERT(exp <= 31);
-            JSON_ASSERT(mant <= 1023);
-            switch (exp)
-            {
-                case 0:
-                    return std::ldexp(mant, -24);
-                case 31:
-                    return (mant == 0)
-                    ? std::numeric_limits<double>::infinity()
-                    : std::numeric_limits<double>::quiet_NaN();
-                default:
-                    return std::ldexp(mant + 1024, exp - 25);
-            }
-        }();
-        return sax->number_float((half & 0x8000u) != 0
-                                 ? static_cast<number_float_t>(-val)
-                                 : static_cast<number_float_t>(val), "");
-    }
-
    /*!
    @brief create a string by reading characters from the input

@@ -4237,61 +4308,38 @@ class binary_reader
    /// BON8: number of bytes in @ref bon8_pushback
    std::size_t bon8_pushback_size = 0;

+    // excluded markers in bjdata optimized type
+#define JSON_BINARY_READER_MAKE_BJD_OPTIMIZED_TYPE_MARKERS_ \
+    make_array<char_int_type>('F', 'H', 'N', 'S', 'T', 'Z', '[', '{')
+
+#define JSON_BINARY_READER_MAKE_BJD_TYPES_MAP_ \
+    make_array<bjd_type>(                      \
+    bjd_type{'B', "byte"},                     \
+    bjd_type{'C', "char"},                     \
+    bjd_type{'D', "double"},                   \
+    bjd_type{'I', "int16"},                    \
+    bjd_type{'L', "int64"},                    \
+    bjd_type{'M', "uint64"},                   \
+    bjd_type{'U', "uint8"},                    \
+    bjd_type{'d', "single"},                   \
+    bjd_type{'i', "int8"},                     \
+    bjd_type{'l', "int32"},                    \
+    bjd_type{'m', "uint32"},                   \
+    bjd_type{'u', "uint16"})
+
  JSON_PRIVATE_UNLESS_TESTED:
-    /*!
-    @brief whether @a marker is excluded from BJData's optimized ND-array types
-    @return whether @a marker is one of 'F', 'H', 'N', 'S', 'T', 'Z', '[', '{'
+    // lookup tables
+    // NOLINTNEXTLINE(cppcoreguidelines-non-private-member-variables-in-classes)
+    const decltype(JSON_BINARY_READER_MAKE_BJD_OPTIMIZED_TYPE_MARKERS_) bjd_optimized_type_markers =
+        JSON_BINARY_READER_MAKE_BJD_OPTIMIZED_TYPE_MARKERS_;

-    Mirrors binary_writer's @ref binary_writer::is_bjdata_excluded_type_marker
-    "is_bjdata_excluded_type_marker()`, which encodes the same list the other
-    way; keep the two in sync.
-    */
-    static constexpr bool is_bjd_excluded_optimized_type(const char_int_type marker) noexcept
-    {
-        return marker == '[' || marker == '{' || marker == 'S' || marker == 'H'
-               || marker == 'T' || marker == 'F' || marker == 'N' || marker == 'Z';
-    }
+    using bjd_type = std::pair<char_int_type, string_t>;
+    // NOLINTNEXTLINE(cppcoreguidelines-non-private-member-variables-in-classes)
+    const decltype(JSON_BINARY_READER_MAKE_BJD_TYPES_MAP_) bjd_types_map =
+        JSON_BINARY_READER_MAKE_BJD_TYPES_MAP_;

-    /*!
-    @brief look up the ND-array element type name for a BJData dtype marker
-    @return the type name ("uint8", "int8", ...), or nullptr if @a marker does
-            not name a known dtype
-
-    A C++11 `constexpr` function cannot contain a `switch`, so this is a
-    plain (non-constexpr) switch instead.
-    */
-    static const char* bjd_type_name(const char_int_type marker)
-    {
-        switch (marker)
-        {
-            case 'B':
-                return "byte";
-            case 'C':
-                return "char";
-            case 'D':
-                return "double";
-            case 'I':
-                return "int16";
-            case 'L':
-                return "int64";
-            case 'M':
-                return "uint64";
-            case 'U':
-                return "uint8";
-            case 'd':
-                return "single";
-            case 'i':
-                return "int8";
-            case 'l':
-                return "int32";
-            case 'm':
-                return "uint32";
-            case 'u':
-                return "uint16";
-            default:
-                return nullptr;
-        }
-    }
+#undef JSON_BINARY_READER_MAKE_BJD_OPTIMIZED_TYPE_MARKERS_
+#undef JSON_BINARY_READER_MAKE_BJD_TYPES_MAP_
 };

 #ifndef JSON_HAS_CPP_17
@@ -106,13 +106,7 @@ class input_stream_adapter
            // was given back with release_lookahead()
            commit_lookahead();
 #endif
-            // only call clear() if there is something to clear: it throws
-            // std::ios_base::failure if the stream has exceptions() enabled
-            // for a state bit that remains set, and a destructor must not throw
-            if ((is->rdstate() & ~std::ios::eofbit) != 0)
-            {
-                is->clear(is->rdstate() & std::ios::eofbit);
-            }
+            is->clear(is->rdstate() & std::ios::eofbit);
        }
    }

@@ -817,16 +811,12 @@ inline file_input_adapter input_adapter(std::FILE* file)

 inline input_stream_adapter input_adapter(std::istream& stream)
 {
-    if (stream.rdbuf() == nullptr)
-    {
-        JSON_THROW(parse_error::create(101, 0, "attempting to parse an empty input; check that your input string or stream contains the expected JSON", nullptr));
-    }
    return input_stream_adapter(stream);
 }

 inline input_stream_adapter input_adapter(std::istream&& stream)
 {
-    return input_adapter(stream);
+    return input_stream_adapter(stream);
 }
 #endif  // JSON_NO_IO

@@ -855,28 +845,16 @@ template<typename T, std::size_t N>
 auto input_adapter(T (&array)[N]) -> decltype(input_adapter(array, array + N)) // NOLINT(cppcoreguidelines-avoid-c-arrays,hicpp-avoid-c-arrays,modernize-avoid-c-arrays)
 {
 #if JSON_STRICT_NUL_HANDLING
-    // A text-literal array from string-literal initialization (e.g.
-    // json::parse("123") or json::parse(L"123")) carries a trailing '\0'
-    // contributed by the compiler, not by the source text; drop exactly that
-    // one byte so it is not mistaken for real trailing data. This covers all
-    // character types that string literals can use: char, wchar_t, char16_t,
-    // char32_t, and (C++20) char8_t. Every other element type (unsigned char,
-    // std::uint8_t, ...) keeps the full extent unconditionally, since a
-    // trailing zero byte there is genuine data (e.g. CBOR/MessagePack). This
-    // intentionally does not strlen()-scan the array (as the pointer overload
-    // above does for a null-delimited string): for an array that is not
-    // NUL-terminated within its bounds, that would read past the end of the
-    // array.
-    using char_t = typename std::remove_cv<T>::type;
-    constexpr bool is_text_literal_type = std::is_same<char_t, char>::value
-                                          || std::is_same<char_t, wchar_t>::value
-                                          || std::is_same<char_t, char16_t>::value
-                                          || std::is_same<char_t, char32_t>::value
-#if defined(__cpp_char8_t)
-                                          || std::is_same<char_t, char8_t>::value
-#endif
-                                          ;
-    if (is_text_literal_type && N > 0 && array[N - 1] == 0)
+    // A `char` array from string-literal initialization (e.g. json::parse("123"))
+    // carries a trailing '\0' contributed by the compiler, not by the source
+    // text; drop exactly that one byte so it is not mistaken for real trailing
+    // data. Every other element type (unsigned char, std::uint8_t, ...) keeps
+    // the full extent unconditionally, since a trailing zero byte there is
+    // genuine data (e.g. CBOR/MessagePack). This intentionally does not
+    // strlen()-scan the array (as the pointer overload above does for a
+    // null-delimited string): for a `char` array that is not NUL-terminated
+    // within its bounds, that would read past the end of the array.
+    if (std::is_same<typename std::remove_cv<T>::type, char>::value && N > 0 && array[N - 1] == 0)
    {
        return input_adapter(array, array + N - 1);
    }
@@ -582,8 +582,8 @@ class json_sax_dom_callback_parser

    bool start_object(std::size_t len)
    {
-        // check callback for object start; not called inside a discarded container
-        const bool keep = keep_stack.back() && callback(static_cast<int>(ref_stack.size()), parse_event_t::object_start, discarded);
+        // check callback for object start
+        const bool keep = callback(static_cast<int>(ref_stack.size()), parse_event_t::object_start, discarded);
        keep_stack.push_back(keep);

        // the key this object will be stored under, read before handle_value()
@@ -619,18 +619,6 @@ class json_sax_dom_callback_parser

    bool key(string_t& val)
    {
-        if (!keep_stack.back() || !ref_stack.back())
-        {
-            // the object is not stored: the value of this key is dropped in
-            // handle_value() without touching the key stacks
-            if (keep_stack.back())
-            {
-                BasicJsonType k = BasicJsonType(val);
-                static_cast<void>(callback(static_cast<int>(ref_stack.size()), parse_event_t::key, k));
-            }
-            return true;
-        }
-
        BasicJsonType k = BasicJsonType(val);

        // check callback for the key
@@ -716,7 +704,7 @@ class json_sax_dom_callback_parser

    bool start_array(std::size_t len)
    {
-        const bool keep = keep_stack.back() && callback(static_cast<int>(ref_stack.size()), parse_event_t::array_start, discarded);
+        const bool keep = callback(static_cast<int>(ref_stack.size()), parse_event_t::array_start, discarded);
        keep_stack.push_back(keep);

        // see start_object()
@@ -9,8 +9,10 @@
 #pragma once

 #include <array> // array
+#include <clocale> // localeconv
 #include <cstddef> // size_t
 #include <cstdio> // snprintf
+#include <cstdlib> // strtof, strtod, strtold, strtoll, strtoull
 #include <initializer_list> // initializer_list
 #include <string> // char_traits, string
 #include <utility> // move
@@ -215,6 +217,18 @@ class lexer : public lexer_base<BasicJsonType>
    ~lexer() = default;

  private:
+    /////////////////////
+    // locales
+    /////////////////////
+
+    /// return the decimal point of the current locale
+    static char get_decimal_point() noexcept
+    {
+        const auto* loc = localeconv();
+        JSON_ASSERT(loc != nullptr);
+        return (loc->decimal_point == nullptr) ? '.' : *(loc->decimal_point);
+    }
+
    /////////////////////
    // scan functions
    /////////////////////
@@ -1022,6 +1036,24 @@ class lexer : public lexer_base<BasicJsonType>
        }
    }

+    JSON_HEDLEY_NON_NULL(2)
+    static void strtof(float& f, const char* str, char** endptr) noexcept
+    {
+        f = std::strtof(str, endptr);
+    }
+
+    JSON_HEDLEY_NON_NULL(2)
+    static void strtof(double& f, const char* str, char** endptr) noexcept
+    {
+        f = std::strtod(str, endptr);
+    }
+
+    JSON_HEDLEY_NON_NULL(2)
+    static void strtof(long double& f, const char* str, char** endptr) noexcept
+    {
+        f = std::strtold(str, endptr);
+    }
+
    /*!
    @brief scan a number literal

@@ -1061,7 +1093,7 @@ class lexer : public lexer_base<BasicJsonType>
    @note The scanner is independent of the current locale: token_buffer
          always holds `.`. Only the std::strtod fallback of convert_number()
          depends on the locale, and it looks up the decimal point right
-          before converting (see detail::convert_float_locale_aware()).
+          before converting (see convert_float_locale_aware()).
    */
    token_type scan_number()  // lgtm [cpp/use-of-goto] `goto` is used in this function to implement the number-parsing state machine described above. By design, any finite input will eventually reach the "done" state or return token_type::parse_error. In each intermediate state, 1 byte of the input is appended to the token_buffer vector, and only the already initialized variables token_buffer, number_type, and error_message are manipulated.
    {
@@ -1392,6 +1424,59 @@ scan_number_done:
        return token_type::uninitialized;
    }

+    /*!
+    @brief check whether Clinger's fast path can still succeed for this token
+
+    parse_float_fast() needs a significand below 2^53. A mantissa with 17 or
+    more significant digits is at least 10^16 and therefore always exceeds it,
+    so calling the fast path would walk the token one extra time only to
+    decline before strtod has to run anyway.
+
+    Significant digits are the mantissa's digits from the first nonzero one on;
+    the sign, the decimal point, leading zeros, and the exponent do not count.
+    The answer is derived from indices - the digits are not scanned again - so
+    this stays off the hot path of the number scanners.
+
+    @param[in] mantissa_end  offset just past the last mantissa byte in
+                             token_buffer
+    @return false if parse_float_fast() is guaranteed to decline
+    */
+    bool mantissa_fits_clinger(std::size_t mantissa_end) const
+    {
+        // 10^16 already exceeds 2^53, so 17 digits can never fit
+        constexpr std::size_t limit = 17;
+
+        const std::size_t neg = (!token_buffer.empty() && token_buffer[0] == '-') ? 1u : 0u;
+        const std::size_t has_dot = (decimal_point_position != std::string::npos) ? 1u : 0u;
+        // the JSON grammar restricts the integer part to "0" or [1-9][0-9]*, so
+        // a leading zero can only be a lone "0", which is not significant
+        const std::size_t lead_zero = (token_buffer[neg] == '0') ? 1u : 0u;
+        JSON_ASSERT(mantissa_end >= neg + has_dot + lead_zero);
+        std::size_t digits = mantissa_end - neg - has_dot - lead_zero;
+
+        if (JSON_HEDLEY_LIKELY(digits < limit))
+        {
+            return true;
+        }
+
+        // Only a number below 1 can carry further insignificant zeros, and only
+        // while the count stays at the limit does removing them change the
+        // answer - so this loop is skipped for all but a few tokens. The
+        // fraction is located through decimal_point_position rather than by
+        // searching '.'.
+        if (lead_zero != 0)
+        {
+            JSON_ASSERT(has_dot != 0); // an integer "0" cannot reach the limit
+            for (std::size_t i = decimal_point_position + 1;
+                    digits >= limit && i < mantissa_end && token_buffer[i] == '0'; ++i)
+            {
+                --digits;
+            }
+        }
+
+        return digits < limit;
+    }
+
    /*!
    @brief convert the number text in token_buffer to its value and token type

@@ -1405,7 +1490,7 @@ scan_number_done:
                             token_buffer (the index of 'e'/'E', or
                             token_buffer.size() when there is no exponent);
                             used to skip Clinger's fast path when it cannot
-                             possibly succeed - see detail::mantissa_fits_clinger()
+                             possibly succeed - see mantissa_fits_clinger()
    */
    token_type convert_number(token_type number_type, std::size_t mantissa_end)
    {
@@ -1478,15 +1563,77 @@ scan_number_done:
        // (Eisel-Lemire, locale-independent, correctly rounded) when available;
        // otherwise the exact Clinger fast path (double only); otherwise the
        // locale-aware strtof/strtod/strtold.
-        if (convert_float_fast(num_begin, num_end, decimal_point_position, mantissa_end, value_float))
+        if (parse_float_from_chars(num_begin, num_end, value_float))
+        {
+            return token_type::value_float;
+        }
+        // Skipping a fast path that cannot succeed is lossless and saves a full
+        // extra pass over the token's bytes, which otherwise shows up on
+        // high-precision inputs such as canada.json
+        if (mantissa_fits_clinger(mantissa_end)
+                && parse_float_fast(num_begin, num_end, value_float))
        {
            return token_type::value_float;
        }

-        convert_float_locale_aware(token_buffer, decimal_point_position, value_float);
+        convert_float_locale_aware();
        return token_type::value_float;
    }

+    /*!
+    @brief convert the float in token_buffer with strtof/strtod/strtold
+
+    These functions expect the decimal point of the *current* locale, so it is
+    looked up right before the conversion instead of once when the lexer is
+    constructed: a locale change in between (by a parser callback, a SAX
+    handler, or another thread) must not truncate the value (#5198). The
+    token has been validated before, so if the conversion stops early and the
+    decimal point changed in the meantime, the locale changed between the
+    lookup and the call, and the conversion is repeated with the new decimal
+    point. If the decimal point did not change, a retry cannot succeed: the
+    locale's decimal point is not a single character (e.g., the two-byte
+    U+066B of ar_EG.UTF-8 or fa_IR.UTF-8) and cannot be substituted in place.
+    The value strtod parsed up to that point is kept, as before this change.
+
+    Note that changing the locale in another thread *while* strtod runs is
+    undefined behavior of the C library, which this function cannot prevent.
+    */
+    void convert_float_locale_aware()
+    {
+        const bool has_dot = decimal_point_position != std::string::npos;
+        char decimal_point = get_decimal_point();
+        for (;;)
+        {
+            const bool substitute = has_dot && decimal_point != '.';
+            if (substitute)
+            {
+                token_buffer[decimal_point_position] = static_cast<typename string_t::value_type>(decimal_point);
+            }
+
+            char* endptr = nullptr; // NOLINT(misc-const-correctness,cppcoreguidelines-pro-type-vararg,hicpp-vararg)
+            strtof(value_float, token_buffer.data(), &endptr);
+
+            if (substitute)
+            {
+                // get_string() hands the token to the SAX interface with '.'
+                token_buffer[decimal_point_position] = '.';
+            }
+
+            if (JSON_HEDLEY_LIKELY(endptr == token_buffer.data() + token_buffer.size()))
+            {
+                return;
+            }
+
+            // retry only if the locale changed; otherwise, this would loop forever
+            const char current_decimal_point = get_decimal_point();
+            if (current_decimal_point == decimal_point)
+            {
+                return;
+            }
+            decimal_point = current_decimal_point;
+        }
+    }
+
    /*!
    @brief contiguous fast path for scanning a number

@@ -3,7 +3,6 @@
 // |  |  |__   |  |  | | | |  version 3.12.0
 // |_____|_____|_____|_|___|  https://github.com/nlohmann/json
 //
-// SPDX-FileCopyrightText: 2021 The fast_float authors <https://github.com/fastfloat/fast_float>
 // SPDX-FileCopyrightText: 2013-2026 Niels Lohmann <https://nlohmann.me>
 // SPDX-License-Identifier: MIT

@@ -11,16 +10,10 @@

 #include <array> // array
 #include <cfloat> // FLT_EVAL_METHOD
-#include <clocale> // localeconv
 #include <cstddef> // size_t
 #include <cstdint> // int64_t, uint64_t
-#include <cstdlib> // strtof, strtod, strtold
-#include <cstring> // memcpy
 #include <limits> // numeric_limits
-#include <string> // string

-#include <nlohmann/detail/bit_ops.hpp>
-#include <nlohmann/detail/input/pow5_table.hpp>
 #include <nlohmann/detail/macro_scope.hpp>

 // std::from_chars lives in <charconv>, but being in C++17 mode does not
@@ -36,9 +29,8 @@

 // This file contains the value-conversion helpers used by the lexer to turn an
 // already-validated number token into a value, without the locale/errno
-// overhead of std::strtoull/std::strtod where possible. They are free functions
-// so the lexer stays focused on scanning (see lexer::convert_number()) and so
-// that other parsers of JSON text can convert tokens exactly like it does.
+// overhead of std::strtoull/std::strtod. They are free functions so the lexer
+// stays focused on scanning; see lexer::convert_number().

 NLOHMANN_JSON_NAMESPACE_BEGIN
 namespace detail
@@ -301,415 +293,5 @@ bool parse_float_from_chars(const char* first, const char* last, FloatType& out)
 #endif
 }

-/// whether the eight bytes of @a v (see read_eight_bytes()) are ASCII digits
-/// (after fast_float's is_made_of_eight_digits_fast)
-inline bool is_eight_digits(std::uint64_t v) noexcept
-{
-    return ((v & 0xF0F0F0F0F0F0F0F0u) | (((v + 0x0606060606060606u) & 0xF0F0F0F0F0F0F0F0u) >> 4u)) == 0x3333333333333333u;
-}
-
-/// the value of the eight ASCII digits in @a v (see read_eight_bytes()), three
-/// multiplications instead of eight (after simdjson and fast_float)
-inline std::uint32_t parse_eight_digits(std::uint64_t v) noexcept
-{
-    v = ((v & 0x0F0F0F0F0F0F0F0Fu) * 2561u) >> 8u;
-    v = ((v & 0x00FF00FF00FF00FFu) * 6553601u) >> 16u;
-    return static_cast<std::uint32_t>(((v & 0x0000FFFF0000FFFFu) * 42949672960001u) >> 32u);
-}
-
-/*!
-@brief the double nearest to w * 10^q (Eisel-Lemire)
-
-The algorithm of Daniel Lemire, "Number Parsing at a Gigabyte per Second"
-(Software: Practice and Experience, 2021), after fast_float's compute_float
-(used under the MIT license). With a 128-bit approximation of 5^q, the product
-is always sufficient to round correctly for w with at most 19 digits (Noble
-Mushtak and Daniel Lemire, "Fast number parsing without fallback", Software:
-Practice and Experience, 2023). Only integer arithmetic is used, so the result
-does not depend on the floating-point environment.
-
-@param[in] q  decimal exponent
-@param[in] w  significand, w != 0
-@return the IEEE-754 bits of the positive result (0 for underflow, infinity
-        for overflow)
-*/
-inline std::uint64_t eisel_lemire(std::int64_t q, std::uint64_t w) noexcept
-{
-    constexpr int mantissa_bits = 52;
-    constexpr std::uint64_t infinity = std::uint64_t{0x7FF} << mantissa_bits;
-    if (q < pow5_128_smallest_power)
-    {
-        return 0;
-    }
-    if (q > pow5_128_largest_power)
-    {
-        return infinity;
-    }
-
-    const int lz = count_leading_zeros(w);
-    w <<= static_cast<unsigned>(lz);
-    const auto index = static_cast<std::size_t>(2 * (q - pow5_128_smallest_power));
-    uint128_parts product = full_multiplication(w, pow5_128()[index]);
-    constexpr std::uint64_t precision_mask = 0xFFFFFFFFFFFFFFFFu >> (mantissa_bits + 3);
-    if ((product.high & precision_mask) == precision_mask)
-    {
-        // the lower bits may carry into the result: use the next 64 bits of 5^q
-        const uint128_parts second = full_multiplication(w, pow5_128()[index + 1]);
-        product.low += second.high;
-        if (second.high > product.low)
-        {
-            ++product.high;
-        }
-    }
-
-    const auto upperbit = static_cast<int>(product.high >> 63u);
-    const int shift = upperbit + 64 - mantissa_bits - 3;
-    std::uint64_t mantissa = product.high >> static_cast<unsigned>(shift);
-    // floor(log2(10^q)) + 63 + 1023, with log2(10) ~ 217706 / 2^16
-    std::int64_t power2 = (((152170 + 65536) * q) >> 16) + 63 + upperbit - lz + 1023;
-
-    if (power2 <= 0) // subnormal
-    {
-        if (-power2 + 1 >= 64)
-        {
-            return 0;
-        }
-        mantissa >>= static_cast<unsigned>(-power2 + 1);
-        mantissa += (mantissa & 1u);
-        mantissa >>= 1u;
-        // rounding up may produce the smallest normal number
-        power2 = (mantissa < (std::uint64_t{1} << mantissa_bits)) ? 0 : 1;
-        return mantissa | (static_cast<std::uint64_t>(power2) << mantissa_bits);
-    }
-
-    // a value exactly between two doubles rounds to even; this can only
-    // happen for small |q|, where 5^q is exact
-    if (product.low <= 1 && q >= -4 && q <= 23 && (mantissa & 3u) == 1
-            && (mantissa << static_cast<unsigned>(shift)) == product.high)
-    {
-        mantissa &= ~std::uint64_t{1};
-    }
-    mantissa += (mantissa & 1u);
-    mantissa >>= 1u;
-    if (mantissa >= (std::uint64_t{2} << mantissa_bits))
-    {
-        mantissa = std::uint64_t{1} << mantissa_bits;
-        ++power2;
-    }
-    mantissa &= ~(std::uint64_t{1} << mantissa_bits);
-    if (power2 >= 0x7FF)
-    {
-        return infinity;
-    }
-    return mantissa | (static_cast<std::uint64_t>(power2) << mantissa_bits);
-}
-
-/*!
-@brief parse a validated float token with the Eisel-Lemire algorithm
-
-The significand is accumulated eight digits at a time where possible. A token
-with more than 19 significant digits is truncated to w; the value then lies
-in [w, w + 1) * 10^q, and it is only returned if both ends round to the same
-double, which covers all but a few such tokens.
-
-@param[in]  first  pointer to the first character of the token
-@param[in]  last   pointer past the last character
-@param[out] out    the correctly rounded value on success (±infinity if it
-                   overflows, like strtod)
-@return true on success; false if strtod must decide
-*/
-inline bool parse_float_eisel_lemire(const char* first, const char* last, double& out) noexcept
-{
-    const char* p = first;
-    const bool negative = (p != last && *p == '-');
-    if (negative)
-    {
-        ++p;
-    }
-
-    std::uint64_t w = 0;
-    int digits = 0; // significant digits in w
-    std::int64_t exponent = 0;
-    bool truncated = false;
-    bool in_fraction = false;
-    for (;;)
-    {
-        // eight digits at a time, as long as they fit into w
-        while (w != 0 && digits <= 19 - 8 && last - p >= 8)
-        {
-            const std::uint64_t v = read_eight_bytes(p);
-            if (!is_eight_digits(v))
-            {
-                break;
-            }
-            w = (w * 100000000u) + parse_eight_digits(v);
-            digits += 8;
-            exponent -= in_fraction ? 8 : 0;
-            p += 8;
-        }
-        if (p == last)
-        {
-            break;
-        }
-        const char c = *p;
-        if (c >= '0' && c <= '9')
-        {
-            if (w == 0 && c == '0')
-            {
-                // leading zeros are not significant, but scale a fraction
-                exponent -= in_fraction ? 1 : 0;
-            }
-            else if (digits < 19)
-            {
-                w = (w * 10u) + static_cast<std::uint64_t>(c - '0');
-                ++digits;
-                exponent -= in_fraction ? 1 : 0;
-            }
-            else
-            {
-                // dropped: the value lies between w and w + 1 (in units of
-                // the last kept digit) unless all dropped digits are zero
-                truncated = truncated || c != '0';
-                exponent += in_fraction ? 0 : 1;
-            }
-            ++p;
-        }
-        else if (c == '.')
-        {
-            in_fraction = true;
-            ++p;
-        }
-        else
-        {
-            break; // 'e' or 'E'
-        }
-    }
-
-    if (p != last)
-    {
-        ++p; // 'e' or 'E'
-        bool exp_negative = false;
-        if (p != last && (*p == '-' || *p == '+'))
-        {
-            exp_negative = (*p == '-');
-            ++p;
-        }
-        std::int64_t exp_value = 0;
-        for (; p != last; ++p)
-        {
-            // saturate: any exponent beyond this under- or overflows anyway
-            if (exp_value < 100000)
-            {
-                exp_value = (exp_value * 10) + (*p - '0');
-            }
-        }
-        exponent += exp_negative ? -exp_value : exp_value;
-    }
-
-    std::uint64_t bits = 0;
-    if (w != 0)
-    {
-        bits = eisel_lemire(exponent, w);
-        if (truncated && (w + 1 == 0 || eisel_lemire(exponent, w + 1) != bits))
-        {
-            return false;
-        }
-    }
-    bits |= negative ? (std::uint64_t{1} << 63u) : 0u;
-    static_assert(sizeof(double) == sizeof(std::uint64_t), "double must have 64 bits");
-    std::memcpy(&out, &bits, sizeof(out));
-    return true;
-}
-
-/// Eisel-Lemire is only implemented for `double`
-template<typename FloatType>
-bool parse_float_eisel_lemire(const char* /*first*/, const char* /*last*/, FloatType& /*out*/) noexcept
-{
-    return false;
-}
-
-/*!
-@brief check whether Clinger's fast path can still succeed for a float token
-
-parse_float_fast() needs a significand below 2^53. A mantissa with 17 or
-more significant digits is at least 10^16 and therefore always exceeds it,
-so calling the fast path would walk the token one extra time only to
-decline before strtod has to run anyway.
-
-Significant digits are the mantissa's digits from the first nonzero one on;
-the sign, the decimal point, leading zeros, and the exponent do not count.
-The answer is derived from indices - the digits are not scanned again - so
-this stays off the hot path of the number scanners.
-
-@param[in] token                   the validated number token ('.' as decimal point)
-@param[in] decimal_point_position  index of the '.' in @a token, or
-                                   std::string::npos if there is none
-@param[in] mantissa_end            offset just past the last mantissa byte
-@return false if parse_float_fast() is guaranteed to decline
-*/
-inline bool mantissa_fits_clinger(const char* token, std::size_t decimal_point_position, std::size_t mantissa_end) noexcept
-{
-    // 10^16 already exceeds 2^53, so 17 digits can never fit
-    constexpr std::size_t limit = 17;
-
-    const std::size_t neg = (token[0] == '-') ? 1u : 0u;
-    const std::size_t has_dot = (decimal_point_position != std::string::npos) ? 1u : 0u;
-    // the JSON grammar restricts the integer part to "0" or [1-9][0-9]*, so
-    // a leading zero can only be a lone "0", which is not significant
-    const std::size_t lead_zero = (token[neg] == '0') ? 1u : 0u;
-    JSON_ASSERT(mantissa_end >= neg + has_dot + lead_zero);
-    std::size_t digits = mantissa_end - neg - has_dot - lead_zero;
-
-    if (JSON_HEDLEY_LIKELY(digits < limit))
-    {
-        return true;
-    }
-
-    // Only a number below 1 can carry further insignificant zeros, and only
-    // while the count stays at the limit does removing them change the
-    // answer - so this loop is skipped for all but a few tokens. The
-    // fraction is located through decimal_point_position rather than by
-    // searching '.'.
-    if (lead_zero != 0)
-    {
-        JSON_ASSERT(has_dot != 0); // an integer "0" cannot reach the limit
-        for (std::size_t i = decimal_point_position + 1;
-                digits >= limit && i < mantissa_end && token[i] == '0'; ++i)
-        {
-            --digits;
-        }
-    }
-
-    return digits < limit;
-}
-
-/*!
-@brief convert a validated float token without the C library, if possible
-
-Tries std::from_chars (when available), Clinger's exact fast path (double
-only, skipped when it cannot succeed), and the Eisel-Lemire algorithm (double
-only).
-
-@param[in]  first                   pointer to the first character of the token
-@param[in]  last                    pointer past the last character
-@param[in]  decimal_point_position  index of the '.' in the token, or
-                                    std::string::npos if there is none
-@param[in]  mantissa_end            offset just past the last mantissa byte (the
-                                    index of 'e'/'E', or the token length)
-@param[out] value                   the converted value on success
-@return true if the value was converted; false if convert_float_locale_aware()
-        must convert it
-*/
-template<typename FloatType>
-bool convert_float_fast(const char* first, const char* last, std::size_t decimal_point_position,
-                        std::size_t mantissa_end, FloatType& value) noexcept
-{
-    if (parse_float_from_chars(first, last, value))
-    {
-        return true;
-    }
-    // Skipping a fast path that cannot succeed is lossless and saves a full
-    // extra pass over the token's bytes, which otherwise shows up on
-    // high-precision inputs such as canada.json
-    if (mantissa_fits_clinger(first, decimal_point_position, mantissa_end)
-            && parse_float_fast(first, last, value))
-    {
-        return true;
-    }
-    return parse_float_eisel_lemire(first, last, value);
-}
-
-/// std::strtof, std::strtod, or std::strtold, chosen by the type of @a f
-JSON_HEDLEY_NON_NULL(2)
-inline void strtof_by_type(float& f, const char* str, char** endptr) noexcept
-{
-    f = std::strtof(str, endptr);
-}
-
-/// std::strtof, std::strtod, or std::strtold, chosen by the type of @a f
-JSON_HEDLEY_NON_NULL(2)
-inline void strtof_by_type(double& f, const char* str, char** endptr) noexcept
-{
-    f = std::strtod(str, endptr);
-}
-
-/// std::strtof, std::strtod, or std::strtold, chosen by the type of @a f
-JSON_HEDLEY_NON_NULL(2)
-inline void strtof_by_type(long double& f, const char* str, char** endptr) noexcept
-{
-    f = std::strtold(str, endptr);
-}
-
-/// return the decimal point of the current locale
-inline char get_decimal_point() noexcept
-{
-    const auto* loc = localeconv();
-    JSON_ASSERT(loc != nullptr);
-    return (loc->decimal_point == nullptr) ? '.' : *(loc->decimal_point);
-}
-
-/*!
-@brief convert a validated float token with strtof/strtod/strtold
-
-These functions expect the decimal point of the *current* locale, so it is
-looked up right before the conversion instead of once when the lexer is
-constructed: a locale change in between (by a parser callback, a SAX
-handler, or another thread) must not truncate the value (#5198). The
-token has been validated before, so if the conversion stops early and the
-decimal point changed in the meantime, the locale changed between the
-lookup and the call, and the conversion is repeated with the new decimal
-point. If the decimal point did not change, a retry cannot succeed: the
-locale's decimal point is not a single character (e.g., the two-byte
-U+066B of ar_EG.UTF-8 or fa_IR.UTF-8) and cannot be substituted in place.
-The value strtod parsed up to that point is kept, as before this change.
-
-Note that changing the locale in another thread *while* strtod runs is
-undefined behavior of the C library, which this function cannot prevent.
-
-@param[in,out] token                   the token with '.' as decimal point; its
-                                       decimal point is replaced during the
-                                       conversion and restored afterwards
-                                       (data() must be NUL-terminated)
-@param[in]     decimal_point_position  index of the '.' in @a token, or
-                                       std::string::npos if there is none
-@param[out]    value                   the converted value
-*/
-template<typename StringType, typename FloatType>
-void convert_float_locale_aware(StringType& token, std::size_t decimal_point_position, FloatType& value)
-{
-    const bool has_dot = decimal_point_position != std::string::npos;
-    char decimal_point = get_decimal_point();
-    for (;;)
-    {
-        const bool substitute = has_dot && decimal_point != '.';
-        if (substitute)
-        {
-            token[decimal_point_position] = static_cast<typename StringType::value_type>(decimal_point);
-        }
-
-        char* endptr = nullptr; // NOLINT(misc-const-correctness,cppcoreguidelines-pro-type-vararg,hicpp-vararg)
-        strtof_by_type(value, token.data(), &endptr);
-
-        if (substitute)
-        {
-            // the caller hands the token on (e.g. to the SAX interface) with '.'
-            token[decimal_point_position] = '.';
-        }
-
-        if (JSON_HEDLEY_LIKELY(endptr == token.data() + token.size()))
-        {
-            return;
-        }
-
-        // retry only if the locale changed; otherwise, this would loop forever
-        const char current_decimal_point = get_decimal_point();
-        if (current_decimal_point == decimal_point)
-        {
-            return;
-        }
-        decimal_point = current_decimal_point;
-    }
-}
-
 }  // namespace detail
 NLOHMANN_JSON_NAMESPACE_END
@@ -1,371 +0,0 @@
-//     __ _____ _____ _____
-//  __|  |   __|     |   | |  JSON for Modern C++
-// |  |  |__   |  |  | | | |  version 3.12.0
-// |_____|_____|_____|_|___|  https://github.com/nlohmann/json
-//
-// SPDX-FileCopyrightText: 2021 The fast_float authors <https://github.com/fastfloat/fast_float>
-// SPDX-FileCopyrightText: 2013-2026 Niels Lohmann <https://nlohmann.me>
-// SPDX-License-Identifier: MIT
-
-#pragma once
-
-#include <array> // array
-#include <cstdint> // int64_t, uint64_t
-
-#include <nlohmann/detail/abi_macros.hpp>
-
-NLOHMANN_JSON_NAMESPACE_BEGIN
-namespace detail
-{
-
-/// the range of decimal exponents covered by pow5_128()
-constexpr std::int64_t pow5_128_smallest_power = -342;
-constexpr std::int64_t pow5_128_largest_power = 308;
-
-/*!
-@brief 128-bit approximations of 5^q for q in [-342, 308]
-
-Entry q (at index 2 * (q + 342)) holds the most significant 128 bits of 5^q,
-normalized so that the highest bit is set: for q >= 0 the truncated value, for
-q < 0 the value rounded up. This is the table of fast_float (Daniel Lemire and
-contributors, used under the MIT license), generated like its
-script/table_generation.py; unit-class_lexer.cpp recomputes every entry.
-*/
-inline const std::array<std::uint64_t, 1302>& pow5_128() noexcept
-{
-    static const std::array<std::uint64_t, 1302> table =
-    {
-        {
-            0xeef453d6923bd65au, 0x113faa2906a13b3fu, 0x9558b4661b6565f8u, 0x4ac7ca59a424c507u,
-            0xbaaee17fa23ebf76u, 0x5d79bcf00d2df649u, 0xe95a99df8ace6f53u, 0xf4d82c2c107973dcu,
-            0x91d8a02bb6c10594u, 0x79071b9b8a4be869u, 0xb64ec836a47146f9u, 0x9748e2826cdee284u,
-            0xe3e27a444d8d98b7u, 0xfd1b1b2308169b25u, 0x8e6d8c6ab0787f72u, 0xfe30f0f5e50e20f7u,
-            0xb208ef855c969f4fu, 0xbdbd2d335e51a935u, 0xde8b2b66b3bc4723u, 0xad2c788035e61382u,
-            0x8b16fb203055ac76u, 0x4c3bcb5021afcc31u, 0xaddcb9e83c6b1793u, 0xdf4abe242a1bbf3du,
-            0xd953e8624b85dd78u, 0xd71d6dad34a2af0du, 0x87d4713d6f33aa6bu, 0x8672648c40e5ad68u,
-            0xa9c98d8ccb009506u, 0x680efdaf511f18c2u, 0xd43bf0effdc0ba48u, 0x0212bd1b2566def2u,
-            0x84a57695fe98746du, 0x014bb630f7604b57u, 0xa5ced43b7e3e9188u, 0x419ea3bd35385e2du,
-            0xcf42894a5dce35eau, 0x52064cac828675b9u, 0x818995ce7aa0e1b2u, 0x7343efebd1940993u,
-            0xa1ebfb4219491a1fu, 0x1014ebe6c5f90bf8u, 0xca66fa129f9b60a6u, 0xd41a26e077774ef6u,
-            0xfd00b897478238d0u, 0x8920b098955522b4u, 0x9e20735e8cb16382u, 0x55b46e5f5d5535b0u,
-            0xc5a890362fddbc62u, 0xeb2189f734aa831du, 0xf712b443bbd52b7bu, 0xa5e9ec7501d523e4u,
-            0x9a6bb0aa55653b2du, 0x47b233c92125366eu, 0xc1069cd4eabe89f8u, 0x999ec0bb696e840au,
-            0xf148440a256e2c76u, 0xc00670ea43ca250du, 0x96cd2a865764dbcau, 0x380406926a5e5728u,
-            0xbc807527ed3e12bcu, 0xc605083704f5ecf2u, 0xeba09271e88d976bu, 0xf7864a44c633682eu,
-            0x93445b8731587ea3u, 0x7ab3ee6afbe0211du, 0xb8157268fdae9e4cu, 0x5960ea05bad82964u,
-            0xe61acf033d1a45dfu, 0x6fb92487298e33bdu, 0x8fd0c16206306babu, 0xa5d3b6d479f8e056u,
-            0xb3c4f1ba87bc8696u, 0x8f48a4899877186cu, 0xe0b62e2929aba83cu, 0x331acdabfe94de87u,
-            0x8c71dcd9ba0b4925u, 0x9ff0c08b7f1d0b14u, 0xaf8e5410288e1b6fu, 0x07ecf0ae5ee44dd9u,
-            0xdb71e91432b1a24au, 0xc9e82cd9f69d6150u, 0x892731ac9faf056eu, 0xbe311c083a225cd2u,
-            0xab70fe17c79ac6cau, 0x6dbd630a48aaf406u, 0xd64d3d9db981787du, 0x092cbbccdad5b108u,
-            0x85f0468293f0eb4eu, 0x25bbf56008c58ea5u, 0xa76c582338ed2621u, 0xaf2af2b80af6f24eu,
-            0xd1476e2c07286faau, 0x1af5af660db4aee1u, 0x82cca4db847945cau, 0x50d98d9fc890ed4du,
-            0xa37fce126597973cu, 0xe50ff107bab528a0u, 0xcc5fc196fefd7d0cu, 0x1e53ed49a96272c8u,
-            0xff77b1fcbebcdc4fu, 0x25e8e89c13bb0f7au, 0x9faacf3df73609b1u, 0x77b191618c54e9acu,
-            0xc795830d75038c1du, 0xd59df5b9ef6a2417u, 0xf97ae3d0d2446f25u, 0x4b0573286b44ad1du,
-            0x9becce62836ac577u, 0x4ee367f9430aec32u, 0xc2e801fb244576d5u, 0x229c41f793cda73fu,
-            0xf3a20279ed56d48au, 0x6b43527578c1110fu, 0x9845418c345644d6u, 0x830a13896b78aaa9u,
-            0xbe5691ef416bd60cu, 0x23cc986bc656d553u, 0xedec366b11c6cb8fu, 0x2cbfbe86b7ec8aa8u,
-            0x94b3a202eb1c3f39u, 0x7bf7d71432f3d6a9u, 0xb9e08a83a5e34f07u, 0xdaf5ccd93fb0cc53u,
-            0xe858ad248f5c22c9u, 0xd1b3400f8f9cff68u, 0x91376c36d99995beu, 0x23100809b9c21fa1u,
-            0xb58547448ffffb2du, 0xabd40a0c2832a78au, 0xe2e69915b3fff9f9u, 0x16c90c8f323f516cu,
-            0x8dd01fad907ffc3bu, 0xae3da7d97f6792e3u, 0xb1442798f49ffb4au, 0x99cd11cfdf41779cu,
-            0xdd95317f31c7fa1du, 0x40405643d711d583u, 0x8a7d3eef7f1cfc52u, 0x482835ea666b2572u,
-            0xad1c8eab5ee43b66u, 0xda3243650005eecfu, 0xd863b256369d4a40u, 0x90bed43e40076a82u,
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-            0x9dc5ada82b70b59du, 0xf020000000000000u, 0xc5371912364ce305u, 0x6c28000000000000u,
-            0xf684df56c3e01bc6u, 0xc732000000000000u, 0x9a130b963a6c115cu, 0x3c7f400000000000u,
-            0xc097ce7bc90715b3u, 0x4b9f100000000000u, 0xf0bdc21abb48db20u, 0x1e86d40000000000u,
-            0x96769950b50d88f4u, 0x1314448000000000u, 0xbc143fa4e250eb31u, 0x17d955a000000000u,
-            0xeb194f8e1ae525fdu, 0x5dcfab0800000000u, 0x92efd1b8d0cf37beu, 0x5aa1cae500000000u,
-            0xb7abc627050305adu, 0xf14a3d9e40000000u, 0xe596b7b0c643c719u, 0x6d9ccd05d0000000u,
-            0x8f7e32ce7bea5c6fu, 0xe4820023a2000000u, 0xb35dbf821ae4f38bu, 0xdda2802c8a800000u,
-            0xe0352f62a19e306eu, 0xd50b2037ad200000u, 0x8c213d9da502de45u, 0x4526f422cc340000u,
-            0xaf298d050e4395d6u, 0x9670b12b7f410000u, 0xdaf3f04651d47b4cu, 0x3c0cdd765f114000u,
-            0x88d8762bf324cd0fu, 0xa5880a69fb6ac800u, 0xab0e93b6efee0053u, 0x8eea0d047a457a00u,
-            0xd5d238a4abe98068u, 0x72a4904598d6d880u, 0x85a36366eb71f041u, 0x47a6da2b7f864750u,
-            0xa70c3c40a64e6c51u, 0x999090b65f67d924u, 0xd0cf4b50cfe20765u, 0xfff4b4e3f741cf6du,
-            0x82818f1281ed449fu, 0xbff8f10e7a8921a4u, 0xa321f2d7226895c7u, 0xaff72d52192b6a0du,
-            0xcbea6f8ceb02bb39u, 0x9bf4f8a69f764490u, 0xfee50b7025c36a08u, 0x02f236d04753d5b4u,
-            0x9f4f2726179a2245u, 0x01d762422c946590u, 0xc722f0ef9d80aad6u, 0x424d3ad2b7b97ef5u,
-            0xf8ebad2b84e0d58bu, 0xd2e0898765a7deb2u, 0x9b934c3b330c8577u, 0x63cc55f49f88eb2fu,
-            0xc2781f49ffcfa6d5u, 0x3cbf6b71c76b25fbu, 0xf316271c7fc3908au, 0x8bef464e3945ef7au,
-            0x97edd871cfda3a56u, 0x97758bf0e3cbb5acu, 0xbde94e8e43d0c8ecu, 0x3d52eeed1cbea317u,
-            0xed63a231d4c4fb27u, 0x4ca7aaa863ee4bddu, 0x945e455f24fb1cf8u, 0x8fe8caa93e74ef6au,
-            0xb975d6b6ee39e436u, 0xb3e2fd538e122b44u, 0xe7d34c64a9c85d44u, 0x60dbbca87196b616u,
-            0x90e40fbeea1d3a4au, 0xbc8955e946fe31cdu, 0xb51d13aea4a488ddu, 0x6babab6398bdbe41u,
-            0xe264589a4dcdab14u, 0xc696963c7eed2dd1u, 0x8d7eb76070a08aecu, 0xfc1e1de5cf543ca2u,
-            0xb0de65388cc8ada8u, 0x3b25a55f43294bcbu, 0xdd15fe86affad912u, 0x49ef0eb713f39ebeu,
-            0x8a2dbf142dfcc7abu, 0x6e3569326c784337u, 0xacb92ed9397bf996u, 0x49c2c37f07965404u,
-            0xd7e77a8f87daf7fbu, 0xdc33745ec97be906u, 0x86f0ac99b4e8dafdu, 0x69a028bb3ded71a3u,
-            0xa8acd7c0222311bcu, 0xc40832ea0d68ce0cu, 0xd2d80db02aabd62bu, 0xf50a3fa490c30190u,
-            0x83c7088e1aab65dbu, 0x792667c6da79e0fau, 0xa4b8cab1a1563f52u, 0x577001b891185938u,
-            0xcde6fd5e09abcf26u, 0xed4c0226b55e6f86u, 0x80b05e5ac60b6178u, 0x544f8158315b05b4u,
-            0xa0dc75f1778e39d6u, 0x696361ae3db1c721u, 0xc913936dd571c84cu, 0x03bc3a19cd1e38e9u,
-            0xfb5878494ace3a5fu, 0x04ab48a04065c723u, 0x9d174b2dcec0e47bu, 0x62eb0d64283f9c76u,
-            0xc45d1df942711d9au, 0x3ba5d0bd324f8394u, 0xf5746577930d6500u, 0xca8f44ec7ee36479u,
-            0x9968bf6abbe85f20u, 0x7e998b13cf4e1ecbu, 0xbfc2ef456ae276e8u, 0x9e3fedd8c321a67eu,
-            0xefb3ab16c59b14a2u, 0xc5cfe94ef3ea101eu, 0x95d04aee3b80ece5u, 0xbba1f1d158724a12u,
-            0xbb445da9ca61281fu, 0x2a8a6e45ae8edc97u, 0xea1575143cf97226u, 0xf52d09d71a3293bdu,
-            0x924d692ca61be758u, 0x593c2626705f9c56u, 0xb6e0c377cfa2e12eu, 0x6f8b2fb00c77836cu,
-            0xe498f455c38b997au, 0x0b6dfb9c0f956447u, 0x8edf98b59a373fecu, 0x4724bd4189bd5eacu,
-            0xb2977ee300c50fe7u, 0x58edec91ec2cb657u, 0xdf3d5e9bc0f653e1u, 0x2f2967b66737e3edu,
-            0x8b865b215899f46cu, 0xbd79e0d20082ee74u, 0xae67f1e9aec07187u, 0xecd8590680a3aa11u,
-            0xda01ee641a708de9u, 0xe80e6f4820cc9495u, 0x884134fe908658b2u, 0x3109058d147fdcddu,
-            0xaa51823e34a7eedeu, 0xbd4b46f0599fd415u, 0xd4e5e2cdc1d1ea96u, 0x6c9e18ac7007c91au,
-            0x850fadc09923329eu, 0x03e2cf6bc604ddb0u, 0xa6539930bf6bff45u, 0x84db8346b786151cu,
-            0xcfe87f7cef46ff16u, 0xe612641865679a63u, 0x81f14fae158c5f6eu, 0x4fcb7e8f3f60c07eu,
-            0xa26da3999aef7749u, 0xe3be5e330f38f09du, 0xcb090c8001ab551cu, 0x5cadf5bfd3072cc5u,
-            0xfdcb4fa002162a63u, 0x73d9732fc7c8f7f6u, 0x9e9f11c4014dda7eu, 0x2867e7fddcdd9afau,
-            0xc646d63501a1511du, 0xb281e1fd541501b8u, 0xf7d88bc24209a565u, 0x1f225a7ca91a4226u,
-            0x9ae757596946075fu, 0x3375788de9b06958u, 0xc1a12d2fc3978937u, 0x0052d6b1641c83aeu,
-            0xf209787bb47d6b84u, 0xc0678c5dbd23a49au, 0x9745eb4d50ce6332u, 0xf840b7ba963646e0u,
-            0xbd176620a501fbffu, 0xb650e5a93bc3d898u, 0xec5d3fa8ce427affu, 0xa3e51f138ab4cebeu,
-            0x93ba47c980e98cdfu, 0xc66f336c36b10137u, 0xb8a8d9bbe123f017u, 0xb80b0047445d4184u,
-            0xe6d3102ad96cec1du, 0xa60dc059157491e5u, 0x9043ea1ac7e41392u, 0x87c89837ad68db2fu,
-            0xb454e4a179dd1877u, 0x29babe4598c311fbu, 0xe16a1dc9d8545e94u, 0xf4296dd6fef3d67au,
-            0x8ce2529e2734bb1du, 0x1899e4a65f58660cu, 0xb01ae745b101e9e4u, 0x5ec05dcff72e7f8fu,
-            0xdc21a1171d42645du, 0x76707543f4fa1f73u, 0x899504ae72497ebau, 0x6a06494a791c53a8u,
-            0xabfa45da0edbde69u, 0x0487db9d17636892u, 0xd6f8d7509292d603u, 0x45a9d2845d3c42b6u,
-            0x865b86925b9bc5c2u, 0x0b8a2392ba45a9b2u, 0xa7f26836f282b732u, 0x8e6cac7768d7141eu,
-            0xd1ef0244af2364ffu, 0x3207d795430cd926u, 0x8335616aed761f1fu, 0x7f44e6bd49e807b8u,
-            0xa402b9c5a8d3a6e7u, 0x5f16206c9c6209a6u, 0xcd036837130890a1u, 0x36dba887c37a8c0fu,
-            0x802221226be55a64u, 0xc2494954da2c9789u, 0xa02aa96b06deb0fdu, 0xf2db9baa10b7bd6cu,
-            0xc83553c5c8965d3du, 0x6f92829494e5acc7u, 0xfa42a8b73abbf48cu, 0xcb772339ba1f17f9u,
-            0x9c69a97284b578d7u, 0xff2a760414536efbu, 0xc38413cf25e2d70du, 0xfef5138519684abau,
-            0xf46518c2ef5b8cd1u, 0x7eb258665fc25d69u, 0x98bf2f79d5993802u, 0xef2f773ffbd97a61u,
-            0xbeeefb584aff8603u, 0xaafb550ffacfd8fau, 0xeeaaba2e5dbf6784u, 0x95ba2a53f983cf38u,
-            0x952ab45cfa97a0b2u, 0xdd945a747bf26183u, 0xba756174393d88dfu, 0x94f971119aeef9e4u,
-            0xe912b9d1478ceb17u, 0x7a37cd5601aab85du, 0x91abb422ccb812eeu, 0xac62e055c10ab33au,
-            0xb616a12b7fe617aau, 0x577b986b314d6009u, 0xe39c49765fdf9d94u, 0xed5a7e85fda0b80bu,
-            0x8e41ade9fbebc27du, 0x14588f13be847307u, 0xb1d219647ae6b31cu, 0x596eb2d8ae258fc8u,
-            0xde469fbd99a05fe3u, 0x6fca5f8ed9aef3bbu, 0x8aec23d680043beeu, 0x25de7bb9480d5854u,
-            0xada72ccc20054ae9u, 0xaf561aa79a10ae6au, 0xd910f7ff28069da4u, 0x1b2ba1518094da04u,
-            0x87aa9aff79042286u, 0x90fb44d2f05d0842u, 0xa99541bf57452b28u, 0x353a1607ac744a53u,
-            0xd3fa922f2d1675f2u, 0x42889b8997915ce8u, 0x847c9b5d7c2e09b7u, 0x69956135febada11u,
-            0xa59bc234db398c25u, 0x43fab9837e699095u, 0xcf02b2c21207ef2eu, 0x94f967e45e03f4bbu,
-            0x8161afb94b44f57du, 0x1d1be0eebac278f5u, 0xa1ba1ba79e1632dcu, 0x6462d92a69731732u,
-            0xca28a291859bbf93u, 0x7d7b8f7503cfdcfeu, 0xfcb2cb35e702af78u, 0x5cda735244c3d43eu,
-            0x9defbf01b061adabu, 0x3a0888136afa64a7u, 0xc56baec21c7a1916u, 0x088aaa1845b8fdd0u,
-            0xf6c69a72a3989f5bu, 0x8aad549e57273d45u, 0x9a3c2087a63f6399u, 0x36ac54e2f678864bu,
-            0xc0cb28a98fcf3c7fu, 0x84576a1bb416a7ddu, 0xf0fdf2d3f3c30b9fu, 0x656d44a2a11c51d5u,
-            0x969eb7c47859e743u, 0x9f644ae5a4b1b325u, 0xbc4665b596706114u, 0x873d5d9f0dde1feeu,
-            0xeb57ff22fc0c7959u, 0xa90cb506d155a7eau, 0x9316ff75dd87cbd8u, 0x09a7f12442d588f2u,
-            0xb7dcbf5354e9beceu, 0x0c11ed6d538aeb2fu, 0xe5d3ef282a242e81u, 0x8f1668c8a86da5fau,
-            0x8fa475791a569d10u, 0xf96e017d694487bcu, 0xb38d92d760ec4455u, 0x37c981dcc395a9acu,
-            0xe070f78d3927556au, 0x85bbe253f47b1417u, 0x8c469ab843b89562u, 0x93956d7478ccec8eu,
-            0xaf58416654a6babbu, 0x387ac8d1970027b2u, 0xdb2e51bfe9d0696au, 0x06997b05fcc0319eu,
-            0x88fcf317f22241e2u, 0x441fece3bdf81f03u, 0xab3c2fddeeaad25au, 0xd527e81cad7626c3u,
-            0xd60b3bd56a5586f1u, 0x8a71e223d8d3b074u, 0x85c7056562757456u, 0xf6872d5667844e49u,
-            0xa738c6bebb12d16cu, 0xb428f8ac016561dbu, 0xd106f86e69d785c7u, 0xe13336d701beba52u,
-            0x82a45b450226b39cu, 0xecc0024661173473u, 0xa34d721642b06084u, 0x27f002d7f95d0190u,
-            0xcc20ce9bd35c78a5u, 0x31ec038df7b441f4u, 0xff290242c83396ceu, 0x7e67047175a15271u,
-            0x9f79a169bd203e41u, 0x0f0062c6e984d386u, 0xc75809c42c684dd1u, 0x52c07b78a3e60868u,
-            0xf92e0c3537826145u, 0xa7709a56ccdf8a82u, 0x9bbcc7a142b17ccbu, 0x88a66076400bb691u,
-            0xc2abf989935ddbfeu, 0x6acff893d00ea435u, 0xf356f7ebf83552feu, 0x0583f6b8c4124d43u,
-            0x98165af37b2153deu, 0xc3727a337a8b704au, 0xbe1bf1b059e9a8d6u, 0x744f18c0592e4c5cu,
-            0xeda2ee1c7064130cu, 0x1162def06f79df73u, 0x9485d4d1c63e8be7u, 0x8addcb5645ac2ba8u,
-            0xb9a74a0637ce2ee1u, 0x6d953e2bd7173692u, 0xe8111c87c5c1ba99u, 0xc8fa8db6ccdd0437u,
-            0x910ab1d4db9914a0u, 0x1d9c9892400a22a2u, 0xb54d5e4a127f59c8u, 0x2503beb6d00cab4bu,
-            0xe2a0b5dc971f303au, 0x2e44ae64840fd61du, 0x8da471a9de737e24u, 0x5ceaecfed289e5d2u,
-            0xb10d8e1456105dadu, 0x7425a83e872c5f47u, 0xdd50f1996b947518u, 0xd12f124e28f77719u,
-            0x8a5296ffe33cc92fu, 0x82bd6b70d99aaa6fu, 0xace73cbfdc0bfb7bu, 0x636cc64d1001550bu,
-            0xd8210befd30efa5au, 0x3c47f7e05401aa4eu, 0x8714a775e3e95c78u, 0x65acfaec34810a71u,
-            0xa8d9d1535ce3b396u, 0x7f1839a741a14d0du, 0xd31045a8341ca07cu, 0x1ede48111209a050u,
-            0x83ea2b892091e44du, 0x934aed0aab460432u, 0xa4e4b66b68b65d60u, 0xf81da84d5617853fu,
-            0xce1de40642e3f4b9u, 0x36251260ab9d668eu, 0x80d2ae83e9ce78f3u, 0xc1d72b7c6b426019u,
-            0xa1075a24e4421730u, 0xb24cf65b8612f81fu, 0xc94930ae1d529cfcu, 0xdee033f26797b627u,
-            0xfb9b7cd9a4a7443cu, 0x169840ef017da3b1u, 0x9d412e0806e88aa5u, 0x8e1f289560ee864eu,
-            0xc491798a08a2ad4eu, 0xf1a6f2bab92a27e2u, 0xf5b5d7ec8acb58a2u, 0xae10af696774b1dbu,
-            0x9991a6f3d6bf1765u, 0xacca6da1e0a8ef29u, 0xbff610b0cc6edd3fu, 0x17fd090a58d32af3u,
-            0xeff394dcff8a948eu, 0xddfc4b4cef07f5b0u, 0x95f83d0a1fb69cd9u, 0x4abdaf101564f98eu,
-            0xbb764c4ca7a4440fu, 0x9d6d1ad41abe37f1u, 0xea53df5fd18d5513u, 0x84c86189216dc5edu,
-            0x92746b9be2f8552cu, 0x32fd3cf5b4e49bb4u, 0xb7118682dbb66a77u, 0x3fbc8c33221dc2a1u,
-            0xe4d5e82392a40515u, 0x0fabaf3feaa5334au, 0x8f05b1163ba6832du, 0x29cb4d87f2a7400eu,
-            0xb2c71d5bca9023f8u, 0x743e20e9ef511012u, 0xdf78e4b2bd342cf6u, 0x914da9246b255416u,
-            0x8bab8eefb6409c1au, 0x1ad089b6c2f7548eu, 0xae9672aba3d0c320u, 0xa184ac2473b529b1u,
-            0xda3c0f568cc4f3e8u, 0xc9e5d72d90a2741eu, 0x8865899617fb1871u, 0x7e2fa67c7a658892u,
-            0xaa7eebfb9df9de8du, 0xddbb901b98feeab7u, 0xd51ea6fa85785631u, 0x552a74227f3ea565u,
-            0x8533285c936b35deu, 0xd53a88958f87275fu, 0xa67ff273b8460356u, 0x8a892abaf368f137u,
-            0xd01fef10a657842cu, 0x2d2b7569b0432d85u, 0x8213f56a67f6b29bu, 0x9c3b29620e29fc73u,
-            0xa298f2c501f45f42u, 0x8349f3ba91b47b8fu, 0xcb3f2f7642717713u, 0x241c70a936219a73u,
-            0xfe0efb53d30dd4d7u, 0xed238cd383aa0110u, 0x9ec95d1463e8a506u, 0xf4363804324a40aau,
-            0xc67bb4597ce2ce48u, 0xb143c6053edcd0d5u, 0xf81aa16fdc1b81dau, 0xdd94b7868e94050au,
-            0x9b10a4e5e9913128u, 0xca7cf2b4191c8326u, 0xc1d4ce1f63f57d72u, 0xfd1c2f611f63a3f0u,
-            0xf24a01a73cf2dccfu, 0xbc633b39673c8cecu, 0x976e41088617ca01u, 0xd5be0503e085d813u,
-            0xbd49d14aa79dbc82u, 0x4b2d8644d8a74e18u, 0xec9c459d51852ba2u, 0xddf8e7d60ed1219eu,
-            0x93e1ab8252f33b45u, 0xcabb90e5c942b503u, 0xb8da1662e7b00a17u, 0x3d6a751f3b936243u,
-            0xe7109bfba19c0c9du, 0x0cc512670a783ad4u, 0x906a617d450187e2u, 0x27fb2b80668b24c5u,
-            0xb484f9dc9641e9dau, 0xb1f9f660802dedf6u, 0xe1a63853bbd26451u, 0x5e7873f8a0396973u,
-            0x8d07e33455637eb2u, 0xdb0b487b6423e1e8u, 0xb049dc016abc5e5fu, 0x91ce1a9a3d2cda62u,
-            0xdc5c5301c56b75f7u, 0x7641a140cc7810fbu, 0x89b9b3e11b6329bau, 0xa9e904c87fcb0a9du,
-            0xac2820d9623bf429u, 0x546345fa9fbdcd44u, 0xd732290fbacaf133u, 0xa97c177947ad4095u,
-            0x867f59a9d4bed6c0u, 0x49ed8eabcccc485du, 0xa81f301449ee8c70u, 0x5c68f256bfff5a74u,
-            0xd226fc195c6a2f8cu, 0x73832eec6fff3111u, 0x83585d8fd9c25db7u, 0xc831fd53c5ff7eabu,
-            0xa42e74f3d032f525u, 0xba3e7ca8b77f5e55u, 0xcd3a1230c43fb26fu, 0x28ce1bd2e55f35ebu,
-            0x80444b5e7aa7cf85u, 0x7980d163cf5b81b3u, 0xa0555e361951c366u, 0xd7e105bcc332621fu,
-            0xc86ab5c39fa63440u, 0x8dd9472bf3fefaa7u, 0xfa856334878fc150u, 0xb14f98f6f0feb951u,
-            0x9c935e00d4b9d8d2u, 0x6ed1bf9a569f33d3u, 0xc3b8358109e84f07u, 0x0a862f80ec4700c8u,
-            0xf4a642e14c6262c8u, 0xcd27bb612758c0fau, 0x98e7e9cccfbd7dbdu, 0x8038d51cb897789cu,
-            0xbf21e44003acdd2cu, 0xe0470a63e6bd56c3u, 0xeeea5d5004981478u, 0x1858ccfce06cac74u,
-            0x95527a5202df0ccbu, 0x0f37801e0c43ebc8u, 0xbaa718e68396cffdu, 0xd30560258f54e6bau,
-            0xe950df20247c83fdu, 0x47c6b82ef32a2069u, 0x91d28b7416cdd27eu, 0x4cdc331d57fa5441u,
-            0xb6472e511c81471du, 0xe0133fe4adf8e952u, 0xe3d8f9e563a198e5u, 0x58180fddd97723a6u,
-            0x8e679c2f5e44ff8fu, 0x570f09eaa7ea7648u,
-        }
-    };
-    return table;
-}
-
-}  // namespace detail
-NLOHMANN_JSON_NAMESPACE_END
@@ -26,7 +26,6 @@
 #include <nlohmann/detail/macro_scope.hpp>
 #include <nlohmann/detail/string_concat.hpp>
 #include <nlohmann/detail/string_escape.hpp>
-#include <nlohmann/detail/string_utils.hpp>
 #include <nlohmann/detail/value_t.hpp>

 NLOHMANN_JSON_NAMESPACE_BEGIN
@@ -117,7 +116,7 @@ class json_pointer
    /// @sa https://json.nlohmann.me/api/json_pointer/operator_slasheq/
    json_pointer& operator/=(std::size_t array_idx)
    {
-        return *this /= detail::to_string<string_t>(array_idx);
+        return *this /= std::to_string(array_idx);
    }

    /// @brief create a new JSON pointer by appending the right JSON pointer at the end of the left JSON pointer
@@ -747,13 +746,7 @@ class json_pointer
                        // "-" always fails the range check
                        return false;
                    }
-                    if (JSON_HEDLEY_UNLIKELY(reference_token.empty()))
-                    {
-                        // an empty reference token is not an array index; array_index()
-                        // would throw out_of_range.404 -- contains() must not throw (see #5395)
-                        return false;
-                    }
-                    if (JSON_HEDLEY_UNLIKELY(reference_token.size() == 1 && !('0' <= reference_token[0] && reference_token[0] <= '9')))
+                    if (JSON_HEDLEY_UNLIKELY(reference_token.size() == 1 && !("0" <= reference_token && reference_token <= "9")))
                    {
                        // invalid char
                        return false;
@@ -781,7 +774,7 @@ class json_pointer
                    // not throw (see #5395), so such a reference token is treated as "not found"
                    errno = 0; // strtoull() does not reset errno on success
                    char* p_end = nullptr; // NOLINT(misc-const-correctness)
-                    const unsigned long long magnitude = std::strtoull(reference_token.data(), &p_end, 10); // NOLINT(runtime/int)
+                    const unsigned long long magnitude = std::strtoull(reference_token.c_str(), &p_end, 10); // NOLINT(runtime/int)
                    if (JSON_HEDLEY_UNLIKELY(errno == ERANGE // the value exceeds ULLONG_MAX
                                             || magnitude >= static_cast<unsigned long long>((std::numeric_limits<typename BasicJsonType::size_type>::max)()))) // NOLINT(runtime/int)
                    {
@@ -336,7 +336,7 @@ void templated_json_throw(ExceptionType exception)
            return ej_pair.second == j;                                                         \
        });                                                                                     \
        if (it != std::end(m)) e = it->first;                                                   \
-        else templated_json_throw<nlohmann::detail::out_of_range>(nlohmann::detail::out_of_range::create(410, nlohmann::detail::concat("enum value out of range for " #ENUM_TYPE ": ", j.dump(-1, ' ', false, nlohmann::detail::error_handler_t::replace)), &j)); \
+        else templated_json_throw<nlohmann::detail::out_of_range>(nlohmann::detail::out_of_range::create(410,"enum value out of range for " #ENUM_TYPE ": " + j.dump(), &j)); \
    }

 // Ugly macros to avoid uglier copy-paste when specializing basic_json. They
@@ -359,7 +359,6 @@ void templated_json_throw(ExceptionType exception)

 // Macros to simplify conversion from/to types

-// NLOHMANN_JSON_EXPAND to NLOHMANN_JSON_DOUBLE_PASTE63 are generated by tools/macro_builder (see its README.md)
 #define NLOHMANN_JSON_EXPAND( x ) x
 #define NLOHMANN_JSON_GET_MACRO(_1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _13, _14, _15, _16, _17, _18, _19, _20, _21, _22, _23, _24, _25, _26, _27, _28, _29, _30, _31, _32, _33, _34, _35, _36, _37, _38, _39, _40, _41, _42, _43, _44, _45, _46, _47, _48, _49, _50, _51, _52, _53, _54, _55, _56, _57, _58, _59, _60, _61, _62, _63, _64, NAME,...) NAME
 #define NLOHMANN_JSON_PASTE(...) NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_GET_MACRO(__VA_ARGS__, \
@@ -622,10 +621,6 @@ void templated_json_throw(ExceptionType exception)
 // arguments, so dispatching on Type,BaseType,member... directly would run out
 // one slot early and cap the derived-type macros at 62 members instead of the
 // 63 that NLOHMANN_JSON_PASTE supports.
-//
-// The slot table below (down to the closing NLOHMANN_JSON_TYPE_BODY_SENTINEL))
-// is generated by tools/macro_builder (see its README.md; run with the
-// "type_body" argument).
 #define NLOHMANN_JSON_TYPE_BODY(Prefix, ...) NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_GET_MACRO(__VA_ARGS__, \
        Prefix ## MEMBERS, Prefix ## MEMBERS, Prefix ## MEMBERS, Prefix ## MEMBERS, Prefix ## MEMBERS, Prefix ## MEMBERS, Prefix ## MEMBERS, Prefix ## MEMBERS, \
        Prefix ## MEMBERS, Prefix ## MEMBERS, Prefix ## MEMBERS, Prefix ## MEMBERS, Prefix ## MEMBERS, Prefix ## MEMBERS, Prefix ## MEMBERS, Prefix ## MEMBERS, \
@@ -921,6 +916,6 @@ void templated_json_throw(ExceptionType exception)
    #define JSON_DISABLE_ENUM_SERIALIZATION 0
 #endif

-#ifndef JSON_DISABLE_TUPLE_REFERENCE_CONVERSION
-    #define JSON_DISABLE_TUPLE_REFERENCE_CONVERSION 0
+#ifndef JSON_USE_GLOBAL_UDLS
+    #define JSON_USE_GLOBAL_UDLS 1
 #endif
@@ -25,7 +25,7 @@
 #undef JSON_INLINE_VARIABLE
 #undef JSON_NO_UNIQUE_ADDRESS
 #undef JSON_DISABLE_ENUM_SERIALIZATION
-#undef JSON_DISABLE_TUPLE_REFERENCE_CONVERSION
+#undef JSON_USE_GLOBAL_UDLS

 #ifndef JSON_TEST_KEEP_MACROS
    #undef JSON_CATCH
@@ -9,6 +9,7 @@

 #pragma once

+#include <array> // array
 #include <cstddef> // size_t
 #include <type_traits> // conditional, enable_if, false_type, integral_constant, is_constructible, is_integral, is_same, remove_cv, remove_reference, true_type
 #include <utility> // index_sequence, make_index_sequence, index_sequence_for
@@ -160,5 +161,11 @@ struct static_const
    constexpr T static_const<T>::value;
 #endif

+template<typename T, typename... Args>
+constexpr std::array<T, sizeof...(Args)> make_array(Args&& ... args)
+{
+    return std::array<T, sizeof...(Args)> {{static_cast<T>(std::forward<Args>(args))...}};
+}
+
 }  // namespace detail
 NLOHMANN_JSON_NAMESPACE_END
@@ -636,18 +636,6 @@ template<typename BasicJsonType, typename CompatibleType>
 struct is_compatible_type
    : is_compatible_type_impl<BasicJsonType, CompatibleType> {};

-// a one-element std::tuple holding a reference to BasicJsonType, as created by
-// std::forward_as_tuple(j); see JSON_DISABLE_TUPLE_REFERENCE_CONVERSION
-template<typename BasicJsonType, typename T>
-struct is_basic_json_reference_tuple : std::false_type {};
-
-template<typename BasicJsonType, typename T>
-struct is_basic_json_reference_tuple<BasicJsonType, std::tuple<T>>
-{
-    static constexpr bool value =
-        std::is_reference<T>::value && std::is_same<uncvref_t<T>, BasicJsonType>::value;
-};
-
 template<typename BasicJsonType, typename CompatibleArrayType>
 struct is_compatible_binary_type
 {
@@ -737,7 +725,7 @@ std::is_constructible <decltype(std::declval<Compare>()(std::declval<A>(), std::
 // avoid their instantiation on all compilers, even when the first operand
 // is false. The dispatch on is_json_pointer_of can be removed once the
 // deprecated json_pointer comparison operators have been removed.
-template<typename Compare, typename A, typename B, bool = is_json_pointer_of<uncvref_t<A>, uncvref_t<B>>::value>
+template<typename Compare, typename A, typename B, bool = is_json_pointer_of<A, B>::value>
 struct is_comparable : std::false_type {};

 template<typename Compare, typename A, typename B>
@@ -19,17 +19,11 @@ namespace detail
 /*!
@brief the number of nesting levels an operation recurses into

-Operations that walk a value (copying, comparing, serializing, hashing, merging,
-...) recurse once
+Operations that walk a value (serializing, hashing, merging, ...) recurse once
 per nesting level, which is fastest, but a value nested deeply enough would
 exhaust the call stack. So they recurse only this many levels deep and finish
 whatever lies below with an explicit stack. All of them share this limit.

-Most of them pass the depth down as an argument. The copy constructor and the
-comparison operators cannot, as their signatures are fixed, so they count it
-in basic_json::nesting_depth() instead, a byte per thread; the limit must
-therefore stay below 255.
-
@sa https://github.com/nlohmann/json/issues/5387
 */
 constexpr std::size_t recursion_depth_limit() noexcept
@@ -11,7 +11,8 @@

 #include <cstdint> // int64_t, uint64_t
 #include <map> // map
-#include <string> // allocator, string
+#include <memory> // allocator
+#include <string> // string
 #include <vector> // vector

 #include <nlohmann/detail/abi_macros.hpp>
@@ -31,7 +32,7 @@ This serializer ignores the template arguments and uses ADL
 for serialization.
 */
 template<typename T = void, typename SFINAE = void>
-struct adl_serializer; // IWYU pragma: keep
+struct adl_serializer;

 /// a class to store JSON values
 /// @sa https://json.nlohmann.me/api/basic_json/
@@ -47,12 +48,12 @@ template<template<typename U, typename V, typename... Args> class ObjectType =
         adl_serializer,
         class BinaryType = std::vector<std::uint8_t>, // cppcheck-suppress syntaxError
         class CustomBaseClass = void>
-class basic_json; // IWYU pragma: keep
+class basic_json;

 /// @brief JSON Pointer defines a string syntax for identifying a specific value within a JSON document
 /// @sa https://json.nlohmann.me/api/json_pointer/
 template<typename RefStringType>
-class json_pointer; // IWYU pragma: keep
+class json_pointer;

 /*!
@brief default specialization
@@ -63,7 +64,7 @@ using json = basic_json<>;
 /// @brief a minimal map-like container that preserves insertion order
 /// @sa https://json.nlohmann.me/api/ordered_map/
 template<class Key, class T, class IgnoredLess, class Allocator>
-struct ordered_map; // IWYU pragma: keep
+struct ordered_map;

 /// @brief specialization that maintains the insertion order of object keys
 /// @sa https://json.nlohmann.me/api/ordered_json/
@@ -1,78 +0,0 @@
-//     __ _____ _____ _____
-//  __|  |   __|     |   | |  JSON for Modern C++
-// |  |  |__   |  |  | | | |  version 3.12.0
-// |_____|_____|_____|_|___|  https://github.com/nlohmann/json
-//
-// SPDX-FileCopyrightText: 2013-2026 Niels Lohmann <https://nlohmann.me>
-// SPDX-License-Identifier: MIT
-
-#ifndef INCLUDE_NLOHMANN_JSON_LITERALS_HPP_
-#define INCLUDE_NLOHMANN_JSON_LITERALS_HPP_
-
-#include <cstddef> // size_t
-#include <string> // string
-
-// NOLINTNEXTLINE(misc-header-include-cycle): json.hpp includes this header at its end
-#include <nlohmann/json.hpp>
-
-// This header is included at the end of <nlohmann/json.hpp> unless
-// JSON_NO_AUTOMATIC_UDLS is defined, and can be included on its own after that.
-// Either way, the library's internal macros are no longer defined here (and the
-// amalgamation inlines macro_scope.hpp only once), so only standard and public
-// macros may be used below.
-
-// declares the literal operator for the given suffix; GCC 4.8 requires a space
-// between "" and the suffix, which newer compilers deprecate (CWG 2521)
-#if !defined(__GNUC__) || defined(__clang__) || __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 9)
-    #define NLOHMANN_JSON_LITERAL_OPERATOR(suffix) operator""##suffix
-#else
-    #define NLOHMANN_JSON_LITERAL_OPERATOR(suffix) operator"" suffix
-#endif
-
-NLOHMANN_JSON_NAMESPACE_BEGIN
-inline namespace literals
-{
-inline namespace json_literals
-{
-
-/// @brief user-defined string literal for JSON values
-/// @sa https://json.nlohmann.me/api/operator_literal_json/
-inline nlohmann::json NLOHMANN_JSON_LITERAL_OPERATOR(_json)(const char* s, std::size_t n)
-{
-    return nlohmann::json::parse(s, s + n);
-}
-
-#if defined(__cpp_char8_t)
-inline nlohmann::json operator""_json(const char8_t* s, std::size_t n)
-{
-    return nlohmann::json::parse(reinterpret_cast<const char*>(s),
-                                 reinterpret_cast<const char*>(s) + n);
-}
-#endif
-
-/// @brief user-defined string literal for JSON pointer
-/// @sa https://json.nlohmann.me/api/operator_literal_json_pointer/
-inline nlohmann::json::json_pointer NLOHMANN_JSON_LITERAL_OPERATOR(_json_pointer)(const char* s, std::size_t n)
-{
-    return nlohmann::json::json_pointer(std::string(s, n));
-}
-
-#if defined(__cpp_char8_t)
-inline nlohmann::json::json_pointer operator""_json_pointer(const char8_t* s, std::size_t n)
-{
-    return nlohmann::json::json_pointer(std::string(reinterpret_cast<const char*>(s), n));
-}
-#endif
-
-}  // namespace json_literals
-}  // namespace literals
-NLOHMANN_JSON_NAMESPACE_END
-
-#if !defined(JSON_USE_GLOBAL_UDLS) || JSON_USE_GLOBAL_UDLS
-    using nlohmann::literals::json_literals::NLOHMANN_JSON_LITERAL_OPERATOR(_json); // NOLINT(misc-unused-using-decls,google-global-names-in-headers)
-    using nlohmann::literals::json_literals::NLOHMANN_JSON_LITERAL_OPERATOR(_json_pointer); //NOLINT(misc-unused-using-decls,google-global-names-in-headers)
-#endif
-
-#undef NLOHMANN_JSON_LITERAL_OPERATOR
-
-#endif  // INCLUDE_NLOHMANN_JSON_LITERALS_HPP_
@@ -8,18 +8,15 @@

 #pragma once

-#include <algorithm> // max, min
 #include <functional> // equal_to, less
 #include <initializer_list> // initializer_list
 #include <iterator> // input_iterator_tag, iterator_traits
-#include <new> // for operator new (placement new)
+#include <memory> // allocator
 #include <stdexcept> // for out_of_range
-#include <tuple> // forward_as_tuple
-#include <type_traits> // enable_if, integral_constant, is_convertible, is_nothrow_move_constructible
-#include <utility> // forward, move, pair, piecewise_construct
-#include <vector> // vector, allocator
+#include <type_traits> // enable_if, is_convertible
+#include <utility> // pair
+#include <vector> // vector

-#include <nlohmann/detail/abi_macros.hpp>
 #include <nlohmann/detail/macro_scope.hpp>
 #include <nlohmann/detail/meta/type_traits.hpp>

@@ -82,7 +79,7 @@ template <class Key, class T, class IgnoredLess = std::less<Key>,
                return {it, false};
            }
        }
-        append(key, std::forward<T>(t));
+        Container::emplace_back(key, std::forward<T>(t));
        return {std::prev(this->end()), true};
    }

@@ -97,7 +94,7 @@ template <class Key, class T, class IgnoredLess = std::less<Key>,
                return {it, false};
            }
        }
-        append(std::forward<KeyType>(key), std::forward<T>(t));
+        Container::emplace_back(std::forward<KeyType>(key), std::forward<T>(t));
        return {std::prev(this->end()), true};
    }

@@ -371,7 +368,7 @@ template <class Key, class T, class IgnoredLess = std::less<Key>,
                return {it, false};
            }
        }
-        append(value);
+        Container::push_back(value);
        return {--this->end(), true};
    }

@@ -389,64 +386,6 @@ template <class Key, class T, class IgnoredLess = std::less<Key>,
    }

 private:
-    /*!
-    @brief add an element whose key is not yet contained at the end
-
-    A std::vector copies all elements when it grows, because their const keys
-    make them not nothrow move constructible. For ordered_json, this is a deep
-    copy of every value. Where the strong exception guarantee can be kept, grow
-    the storage here instead, copying only the keys and moving the values.
-    */
-    template<typename... Args>
-    void append(Args&& ... args)
-    {
-        // evaluated here rather than at class scope, because T is still
-        // incomplete when basic_json instantiates its object_t
-        using move_values = std::integral_constant<bool, detail::conjunction<
-                detail::negation<std::is_nothrow_move_constructible<value_type>>,
-                std::is_copy_constructible<key_type>,
-                detail::is_default_constructible<mapped_type>,
-                std::is_nothrow_move_assignable<mapped_type>>::value>;
-        append_impl(move_values{}, std::forward<Args>(args)...);
-    }
-
-    template<typename... Args>
-    void append_impl(std::true_type /*unused*/, Args&& ... args)
-    {
-        if (this->size() < this->capacity())
-        {
-            Container::emplace_back(std::forward<Args>(args)...);
-            return;
-        }
-
-        // 1. May throw, but only changes tmp: copy the keys, value-initialize
-        //    the values, and add the new element. The arguments may refer to
-        //    elements of this container, so they are used before any value is
-        //    moved out of it.
-        Container tmp(this->get_allocator()); // equal allocators, so swap() is valid
-        tmp.reserve((std::min)(this->max_size(), (std::max)(size_type{1}, 2 * this->size())));
-        for (const auto& element : *this)
-        {
-            tmp.emplace_back(std::piecewise_construct, std::forward_as_tuple(element.first), std::forward_as_tuple());
-        }
-        tmp.emplace_back(std::forward<Args>(args)...);
-
-        // 2. Cannot throw: move the values over and adopt the new storage.
-        auto it = tmp.begin();
-        for (auto& element : *this)
-        {
-            it->second = std::move(element.second);
-            ++it;
-        }
-        Container::swap(tmp);
-    }
-
-    template<typename... Args>
-    void append_impl(std::false_type /*unused*/, Args&& ... args)
-    {
-        Container::emplace_back(std::forward<Args>(args)...);
-    }
-
    JSON_NO_UNIQUE_ADDRESS key_compare m_compare = key_compare();
 };

@@ -15,7 +15,6 @@ nlohmann_json_multiple_headers = declare_dependency(
 if not meson.is_subproject()
 install_headers('single_include/nlohmann/json.hpp', subdir: 'nlohmann')
 install_headers('single_include/nlohmann/json_fwd.hpp', subdir: 'nlohmann')
-install_headers('single_include/nlohmann/json_literals.hpp', subdir: 'nlohmann')

 pkgc = import('pkgconfig')
 pkgc.generate(name: 'nlohmann_json',
@@ -11,7 +11,8 @@

 #include <cstdint> // int64_t, uint64_t
 #include <map> // map
-#include <string> // allocator, string
+#include <memory> // allocator
+#include <string> // string
 #include <vector> // vector

 // #include <nlohmann/detail/abi_macros.hpp>
@@ -176,7 +177,7 @@ This serializer ignores the template arguments and uses ADL
 for serialization.
 */
 template<typename T = void, typename SFINAE = void>
-struct adl_serializer; // IWYU pragma: keep
+struct adl_serializer;

 /// a class to store JSON values
 /// @sa https://json.nlohmann.me/api/basic_json/
@@ -192,12 +193,12 @@ template<template<typename U, typename V, typename... Args> class ObjectType =
         adl_serializer,
         class BinaryType = std::vector<std::uint8_t>, // cppcheck-suppress syntaxError
         class CustomBaseClass = void>
-class basic_json; // IWYU pragma: keep
+class basic_json;

 /// @brief JSON Pointer defines a string syntax for identifying a specific value within a JSON document
 /// @sa https://json.nlohmann.me/api/json_pointer/
 template<typename RefStringType>
-class json_pointer; // IWYU pragma: keep
+class json_pointer;

 /*!
@brief default specialization
@@ -208,7 +209,7 @@ using json = basic_json<>;
 /// @brief a minimal map-like container that preserves insertion order
 /// @sa https://json.nlohmann.me/api/ordered_map/
 template<class Key, class T, class IgnoredLess, class Allocator>
-struct ordered_map; // IWYU pragma: keep
+struct ordered_map;

 /// @brief specialization that maintains the insertion order of object keys
 /// @sa https://json.nlohmann.me/api/ordered_json/
@@ -1,78 +0,0 @@
-//     __ _____ _____ _____
-//  __|  |   __|     |   | |  JSON for Modern C++
-// |  |  |__   |  |  | | | |  version 3.12.0
-// |_____|_____|_____|_|___|  https://github.com/nlohmann/json
-//
-// SPDX-FileCopyrightText: 2013-2026 Niels Lohmann <https://nlohmann.me>
-// SPDX-License-Identifier: MIT
-
-#ifndef INCLUDE_NLOHMANN_JSON_LITERALS_HPP_
-#define INCLUDE_NLOHMANN_JSON_LITERALS_HPP_
-
-#include <cstddef> // size_t
-#include <string> // string
-
-// NOLINTNEXTLINE(misc-header-include-cycle): json.hpp includes this header at its end
-#include <nlohmann/json.hpp>
-
-// This header is included at the end of <nlohmann/json.hpp> unless
-// JSON_NO_AUTOMATIC_UDLS is defined, and can be included on its own after that.
-// Either way, the library's internal macros are no longer defined here (and the
-// amalgamation inlines macro_scope.hpp only once), so only standard and public
-// macros may be used below.
-
-// declares the literal operator for the given suffix; GCC 4.8 requires a space
-// between "" and the suffix, which newer compilers deprecate (CWG 2521)
-#if !defined(__GNUC__) || defined(__clang__) || __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 9)
-    #define NLOHMANN_JSON_LITERAL_OPERATOR(suffix) operator""##suffix
-#else
-    #define NLOHMANN_JSON_LITERAL_OPERATOR(suffix) operator"" suffix
-#endif
-
-NLOHMANN_JSON_NAMESPACE_BEGIN
-inline namespace literals
-{
-inline namespace json_literals
-{
-
-/// @brief user-defined string literal for JSON values
-/// @sa https://json.nlohmann.me/api/operator_literal_json/
-inline nlohmann::json NLOHMANN_JSON_LITERAL_OPERATOR(_json)(const char* s, std::size_t n)
-{
-    return nlohmann::json::parse(s, s + n);
-}
-
-#if defined(__cpp_char8_t)
-inline nlohmann::json operator""_json(const char8_t* s, std::size_t n)
-{
-    return nlohmann::json::parse(reinterpret_cast<const char*>(s),
-                                 reinterpret_cast<const char*>(s) + n);
-}
-#endif
-
-/// @brief user-defined string literal for JSON pointer
-/// @sa https://json.nlohmann.me/api/operator_literal_json_pointer/
-inline nlohmann::json::json_pointer NLOHMANN_JSON_LITERAL_OPERATOR(_json_pointer)(const char* s, std::size_t n)
-{
-    return nlohmann::json::json_pointer(std::string(s, n));
-}
-
-#if defined(__cpp_char8_t)
-inline nlohmann::json::json_pointer operator""_json_pointer(const char8_t* s, std::size_t n)
-{
-    return nlohmann::json::json_pointer(std::string(reinterpret_cast<const char*>(s), n));
-}
-#endif
-
-}  // namespace json_literals
-}  // namespace literals
-NLOHMANN_JSON_NAMESPACE_END
-
-#if !defined(JSON_USE_GLOBAL_UDLS) || JSON_USE_GLOBAL_UDLS
-    using nlohmann::literals::json_literals::NLOHMANN_JSON_LITERAL_OPERATOR(_json); // NOLINT(misc-unused-using-decls,google-global-names-in-headers)
-    using nlohmann::literals::json_literals::NLOHMANN_JSON_LITERAL_OPERATOR(_json_pointer); //NOLINT(misc-unused-using-decls,google-global-names-in-headers)
-#endif
-
-#undef NLOHMANN_JSON_LITERAL_OPERATOR
-
-#endif  // INCLUDE_NLOHMANN_JSON_LITERALS_HPP_
@@ -18,7 +18,6 @@ module;
 // See: https://github.com/nlohmann/json/issues/5103

 #include <nlohmann/json.hpp>
-#include <nlohmann/json_literals.hpp>

 export module nlohmann.json;

@@ -119,39 +119,6 @@ BENCHMARK_CAPTURE(ParseIndented, canada / 4,       TEST_DATA_DIRECTORY "/nativej
 BENCHMARK_CAPTURE(ParseIndented, citm_catalog / 4, TEST_DATA_DIRECTORY "/nativejson-benchmark/citm_catalog.json", 4);
 BENCHMARK_CAPTURE(ParseIndented, twitter / 4,      TEST_DATA_DIRECTORY "/nativejson-benchmark/twitter.json",      4);

-//////////////////////////////////////////////////////////////////////////////
-// parse JSON from string into an ordered_json
-//
-// Same as ParseString above, but with nlohmann::ordered_json, whose objects
-// keep their members in a vector: the pair of rows shows what preserving the
-// insertion order costs.
-//////////////////////////////////////////////////////////////////////////////
-
-static void ParseStringOrdered(benchmark::State& state, const char* filename)
-{
-    std::ifstream f(filename);
-    std::string str((std::istreambuf_iterator<char>(f)), std::istreambuf_iterator<char>());
-
-    while (state.KeepRunning())
-    {
-        state.PauseTiming();
-        auto* j = new nlohmann::ordered_json();
-        state.ResumeTiming();
-
-        *j = nlohmann::ordered_json::parse(str);
-
-        state.PauseTiming();
-        delete j;
-        state.ResumeTiming();
-    }
-
-    state.SetBytesProcessed(state.iterations() * str.size());
-}
-BENCHMARK_CAPTURE(ParseStringOrdered, jeopardy,     TEST_DATA_DIRECTORY "/jeopardy/jeopardy.json");
-BENCHMARK_CAPTURE(ParseStringOrdered, canada,       TEST_DATA_DIRECTORY "/nativejson-benchmark/canada.json");
-BENCHMARK_CAPTURE(ParseStringOrdered, citm_catalog, TEST_DATA_DIRECTORY "/nativejson-benchmark/citm_catalog.json");
-BENCHMARK_CAPTURE(ParseStringOrdered, twitter,      TEST_DATA_DIRECTORY "/nativejson-benchmark/twitter.json");
-
 //////////////////////////////////////////////////////////////////////////////
 // serialize JSON
 //////////////////////////////////////////////////////////////////////////////
@@ -276,133 +276,6 @@ TEST_CASE("controlled bad_alloc")
    }
 }

-namespace
-{
-// counts every allocation made on behalf of a basic_json value (of its own
-// object_t/array_t/string_t/binary_t or of its own type), and can be told to
-// fail one of them: the n-th call to allocate() throws std::bad_alloc instead
-// of allocating, whichever type it is allocating for
-std::size_t alloc_call_count = 0;
-long fail_at_alloc_call = -1; // -1: never fail
-
-template<class T>
-struct nth_alloc_fails_allocator : std::allocator<T>
-{
-    using std::allocator<T>::allocator;
-
-    T* allocate(std::size_t n)
-    {
-        const auto index = alloc_call_count++;
-        if (fail_at_alloc_call >= 0 && index == static_cast<std::size_t>(fail_at_alloc_call))
-        {
-            throw std::bad_alloc();
-        }
-        return std::allocator<T>::allocate(n);
-    }
-
-    template <class U>
-    struct rebind
-    {
-        using other = nth_alloc_fails_allocator<U>;
-    };
-};
-
-// builds a value nested more than 128 levels deep - the bound the copy
-// constructor descends into before it continues without the call stack - and
-// checks that a copy survives any single allocation of it failing: every
-// attempt either throws std::bad_alloc, without crashing or leaving the
-// source altered, or completes the copy
-template<class BasicJsonType>
-void check_deep_copy_survives_failing_allocation(bool nest_objects)
-{
-    CAPTURE(nest_objects);
-
-    fail_at_alloc_call = -1;
-
-    // [[[ ... [1] ... ]]], or the same nesting with objects, 130 levels deep
-    BasicJsonType src = 1;
-    for (std::size_t i = 0; i < 130; ++i)
-    {
-        if (nest_objects)
-        {
-            BasicJsonType wrapper = BasicJsonType::object();
-            wrapper["a"] = std::move(src);
-            src = std::move(wrapper);
-        }
-        else
-        {
-            src = BasicJsonType::array({std::move(src)});
-        }
-    }
-
-    const std::string original_dump = src.dump();
-
-    // first measure how many allocations an unhindered copy takes
-    alloc_call_count = 0;
-    {
-        // NOLINTNEXTLINE(performance-unnecessary-copy-initialization): the copy is what is measured
-        const BasicJsonType measure(src);
-    }
-    const std::size_t total_allocations = alloc_call_count;
-    REQUIRE(total_allocations > 0);
-    REQUIRE(src.dump() == original_dump);
-
-    // let the 0th, 1st, 2nd, ... allocation of the copy fail in turn; every
-    // such copy must throw std::bad_alloc rather than crash, and the source
-    // must come out exactly as it went in
-    for (std::size_t n = 0; n < total_allocations; ++n)
-    {
-        CAPTURE(n);
-        alloc_call_count = 0;
-        fail_at_alloc_call = static_cast<long>(n);
-
-        CHECK_THROWS_AS(BasicJsonType(src), std::bad_alloc&);
-
-        fail_at_alloc_call = -1;
-        CHECK(src.dump() == original_dump);
-    }
-
-    // once no allocation is made to fail, the copy itself must succeed
-    fail_at_alloc_call = -1;
-    const BasicJsonType copy(src);
-    CHECK(copy.dump() == original_dump);
-    CHECK(src.dump() == original_dump);
-}
-} // namespace
-
-TEST_CASE("copy of a deeply nested value survives a failing allocation (#5640)")
-{
-    SECTION("std::map-backed object_t")
-    {
-        using bad_alloc_json = nlohmann::basic_json<std::map,
-              std::vector,
-              std::string,
-              bool,
-              std::int64_t,
-              std::uint64_t,
-              double,
-              nth_alloc_fails_allocator>;
-
-        check_deep_copy_survives_failing_allocation<bad_alloc_json>(false);
-        check_deep_copy_survives_failing_allocation<bad_alloc_json>(true);
-    }
-
-    SECTION("ordered_map-backed object_t")
-    {
-        using bad_alloc_ordered_json = nlohmann::basic_json<nlohmann::ordered_map,
-              std::vector,
-              std::string,
-              bool,
-              std::int64_t,
-              std::uint64_t,
-              double,
-              nth_alloc_fails_allocator>;
-
-        check_deep_copy_survives_failing_allocation<bad_alloc_ordered_json>(false);
-        check_deep_copy_survives_failing_allocation<bad_alloc_ordered_json>(true);
-    }
-}
-
 namespace
 {
 // counts the allocations of pairs with a non-const first member: the object
@@ -479,77 +352,6 @@ TEST_CASE("deep copy uses the provided allocator")
    CHECK(copy == j);
 }

-namespace
-{
-// the number of constructions countdown_allocator lets happen, including the
-// one that fails; 0 means none ever fails
-std::size_t constructions_until_failure = 0;
-
-template<class T>
-struct countdown_allocator : std::allocator<T>
-{
-    using std::allocator<T>::allocator;
-
-    template<class U, class... Args>
-    void construct(U* p, Args&& ... args)
-    {
-        if (constructions_until_failure != 0 && --constructions_until_failure == 0)
-        {
-            throw std::bad_alloc();
-        }
-
-        ::new (static_cast<void*>(p)) U(std::forward<Args>(args)...);
-    }
-
-    template <class U>
-    struct rebind
-    {
-        using other = countdown_allocator<U>;
-    };
-};
-} // namespace
-
-TEST_CASE("converting a deeply nested value from another specialization fails cleanly (#5650)")
-{
-    using countdown_json = nlohmann::basic_json<std::map,
-          std::vector,
-          std::string,
-          bool,
-          std::int64_t,
-          std::uint64_t,
-          double,
-          countdown_allocator>;
-
-    // deeper than the 128 levels the converting constructor descends into, so
-    // that failures land on both sides of the bound - or, built with
-    // JSON_NO_THREAD_LOCAL, all in the iterative conversion
-    json j = {1, "two", {{"three", 3}}};
-    for (std::size_t i = 0; i < 150; ++i)
-    {
-        j = json{{"a", json::array({j, "sibling"})}};
-    }
-
-    // Fail every construction in turn. Each failure has to reach the caller,
-    // and everything built until then has to be destroyed cleanly.
-    std::size_t failures = 0;
-    for (std::size_t n = 1;; ++n)
-    {
-        constructions_until_failure = n;
-        try
-        {
-            const countdown_json converted = j;
-            constructions_until_failure = 0;
-            CHECK(converted.dump() == j.dump());
-            break;
-        }
-        catch (const std::bad_alloc&)
-        {
-            ++failures;
-        }
-    }
-    CHECK(failures > 0);
-}
-
 namespace
 {
 template<class T>
@@ -174,15 +174,6 @@ bool operator<(const char* op1, const alt_string& op2) noexcept
    return op1 < op2.str_impl;
 }

-enum class alt_color { red, green };
-
-// NOLINTNEXTLINE(misc-use-internal-linkage,misc-const-correctness,cppcoreguidelines-avoid-c-arrays,hicpp-avoid-c-arrays,modernize-avoid-c-arrays) - false positive
-NLOHMANN_JSON_SERIALIZE_ENUM_STRICT(alt_color,
-{
-    {alt_color::red, "red"},
-    {alt_color::green, "green"},
-})
-
 TEST_CASE("alternative string type")
 {
    SECTION("binary formats")
@@ -352,41 +343,6 @@ TEST_CASE("alternative string type")
        CHECK(j2.flatten().unflatten() == j2);
    }

-    SECTION("contains(json_pointer)")
-    {
-        // contains(json_pointer) must compile and work with a string_t that has
-        // no c_str() and no comparison with const char* (see #5666)
-        auto j = alt_json::parse(R"({"foo": ["bar", "baz"]})");
-
-        // present: object key and array indices
-        CHECK(j.contains(alt_json::json_pointer("/foo")));
-        CHECK(j.contains(alt_json::json_pointer("/foo/0")));
-        CHECK(j.contains(alt_json::json_pointer("/foo/1")));
-
-        // missing: absent object key and out-of-range array index
-        CHECK_FALSE(j.contains(alt_json::json_pointer("/bar")));
-        CHECK_FALSE(j.contains(alt_json::json_pointer("/foo/2")));
-
-        // "-" always fails the range check
-        CHECK_FALSE(j.contains(alt_json::json_pointer("/foo/-")));
-
-        // an array index must not have a leading zero
-        CHECK_FALSE(j.contains(alt_json::json_pointer("/foo/01")));
-
-        // a reference token that is not a number
-        CHECK_FALSE(j.contains(alt_json::json_pointer("/foo/bar")));
-    }
-
-    SECTION("operator/(std::size_t)")
-    {
-        // json_pointer::operator/=(std::size_t) must compile without string_t
-        // being constructible from std::string (see #5666)
-        auto j = alt_json::parse(R"({"foo": ["bar", "baz"]})");
-
-        CHECK(j.at(alt_json::json_pointer("/foo") / std::size_t(0)) == j["foo"][0]);
-        CHECK(j.at(alt_json::json_pointer("/foo") / std::size_t(1)) == j["foo"][1]);
-    }
-
    SECTION("patch")
    {
        alt_json const patch1 = alt_json::parse(R"([{ "op": "add", "path": "/a/b", "value": [ "foo", "bar" ] }])");
@@ -418,19 +374,4 @@ TEST_CASE("alternative string type")
        const auto j2 = j.flatten();
        CHECK(j2.dump() == R"({"/foo/0":"bar","/foo/1":"baz"})");
    }
-
-    SECTION("strict enum")
-    {
-        // regression test for #5667: NLOHMANN_JSON_SERIALIZE_ENUM_STRICT's from_json
-        // built its exception message with "..." + j.dump(), which does not compile
-        // when j.dump() returns a custom string_t (here alt_string) instead of
-        // std::string
-        alt_json doc;
-        doc = "red";
-        CHECK(doc.get<alt_color>() == alt_color::red);
-
-        alt_json _;
-        doc = "blue";
-        CHECK_THROWS_WITH_AS(_ = doc.get<alt_color>(), "[json.exception.out_of_range.410] enum value out of range for alt_color: \"blue\"", alt_json::out_of_range&);
-    }
 }
@@ -210,42 +210,15 @@ TEST_CASE_TEMPLATE_INVOKE(value_in_range_of_test, \

 TEST_CASE("BJData")
 {
-    SECTION("binary_reader BJData lookup tables")
+    SECTION("binary_reader BJData LUT arrays are sorted")
    {
        std::vector<std::uint8_t> const data;
        auto ia = nlohmann::detail::input_adapter(data);
        // NOLINTNEXTLINE(hicpp-move-const-arg,performance-move-const-arg)
        nlohmann::detail::binary_reader<json, decltype(ia)> const br{std::move(ia), json::input_format_t::bjdata};

-        // the excluded optimized-type markers must match binary_writer's
-        // is_bjdata_excluded_type_marker(), which encodes the same 8 markers
-        for (const char marker :
-                {'[', '{', 'S', 'H', 'T', 'F', 'N', 'Z'
-                })
-        {
-            CHECK(br.is_bjd_excluded_optimized_type(marker));
-        }
-        for (const char marker :
-                {'U', 'i', 'u', 'I', 'm', 'l', 'M', 'L', 'd', 'D', 'C', 'B', 'x'
-                })
-        {
-            CHECK(!br.is_bjd_excluded_optimized_type(marker));
-        }
-
-        // every dtype marker must round-trip to its ND-array type name
-        const std::vector<std::pair<char, std::string>> types
-        {
-            {'B', "byte"}, {'C', "char"}, {'D', "double"}, {'I', "int16"},
-            {'L', "int64"}, {'M', "uint64"}, {'U', "uint8"}, {'d', "single"},
-            {'i', "int8"}, {'l', "int32"}, {'m', "uint32"}, {'u', "uint16"}
-        };
-        for (const auto& type : types)
-        {
-            const char* name = br.bjd_type_name(type.first);
-            REQUIRE(name != nullptr);
-            CHECK(std::string(name) == type.second);
-        }
-        CHECK(br.bjd_type_name('x') == nullptr);
+        CHECK(std::is_sorted(br.bjd_optimized_type_markers.begin(), br.bjd_optimized_type_markers.end()));
+        CHECK(std::is_sorted(br.bjd_types_map.begin(), br.bjd_types_map.end()));
    }

    SECTION("individual values")
@@ -797,11 +797,7 @@ TEST_CASE("regression test - BSON binary subtype rejects a value that doesn't fi
    CHECK(json::from_bson(json::to_bson(doc255))["b"].get_binary().subtype() == 255);

    CHECK_THROWS_AS(json::to_bson(json{{"b", json::binary({1, 2}, 256)}}), json::out_of_range);
-#if JSON_DIAGNOSTICS
-    CHECK_THROWS_WITH_AS(json::to_bson(json {{"b", json::binary({1, 2}, 300)}}), "[json.exception.out_of_range.415] (/b) subtype 300 is too large for the BSON binary subtype (max 255)", json::out_of_range);
-#else
-    CHECK_THROWS_WITH_AS(json::to_bson(json {{"b", json::binary({1, 2}, 300)}}), "[json.exception.out_of_range.415] subtype 300 is too large for the BSON binary subtype (max 255)", json::out_of_range);
-#endif
+    CHECK_THROWS_WITH_AS(json::to_bson(json{{"b", json::binary({1, 2}, 300)}}), "[json.exception.out_of_range.415] subtype 300 is too large for the BSON binary subtype (max 255)", json::out_of_range);
 }

 TEST_CASE("BSON input/output_adapters")
@@ -1809,21 +1805,6 @@ value = depth % 2 == 0 ? json{{"a", std::move(value)}, {"b", {1, "x"}}} :
        CHECK(output.empty());
    }

-    SECTION("a binary subtype that doesn't fit a byte is rejected before anything is written (#5675)")
-    {
-        // the offending value is nested, so this also covers that the check
-        // is not limited to a directly written value's own document
-        json const j = {{"a", {{"b", json::binary({1, 2}, 300)}}}};
-
-        std::vector<std::uint8_t> vector_output;
-        CHECK_THROWS_AS(json::to_bson(j, vector_output), json::out_of_range&);
-        CHECK(vector_output.empty());
-
-        std::string string_output;
-        CHECK_THROWS_AS(json::to_bson(j, string_output), json::out_of_range&);
-        CHECK(string_output.empty());
-    }
-
    SECTION("values nested too deeply for the call stack (#5392)")
    {
        // serializing recursed once per nesting level, and computed every
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Niels Lohmann	ffc3691598	Migrate REUSE metadata from deprecated .reuse/dep5 to REUSE.toml reuse==6.2.0 (pinned in cmake/requirements/requirements-reuse.txt) warns "'.reuse/dep5' is deprecated. You are recommended to instead use REUSE.toml. Use `reuse convert-dep5` to convert." on every ci_reuse_compliance run. A later reuse release that drops DEP5 support would break that CI job outright. Generate REUSE.toml from the 9 Files: stanzas with `reuse convert-dep5` and remove .reuse/dep5. `reuse lint` still reports full compliance with spec 3.3 (1268/1268 files with copyright and license information, unchanged), and `reuse spdx` produces the same per-file copyright and license entries as before the conversion. Update the three places that referenced the old file: FILES.md now documents REUSE.toml with a spec 3.3 link, README.md's REUSE section names REUSE.toml, and the comment in gen_hedley_undef_check.cmake now refers to REUSE.toml's blanket path = "**" rule. Overlaps #4663, which adds an entry to .reuse/dep5; that PR will need to move its entry into REUSE.toml when rebased on this. #5716 item 4 Signed-off-by: Niels Lohmann <mail@nlohmann.me>	2026-09-30 18:13:51 +02:00
Niels Lohmann	ec38da53eb	Document SwiftPM's #include <json.hpp> form and add CI coverage Package.swift declares the json target with path: "single_include/nlohmann", so SwiftPM consumers must write #include <json.hpp>; the <nlohmann/json.hpp> form used throughout the rest of this documentation does not resolve. The SwiftPM section of package_managers.md only had the summary box and did not mention this, nor the #4650 linker problem: because the json target ships only headers, SwiftPM/Xcode look for a json.o that is never built, so a consumer needs at least one .cpp file of its own. Add a usage example (docs/mkdocs/docs/integration/swift/) that depends on the json product, includes <json.hpp>, and works around the linker problem with its own example.cpp; verified it builds with `swift build` against a local checkout. Also raise the deployment target from the deprecated .watchOS(.v4) to .watchOS(.v9): Swift 6.4 warns "'v4' is deprecated: watchOS 9.0 is the oldest supported version" on every `swift package` invocation, and `swift package dump-package` is now clean. This is the one behavior change in this commit: it raises the minimum watchOS version the package declares. Add a macOS CI job that runs `swift package dump-package` (so a future deprecation warning fails CI) and builds the new documentation example against the checked-out repository with `swift build`, so a change to Package.swift or the example is caught before release. No workflow previously referenced Swift or Package.swift. Adding an in-repository placeholder .cpp to the library itself, so the issue does not occur for consumers at all, was proposed and declined in #4650; the documented workaround is a consumer-side .cpp file instead. #5716 item 3 Signed-off-by: Niels Lohmann <mail@nlohmann.me>	2026-09-30 18:10:49 +02:00
Niels Lohmann	30d5107b8d	Add json_fwd.hpp to the Bazel singleheader-json target The generator for BUILD.bazel only listed single_include/nlohmann/json.hpp in the singleheader-json cc_library's hdrs. Bazel's sandboxing only exposes declared headers, so a consumer of :singleheader-json that includes <nlohmann/json_fwd.hpp> failed with "file not found" (verified with Bazel 9.2.0). Meson and include.zip already ship json_fwd.hpp; the Bazel target was missing it. Add single_include/nlohmann/json_fwd.hpp to the hdrs list and regenerate BUILD.bazel. Verified that `bazel build //:json //:singleheader-json` succeeds and that a consumer cc_binary depending on :singleheader-json can now include <nlohmann/json_fwd.hpp>. Overlaps #5621, which adds json_view.hpp to the same hdrs list in gen_bazel_build_file.cmake; that PR will need a rebase. #5716 item 2 Signed-off-by: Niels Lohmann <mail@nlohmann.me>	2026-09-30 17:59:47 +02:00
Niels Lohmann	bdaa8381d7	Update the supported compiler list and the CITATION.cff repository link The README's compiler list still named GCC 14.2, Clang 21.0, Apple Clang 16.0, Intel C++ 17.0.2, nvcc 11.0.221, and MSVC up to 2022, which no longer matches the CI matrix. List what the workflows test now, with versions taken from the compiler identification in the CI logs of the latest develop runs: GCC 4.8 - 16.2, Clang 3.4 - 22.1, Apple Clang 15.0 - 21.0 (Xcode 15.0.1 up to macos-latest), icpc 2021.10, icpx 2025.3, nvcc 11.8 - 12.6, nvc++ 25.5, and MSVC 2015 - 2026. Apple Clang now starts at 15.0 because CI no longer runs older Xcode versions; icpc 2021.10 is the last release of that compiler. CITATION.cff pointed repository-code at the user profile instead of the repository. Documentation and metadata only; the library is unchanged. Part of #5716 Signed-off-by: Niels Lohmann <mail@nlohmann.me>	2026-09-30 09:44:53 +02:00
Niels Lohmann	85fec73da7	Make the json.tar.xz release archive configure standalone The json.tar.xz rule packed neither src/modules nor tests, but the top-level CMakeLists.txt needs src/modules for NLOHMANN_JSON_BUILD_MODULES=ON and defaulted JSON_BuildTests to ON for a main project. A standalone configure of the extracted archive failed at add_subdirectory(tests), and enabling the module failed at add_subdirectory(src/modules). Add src/modules to the archive, and default JSON_BuildTests to ON only if tests/CMakeLists.txt exists, so a repository checkout still builds the tests by default while the archive configures out of the box. Use GNU tar via a TAR variable (gtar if present, else tar), the same way SED is found, instead of hard-coding gtar. The library, its public API, and its ABI are unchanged. Part of #5716 Signed-off-by: Niels Lohmann <mail@nlohmann.me>	2026-09-30 09:40:26 +02:00
				`@@ -0,0 +1 @@`
				`<a target="_blank" href="https://wandbox.org/permlink/hUJYo1HWmfTBLMGn"><b>online</b></a>`