Write integers of 17 to 20 digits eight digits at a time in dump()

#5634 made dump() write integers below 10^16 eight digits at a time; larger ones still took the two-digits-per-division loop and count_digits(). Random 64-bit integers almost all have 17 to 20 digits (99.9 % of signed_ints.json and unsigned_ints.json), so Dump/signed_ints and Dump/unsigned_ints gained only 1.4x over 3.12.0, against 2.3x for small integers. A 64-bit magnitude is now written as its first one to four digits and two groups of eight. Wider magnitudes (__int128 and class types, #5805) keep the loop: number types of at most 64 bits are selected by type, so no comparison is reported as always true; for others the value is compared. The sign handling of #1447/#5815 (remove_sign() into number_magnitude_t) is unchanged. Signed-off-by: Niels Lohmann <mail@nlohmann.me>
2026-10-31 01:45:43 +00:00 · 2026-10-30 15:08:15 +01:00
48 changed files with 1180 additions and 4596 deletions
@@ -154,15 +154,6 @@ and each page's title (H1) and declaration by
 [`docs/docset/generate_docset.py`](https://github.com/nlohmann/json/blob/develop/docs/docset/generate_docset.py);
 `make build` reports API pages that cannot be classified.

-A pull request that changes only the documentation, Markdown files, GitHub metadata, or license files skips the
-compiler workflows (Ubuntu, macOS, Windows); the documentation and license checks still run. See
-[`tools/check_path_filters`](https://github.com/nlohmann/json/tree/develop/tools/check_path_filters) for the list of
-skipped files and what to do when a compiler job starts reading one of them.
-
-Most compiler jobs run only once a maintainer adds the label "🚀 ready to merge" to a pull request; until then, a
-smaller set of jobs runs on every push. See
-[How CI runs](https://json.nlohmann.me/community/quality_assurance/#how-ci-runs) for the sets and when they run.
-
 ### Amalgamate the source code

 The single-header files
@@ -28,7 +28,7 @@ jobs:

    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@dc2769abcc0fcfbadfc1df54081c1608579ef6b2 # v2.22.2
+        uses: step-security/harden-runner@ccd8616d44fd3846e67624a50d5aad6d37bf2d25 # v2.22.1
        with:
          egress-policy: audit

@@ -22,7 +22,7 @@ jobs:
    runs-on: ubuntu-latest
    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@dc2769abcc0fcfbadfc1df54081c1608579ef6b2 # v2.22.2
+        uses: step-security/harden-runner@ccd8616d44fd3846e67624a50d5aad6d37bf2d25 # v2.22.1
        with:
          egress-policy: audit

@@ -46,7 +46,7 @@ jobs:

    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@dc2769abcc0fcfbadfc1df54081c1608579ef6b2 # v2.22.2
+        uses: step-security/harden-runner@ccd8616d44fd3846e67624a50d5aad6d37bf2d25 # v2.22.1
        with:
          egress-policy: audit

@@ -20,7 +20,7 @@ jobs:
    timeout-minutes: 30
    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@dc2769abcc0fcfbadfc1df54081c1608579ef6b2 # v2.22.2
+        uses: step-security/harden-runner@ccd8616d44fd3846e67624a50d5aad6d37bf2d25 # v2.22.1
        with:
          egress-policy: audit

@@ -13,7 +13,7 @@ jobs:
    runs-on: ubuntu-22.04
    steps:
    - name: Harden Runner
-      uses: step-security/harden-runner@dc2769abcc0fcfbadfc1df54081c1608579ef6b2 # v2.22.2
+      uses: step-security/harden-runner@ccd8616d44fd3846e67624a50d5aad6d37bf2d25 # v2.22.1
      with:
        egress-policy: audit

@@ -27,7 +27,7 @@ jobs:

    steps:
    - name: Harden Runner
-      uses: step-security/harden-runner@dc2769abcc0fcfbadfc1df54081c1608579ef6b2 # v2.22.2
+      uses: step-security/harden-runner@ccd8616d44fd3846e67624a50d5aad6d37bf2d25 # v2.22.1
      with:
        egress-policy: audit

@@ -38,14 +38,14 @@ jobs:

    # Initializes the CodeQL tools for scanning.
    - name: Initialize CodeQL
-      uses: github/codeql-action/init@9b3254085494b55a0f7c4c2b3d2d52cc712ce370 # v4.39.1
+      uses: github/codeql-action/init@6f2ac81f5cd81fe351a197ba0b00d91d03cd2aee # v4.39.0
      with:
        languages: c-cpp

    # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
    # If this step fails, then you should remove it and run the build manually (see below)
    - name: Autobuild
-      uses: github/codeql-action/autobuild@9b3254085494b55a0f7c4c2b3d2d52cc712ce370 # v4.39.1
+      uses: github/codeql-action/autobuild@6f2ac81f5cd81fe351a197ba0b00d91d03cd2aee # v4.39.0

    - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@9b3254085494b55a0f7c4c2b3d2d52cc712ce370 # v4.39.1
+      uses: github/codeql-action/analyze@6f2ac81f5cd81fe351a197ba0b00d91d03cd2aee # v4.39.0
@@ -20,7 +20,7 @@ jobs:
      pull-requests: write
    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@dc2769abcc0fcfbadfc1df54081c1608579ef6b2 # v2.22.2
+        uses: step-security/harden-runner@ccd8616d44fd3846e67624a50d5aad6d37bf2d25 # v2.22.1
        with:
          egress-policy: audit

@@ -21,7 +21,7 @@ jobs:
    runs-on: ubuntu-latest
    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@dc2769abcc0fcfbadfc1df54081c1608579ef6b2 # v2.22.2
+        uses: step-security/harden-runner@ccd8616d44fd3846e67624a50d5aad6d37bf2d25 # v2.22.1
        with:
          egress-policy: audit

@@ -31,7 +31,7 @@ jobs:
      security-events: write
    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@dc2769abcc0fcfbadfc1df54081c1608579ef6b2 # v2.22.2
+        uses: step-security/harden-runner@ccd8616d44fd3846e67624a50d5aad6d37bf2d25 # v2.22.1
        with:
          egress-policy: audit

@@ -48,6 +48,6 @@ jobs:
          output: 'flawfinder_results.sarif'

      - name: Upload analysis results to GitHub Security tab
-        uses: github/codeql-action/upload-sarif@9b3254085494b55a0f7c4c2b3d2d52cc712ce370 # v4.39.1
+        uses: github/codeql-action/upload-sarif@6f2ac81f5cd81fe351a197ba0b00d91d03cd2aee # v4.39.0
        with:
          sarif_file: ${{github.workspace}}/flawfinder_results.sarif
@@ -54,7 +54,7 @@ jobs:
    timeout-minutes: 60
    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@dc2769abcc0fcfbadfc1df54081c1608579ef6b2 # v2.22.2
+        uses: step-security/harden-runner@ccd8616d44fd3846e67624a50d5aad6d37bf2d25 # v2.22.1
        with:
          egress-policy: audit

@@ -23,7 +23,7 @@ jobs:

    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@dc2769abcc0fcfbadfc1df54081c1608579ef6b2 # v2.22.2
+        uses: step-security/harden-runner@ccd8616d44fd3846e67624a50d5aad6d37bf2d25 # v2.22.1
        with:
          egress-policy: audit

@@ -7,25 +7,6 @@ on:
      - master
      - release/*
  pull_request:
-    # Skip pull requests that change only files no job here reads. The list is checked by
-    # tools/check_path_filters/check_path_filters.py (repository_checks.yml); change both together.
-    paths:
-      - '**'
-      - '!docs/**'
-      - '!**.md'
-      - '!.github/*'
-      - '!.github/ISSUE_TEMPLATE/**'
-      - '!.github/external_ci/**'
-      - '!.github/workflows/**'
-      - '!.reuse/**'
-      - '!LICENSES/**'
-      - '!CITATION.cff'
-      - '!REUSE.toml'
-      # read by tools/check_build_options in the ci_meson_install job (ubuntu.yml)
-      - 'docs/mkdocs/docs/integration/package_managers.md'
-      # built by the swiftpm job (macos.yml)
-      - 'docs/mkdocs/docs/integration/swift/**'
-      - '.github/workflows/macos.yml'
  workflow_dispatch:

 concurrency:
@@ -37,7 +37,7 @@ jobs:
    runs-on: ubuntu-latest
    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@dc2769abcc0fcfbadfc1df54081c1608579ef6b2 # v2.22.2
+        uses: step-security/harden-runner@ccd8616d44fd3846e67624a50d5aad6d37bf2d25 # v2.22.1
        with:
          egress-policy: audit

@@ -1,83 +0,0 @@
-name: Repository checks
-
-# Checks that concern files the compiler workflows (ubuntu.yml, macos.yml,
-# windows.yml) skip with their path filter: the documentation, the license
-# information, and the CI configuration itself. This workflow has no path filter.
-on:
-  push:
-    branches:
-      - develop
-      - master
-      - release/*
-  pull_request:
-  workflow_dispatch:
-
-permissions:
-  contents: read
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref || github.run_id }}
-  cancel-in-progress: true
-
-jobs:
-  check_ci_configuration:
-    runs-on: ubuntu-26.04
-    steps:
-      - name: Harden Runner
-        uses: step-security/harden-runner@dc2769abcc0fcfbadfc1df54081c1608579ef6b2 # v2.22.2
-        with:
-          egress-policy: audit
-
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-        with:
-          persist-credentials: false
-      - name: Check the path filters of the compiler workflows
-        run: python3 tools/check_path_filters/check_path_filters.py
-      - name: Check the job sets of the compiler workflows and their documentation
-        run: |
-          python3 -m venv venv
-          venv/bin/pip install --quiet -r tools/ci_jobs/requirements.txt
-          venv/bin/python tools/ci_jobs/ci_jobs.py
-
-  ci_reuse_compliance:
-    runs-on: ubuntu-26.04
-    steps:
-      - name: Harden Runner
-        uses: step-security/harden-runner@dc2769abcc0fcfbadfc1df54081c1608579ef6b2 # v2.22.2
-        with:
-          egress-policy: audit
-
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-        with:
-          persist-credentials: false
-      - name: Get latest CMake and ninja
-        uses: lukka/get-cmake@a89e43e22a96abafcd7a62db652a65ecd33052c9 # v4.4.4
-      - name: Run CMake
-        run: cmake -S . -B build -DJSON_CI=On
-      - name: Build
-        run: cmake --build build --target ci_reuse_compliance
-
-  ci_test_documentation:
-    runs-on: ubuntu-26.04
-    strategy:
-      matrix:
-        target: [ci_test_examples, ci_test_build_documentation, ci_test_documentation_mermaid]
-    steps:
-      - name: Harden Runner
-        uses: step-security/harden-runner@dc2769abcc0fcfbadfc1df54081c1608579ef6b2 # v2.22.2
-        with:
-          egress-policy: audit
-
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-        with:
-          persist-credentials: false
-          # the git-revision-date-localized plugin needs the history; a shallow clone makes the strict build fail
-          fetch-depth: ${{ matrix.target == 'ci_test_build_documentation' && '0' || '1' }}
-      - uses: actions/setup-node@949feb2413d6458794dcd2491c4babbbce0c15c1 # v7.1.0
-        if: matrix.target == 'ci_test_documentation_mermaid'
-        with:
-          node-version: 24
-      - name: Run CMake
-        run: cmake -S . -B build -DJSON_CI=On
-      - name: Build
-        run: cmake --build build --target ${{ matrix.target }}
@@ -40,7 +40,7 @@ jobs:

    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@dc2769abcc0fcfbadfc1df54081c1608579ef6b2 # v2.22.2
+        uses: step-security/harden-runner@ccd8616d44fd3846e67624a50d5aad6d37bf2d25 # v2.22.1
        with:
          egress-policy: audit

@@ -80,6 +80,6 @@ jobs:

      # Upload the results to GitHub's code scanning dashboard.
      - name: "Upload to code-scanning"
-        uses: github/codeql-action/upload-sarif@9b3254085494b55a0f7c4c2b3d2d52cc712ce370 # v4.39.1
+        uses: github/codeql-action/upload-sarif@6f2ac81f5cd81fe351a197ba0b00d91d03cd2aee # v4.39.0
        with:
          sarif_file: results.sarif
@@ -36,7 +36,7 @@ jobs:
    runs-on: ubuntu-26.04
    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@dc2769abcc0fcfbadfc1df54081c1608579ef6b2 # v2.22.2
+        uses: step-security/harden-runner@ccd8616d44fd3846e67624a50d5aad6d37bf2d25 # v2.22.1
        with:
          egress-policy: audit

@@ -65,7 +65,7 @@ jobs:

      # Upload SARIF file generated in previous step
      - name: Upload SARIF file
-        uses: github/codeql-action/upload-sarif@9b3254085494b55a0f7c4c2b3d2d52cc712ce370 # v4.39.1
+        uses: github/codeql-action/upload-sarif@6f2ac81f5cd81fe351a197ba0b00d91d03cd2aee # v4.39.0
        with:
          sarif_file: semgrep.sarif
        if: always()
@@ -16,7 +16,7 @@ jobs:

    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@dc2769abcc0fcfbadfc1df54081c1608579ef6b2 # v2.22.2
+        uses: step-security/harden-runner@ccd8616d44fd3846e67624a50d5aad6d37bf2d25 # v2.22.1
        with:
          egress-policy: audit

@@ -7,62 +7,17 @@ on:
      - master
      - release/*
  pull_request:
-    # labeled: the "🚀 ready to merge" label starts the full set (see below)
-    types: [opened, synchronize, reopened, labeled]
-    # Skip pull requests that change only files no job here reads. The list is checked by
-    # tools/check_path_filters/check_path_filters.py (repository_checks.yml); change both together.
-    paths:
-      - '**'
-      - '!docs/**'
-      - '!**.md'
-      - '!.github/*'
-      - '!.github/ISSUE_TEMPLATE/**'
-      - '!.github/external_ci/**'
-      - '!.github/workflows/**'
-      - '!.reuse/**'
-      - '!LICENSES/**'
-      - '!CITATION.cff'
-      - '!REUSE.toml'
-      # read by tools/check_build_options in the ci_meson_install job (ubuntu.yml)
-      - 'docs/mkdocs/docs/integration/package_managers.md'
-      # built by the swiftpm job (macos.yml)
-      - 'docs/mkdocs/docs/integration/swift/**'
-      - '.github/workflows/ubuntu.yml'
-  schedule:
-    # the nightly set (see below), on develop
-    - cron: '0 2 * * *'
  workflow_dispatch:

 permissions:
  contents: read

-# A run triggered by any other label gets a group of its own, so it does not
-# cancel the run of the last push; its jobs are skipped.
 concurrency:
-  group: ${{ github.workflow }}-${{ github.event_name == 'schedule' && 'nightly' || github.ref || github.run_id }}${{ github.event.action == 'labeled' && github.event.label.name != '🚀 ready to merge' && format('-{0}', github.run_id) || '' }}
+  group: ${{ github.workflow }}-${{ github.ref || github.run_id }}
  cancel-in-progress: true

-# The jobs are split into three sets (see "How CI runs" in
-# docs/mkdocs/docs/community/quality_assurance.md):
-#
-# - PR set: every pull request push and every push; chosen because these jobs
-#   caught 92 % of the failing commits in Sep/Oct 2026.
-# - full set: after the PR set passed, on pushes and on pull requests with the
-#   "🚀 ready to merge" label; every remaining compiler, version and standard.
-# - nightly set: slow tools and rare compilers, nightly on develop, on pushes
-#   to master and release/*, and when started by hand.
-#
-# A matrix whose entries belong to different sets is split into one job per
-# set; the jobs share their steps through YAML anchors. tools/ci_jobs checks
-# that every job belongs to exactly one set.
-
 jobs:
-  ###########################################################################
-  # PR set
-  ###########################################################################
-
  ci_test_gcc:
-    if: &pr_set ${{ github.event_name != 'schedule' && (github.event.action != 'labeled' || github.event.label.name == '🚀 ready to merge') }}
    runs-on: ubuntu-latest
    container: gcc:latest
    steps:
@@ -77,7 +32,6 @@ jobs:
        run: cmake --build build --target ci_test_gcc

  ci_meson_install:
-    if: *pr_set
    runs-on: ubuntu-26.04
    steps:
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
@@ -122,15 +76,43 @@ jobs:
          cmake -S tests/cmake_import/project -B build-import-split -DCMAKE_PREFIX_PATH=${{ github.workspace }}/install-split
          cmake --build build-import-split

+  ci_infer:
+    runs-on: ubuntu-26.04
+    steps:
+      - name: Harden Runner
+        uses: step-security/harden-runner@ccd8616d44fd3846e67624a50d5aad6d37bf2d25 # v2.22.1
+        with:
+          egress-policy: audit
+
+      - name: Install Infer
+        run: |
+          wget -q -O - "https://github.com/facebook/infer/releases/download/v1.3.0/infer-linux-x86_64-v1.3.0.tar.xz" | sudo tar -C /opt -xJ
+          sudo ln -s /opt/infer-linux-x86_64-v1.3.0/bin/infer /usr/local/bin/infer
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
+      - name: Get latest CMake and ninja
+        uses: lukka/get-cmake@a89e43e22a96abafcd7a62db652a65ecd33052c9 # v4.4.4
+      - name: Run CMake
+        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@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2
+        with:
+          name: infer-report
+          path: ${{ github.workspace }}/build/build_infer/infer-out/report.txt
+          if-no-files-found: ignore
+
  ci_static_analysis_ubuntu:
-    if: *pr_set
    runs-on: ubuntu-26.04
    strategy:
      matrix:
-        target: [ci_cpplint]
-    steps: &static_analysis_ubuntu_steps
+        target: [ci_test_single_header, ci_cppcheck, ci_cpplint, ci_reproducible_tests, ci_non_git_tests, ci_offline_testdata, ci_reuse_compliance, ci_test_valgrind]
+    steps:
      - name: Harden Runner
-        uses: step-security/harden-runner@dc2769abcc0fcfbadfc1df54081c1608579ef6b2 # v2.22.2
+        uses: step-security/harden-runner@ccd8616d44fd3846e67624a50d5aad6d37bf2d25 # v2.22.1
        with:
          egress-policy: audit

@@ -148,13 +130,12 @@ jobs:
        run: cmake --build build --target ${{ matrix.target }}

  ci_static_analysis_clang:
-    if: *pr_set
    runs-on: ubuntu-latest
    container: silkeh/clang:22
    strategy:
      matrix:
-        target: [ci_test_clang, ci_clang_tidy, ci_test_clang_sanitizer, ci_single_binaries]
-    steps: &static_analysis_clang_steps
+        target: [ci_test_clang, ci_clang_tidy, ci_test_clang_sanitizer, ci_clang_analyze, ci_single_binaries]
+    steps:
      - name: Install git, clang-tools, iwyu (ci_single_binaries), and unzip
        run: apt-get update ; apt-get install -y git clang-tools iwyu unzip
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
@@ -168,13 +149,12 @@ jobs:
        run: cmake --build build --target ${{ matrix.target }}

  ci_cmake_options:
-    if: *pr_set
    runs-on: ubuntu-latest
    container: ubuntu:24.04
    strategy:
      matrix:
-        target: [ci_test_diagnostics, ci_test_diagnostic_positions, ci_test_noexceptions, ci_test_noglobaludls]
-    steps: &cmake_options_steps
+        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_delete_deprecated_functions, ci_test_no_thread_local]
+    steps:
      - name: Install build-essential
        run: apt-get update ; apt-get install -y build-essential unzip wget git
      # the CMake 3.5.0 release binary that ci_cmake_flags downloads links
@@ -194,17 +174,50 @@ jobs:
      - name: Build
        run: cmake --build build --target ${{ matrix.target }}

+  ci_test_coverage:
+    runs-on: ubuntu-26.04
+    steps:
+      - name: Harden Runner
+        uses: step-security/harden-runner@ccd8616d44fd3846e67624a50d5aad6d37bf2d25 # v2.22.1
+        with:
+          egress-policy: audit
+
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
+      - name: Install dependencies and de_DE locale
+        run: |
+          sudo apt-get clean
+          sudo apt-get update
+          sudo apt-get install -y build-essential cmake lcov ninja-build make locales gcc-multilib g++-multilib
+          sudo locale-gen de_DE
+          sudo update-locale
+      - name: Run CMake
+        run: cmake -S . -B build -DJSON_CI=On
+      - name: Build
+        run: cmake --build build --target ci_test_coverage
+      - name: Archive coverage report
+        uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2
+        with:
+          name: code-coverage-report
+          path: ${{ github.workspace }}/build/html
+      - name: Publish report to Coveralls
+        uses: coverallsapp/github-action@8d6379e14d29928660c4ba802d8e85393440b329 # v2.3.8
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          path-to-lcov: ${{ github.workspace }}/build/json.info.filtered.noexcept
+          fail-on-error: false
+
  ci_test_compilers_gcc_old:
-    if: *pr_set
    runs-on: ubuntu-latest
    strategy:
      matrix:
-        compiler: ['4.8']
+        compiler: ['4.8', '4.9', '5', '6']
    # official gcc:4.8/4.9/5/6 images fail to check out code (too old for
    # actions/checkout); install the old compilers on top of official ubuntu:20.04
    # instead, mirroring what the (now retired) custom json-ci image did.
    container: ubuntu:20.04
-    steps: &compilers_gcc_old_steps
+    steps:
      - name: Install g++-${{ matrix.compiler }}
        run: |
          export DEBIAN_FRONTEND=noninteractive
@@ -237,137 +250,7 @@ jobs:
      - name: Build
        run: cmake --build build --target ci_test_compiler_g++-${{ matrix.compiler }}

-  ci_test_compilers_clang:
-    if: *pr_set
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        compiler: ['3.4']
-    container: silkeh/clang:${{ matrix.compiler }}
-    steps: &compilers_clang_steps
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-        with:
-          persist-credentials: false
-      - name: Get latest CMake and ninja
-        uses: lukka/get-cmake@a89e43e22a96abafcd7a62db652a65ecd33052c9 # v4.4.4
-      - name: Disable filesystem support (std::filesystem is unusable) for clang 7 / 8 / 9 / 10
-        run: echo "JSON_FORCED_GLOBAL_COMPILE_OPTIONS=-DJSON_HAS_FILESYSTEM=0;-DJSON_HAS_EXPERIMENTAL_FILESYSTEM=0" >> "$GITHUB_ENV"
-        if: ${{ matrix.compiler == '7' || matrix.compiler == '8' || matrix.compiler == '9' || matrix.compiler == '10' }}
-      - name: Run CMake
-        run: cmake -S . -B build -DJSON_CI=On
-      - name: Build
-        run: cmake --build build --target ci_test_compiler_default
-
-  ci_test_standards_gcc:
-    if: *pr_set
-    runs-on: ubuntu-latest
-    container: gcc:latest
-    strategy:
-      matrix:
-        standard: [26]
-    steps: &standards_gcc_steps
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-        with:
-          persist-credentials: false
-      - name: Get latest CMake and ninja
-        uses: lukka/get-cmake@a89e43e22a96abafcd7a62db652a65ecd33052c9 # v4.4.4
-      - name: Run CMake
-        run: cmake -S . -B build -DJSON_CI=On
-      - name: Build
-        run: cmake --build build --target ci_test_gcc_cxx${{ matrix.standard }}
-
-  ci_test_standards_clang:
-    if: *pr_set
-    runs-on: ubuntu-latest
-    container: silkeh/clang:latest
-    strategy:
-      matrix:
-        standard: [26]
-        stdlib: [libcxx]
-    steps: &standards_clang_steps
-      - name: Install git and unzip
-        run: apt-get update ; apt-get install -y git unzip
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-        with:
-          persist-credentials: false
-      - name: Get latest CMake and ninja
-        uses: lukka/get-cmake@a89e43e22a96abafcd7a62db652a65ecd33052c9 # v4.4.4
-      - name: Run CMake
-        run: cmake -S . -B build -DJSON_CI=On
-      - name: Build with libc++
-        run: cmake --build build --target ci_test_clang_libcxx_cxx${{ matrix.standard }}
-        if: ${{ matrix.stdlib == 'libcxx' }}
-      - name: Build with libstdc++
-        run: cmake --build build --target ci_test_clang_cxx${{ matrix.standard }}
-        if: ${{ matrix.stdlib == 'libstdcxx' }}
-
-  ci_emscripten:
-    if: *pr_set
-    runs-on: ubuntu-26.04
-    steps:
-      - name: Harden Runner
-        uses: step-security/harden-runner@dc2769abcc0fcfbadfc1df54081c1608579ef6b2 # v2.22.2
-        with:
-          egress-policy: audit
-
-      - name: Install emscripten
-        uses: mymindstorm/setup-emsdk@4528d102f7230f0e7b276855c01ea1159be0e984 # v16
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-        with:
-          persist-credentials: false
-      - name: Get latest CMake and ninja
-        uses: lukka/get-cmake@a89e43e22a96abafcd7a62db652a65ecd33052c9 # v4.4.4
-      - name: Run CMake
-        run: cmake -S . -B build -DCMAKE_TOOLCHAIN_FILE=$EMSDK/upstream/emscripten/cmake/Modules/Platform/Emscripten.cmake -GNinja
-      - name: Build
-        run: cmake --build build
-
-  ###########################################################################
-  # full set: starts after the PR set passed
-  ###########################################################################
-
-  ci_static_analysis_ubuntu_full:
-    needs: &pr_set_jobs [ci_test_gcc, ci_meson_install, ci_static_analysis_ubuntu, ci_static_analysis_clang, ci_cmake_options, ci_test_compilers_gcc_old, ci_test_compilers_clang, ci_test_standards_gcc, ci_test_standards_clang, ci_emscripten]
-    if: &full_set ${{ github.event_name == 'push' || github.event_name == 'workflow_dispatch' || contains(github.event.pull_request.labels.*.name, '🚀 ready to merge') }}
-    runs-on: ubuntu-26.04
-    strategy:
-      matrix:
-        target: [ci_test_single_header, ci_cppcheck, ci_reproducible_tests, ci_non_git_tests, ci_offline_testdata]
-    steps: *static_analysis_ubuntu_steps
-
-  ci_static_analysis_clang_full:
-    needs: *pr_set_jobs
-    if: *full_set
-    runs-on: ubuntu-latest
-    container: silkeh/clang:22
-    strategy:
-      matrix:
-        target: [ci_clang_analyze]
-    steps: *static_analysis_clang_steps
-
-  ci_cmake_options_full:
-    needs: *pr_set_jobs
-    if: *full_set
-    runs-on: ubuntu-latest
-    container: ubuntu:24.04
-    strategy:
-      matrix:
-        target: [ci_cmake_flags, ci_test_noimplicitconversions, ci_test_legacycomparison, ci_test_disableenumserialization, ci_test_disabletuplereferenceconversion, ci_test_skiplibraryversioncheck, ci_test_simdutf, ci_test_strict_nul_handling, ci_test_delete_deprecated_functions, ci_test_no_thread_local]
-    steps: *cmake_options_steps
-
-  ci_test_compilers_gcc_old_full:
-    needs: *pr_set_jobs
-    if: *full_set
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        compiler: ['4.9', '5', '6']
-    container: ubuntu:20.04
-    steps: *compilers_gcc_old_steps
-
-  ci_test_compilers_gcc_full:
-    needs: *pr_set_jobs
-    if: *full_set
+  ci_test_compilers_gcc:
    runs-on: ubuntu-latest
    strategy:
      matrix:
@@ -385,44 +268,91 @@ jobs:
      - name: Build
        run: cmake --build build --target ci_test_compiler_default

-  ci_test_compilers_clang_full:
-    needs: *pr_set_jobs
-    if: *full_set
+  ci_test_compilers_clang:
    runs-on: ubuntu-latest
    strategy:
      matrix:
-        compiler: ['3.5', '3.6', '3.7', '3.8', '3.9', '4', '5', '6', '7', '8', '9', '10', '11', '12', '13', '14', '15-bullseye', '16', '17', '18', '19', '20', '21', '22', 'latest']
+        compiler: ['3.4', '3.5', '3.6', '3.7', '3.8', '3.9', '4', '5', '6', '7', '8', '9', '10', '11', '12', '13', '14', '15-bullseye', '16', '17', '18', '19', '20', '21', '22', 'latest']
    container: silkeh/clang:${{ matrix.compiler }}
-    steps: *compilers_clang_steps
+    steps:
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
+      - name: Get latest CMake and ninja
+        uses: lukka/get-cmake@a89e43e22a96abafcd7a62db652a65ecd33052c9 # v4.4.4
+      - name: Disable filesystem support (std::filesystem is unusable) for clang 7 / 8 / 9 / 10
+        run: echo "JSON_FORCED_GLOBAL_COMPILE_OPTIONS=-DJSON_HAS_FILESYSTEM=0;-DJSON_HAS_EXPERIMENTAL_FILESYSTEM=0" >> "$GITHUB_ENV"
+        if: ${{ matrix.compiler == '7' || matrix.compiler == '8' || matrix.compiler == '9' || matrix.compiler == '10' }}
+      - name: Run CMake
+        run: cmake -S . -B build -DJSON_CI=On
+      - name: Build
+        run: cmake --build build --target ci_test_compiler_default

-  ci_test_standards_gcc_full:
-    needs: *pr_set_jobs
-    if: *full_set
+  ci_test_standards_gcc:
    runs-on: ubuntu-latest
    container: gcc:latest
    strategy:
      matrix:
-        standard: [11, 14, 17, 20, 23]
-    steps: *standards_gcc_steps
+        standard: [11, 14, 17, 20, 23, 26]
+    steps:
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
+      - name: Get latest CMake and ninja
+        uses: lukka/get-cmake@a89e43e22a96abafcd7a62db652a65ecd33052c9 # v4.4.4
+      - name: Run CMake
+        run: cmake -S . -B build -DJSON_CI=On
+      - name: Build
+        run: cmake --build build --target ci_test_gcc_cxx${{ matrix.standard }}

-  ci_test_standards_clang_full:
-    needs: *pr_set_jobs
-    if: *full_set
+  ci_test_standards_clang:
    runs-on: ubuntu-latest
    container: silkeh/clang:latest
    strategy:
      matrix:
        standard: [11, 14, 17, 20, 23, 26]
        stdlib: [libcxx, libstdcxx]
-        exclude:
-          # in the PR set
-          - standard: 26
-            stdlib: libcxx
-    steps: *standards_clang_steps
+    steps:
+      - name: Install git and unzip
+        run: apt-get update ; apt-get install -y git unzip
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
+      - name: Get latest CMake and ninja
+        uses: lukka/get-cmake@a89e43e22a96abafcd7a62db652a65ecd33052c9 # v4.4.4
+      - name: Run CMake
+        run: cmake -S . -B build -DJSON_CI=On
+      - name: Build with libc++
+        run: cmake --build build --target ci_test_clang_libcxx_cxx${{ matrix.standard }}
+        if: ${{ matrix.stdlib == 'libcxx' }}
+      - name: Build with libstdc++
+        run: cmake --build build --target ci_test_clang_cxx${{ matrix.standard }}
+        if: ${{ matrix.stdlib == 'libstdcxx' }}
+
+  ci_cuda_example:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        # 11.8.0: newest pre-C++20 CUDA release, exercises the C++17 fallback
+        # path (tests/cuda_example/CMakeLists.txt picks the standard per nvcc
+        # version); 12.1.1: permanent regression guard for #3907 (nvcc 12.0/12.1
+        # choke on enable_borrowed_range at C++20, fixed in 12.2); 12.6.3: recent
+        # CUDA/C++20 coverage.
+        cuda: ['11.8.0', '12.1.1', '12.6.3']
+    container: nvidia/cuda:${{ matrix.cuda }}-devel-ubuntu22.04
+    steps:
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
+      - name: Get latest CMake and ninja
+        uses: lukka/get-cmake@a89e43e22a96abafcd7a62db652a65ecd33052c9 # v4.4.4
+      - name: Run CMake
+        run: cmake -S . -B build -DJSON_CI=On
+      - name: Build
+        run: cmake --build build --target ci_cuda_example

  ci_module_cpp20:
-    needs: *pr_set_jobs
-    if: *full_set
    strategy:
      matrix:
        container: ['gcc:latest', 'silkeh/clang:latest']
@@ -452,109 +382,7 @@ jobs:
      - name: Build
        run: cmake --build build --target ci_module_cpp20

-  ###########################################################################
-  # nightly set
-  ###########################################################################
-
-  ci_infer:
-    if: &nightly_set ${{ github.event_name == 'schedule' || github.event_name == 'workflow_dispatch' || (github.event_name == 'push' && github.ref != 'refs/heads/develop') }}
-    runs-on: ubuntu-26.04
-    steps:
-      - name: Harden Runner
-        uses: step-security/harden-runner@dc2769abcc0fcfbadfc1df54081c1608579ef6b2 # v2.22.2
-        with:
-          egress-policy: audit
-
-      - name: Install Infer
-        run: |
-          wget -q -O - "https://github.com/facebook/infer/releases/download/v1.3.0/infer-linux-x86_64-v1.3.0.tar.xz" | sudo tar -C /opt -xJ
-          sudo ln -s /opt/infer-linux-x86_64-v1.3.0/bin/infer /usr/local/bin/infer
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-        with:
-          persist-credentials: false
-      - name: Get latest CMake and ninja
-        uses: lukka/get-cmake@a89e43e22a96abafcd7a62db652a65ecd33052c9 # v4.4.4
-      - name: Run CMake
-        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@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2
-        with:
-          name: infer-report
-          path: ${{ github.workspace }}/build/build_infer/infer-out/report.txt
-          if-no-files-found: ignore
-
-  ci_static_analysis_ubuntu_nightly:
-    if: *nightly_set
-    runs-on: ubuntu-26.04
-    strategy:
-      matrix:
-        target: [ci_test_valgrind]
-    steps: *static_analysis_ubuntu_steps
-
-  ci_test_coverage:
-    if: *nightly_set
-    runs-on: ubuntu-26.04
-    steps:
-      - name: Harden Runner
-        uses: step-security/harden-runner@dc2769abcc0fcfbadfc1df54081c1608579ef6b2 # v2.22.2
-        with:
-          egress-policy: audit
-
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-        with:
-          persist-credentials: false
-      - name: Install dependencies and de_DE locale
-        run: |
-          sudo apt-get clean
-          sudo apt-get update
-          sudo apt-get install -y build-essential cmake lcov ninja-build make locales gcc-multilib g++-multilib
-          sudo locale-gen de_DE
-          sudo update-locale
-      - name: Run CMake
-        run: cmake -S . -B build -DJSON_CI=On
-      - name: Build
-        run: cmake --build build --target ci_test_coverage
-      - name: Archive coverage report
-        uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2
-        with:
-          name: code-coverage-report
-          path: ${{ github.workspace }}/build/html
-      - name: Publish report to Coveralls
-        uses: coverallsapp/github-action@8d6379e14d29928660c4ba802d8e85393440b329 # v2.3.8
-        with:
-          github-token: ${{ secrets.GITHUB_TOKEN }}
-          path-to-lcov: ${{ github.workspace }}/build/json.info.filtered.noexcept
-          fail-on-error: false
-
-  ci_cuda_example:
-    if: *nightly_set
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        # 11.8.0: newest pre-C++20 CUDA release, exercises the C++17 fallback
-        # path (tests/cuda_example/CMakeLists.txt picks the standard per nvcc
-        # version); 12.1.1: permanent regression guard for #3907 (nvcc 12.0/12.1
-        # choke on enable_borrowed_range at C++20, fixed in 12.2); 12.6.3: recent
-        # CUDA/C++20 coverage.
-        cuda: ['11.8.0', '12.1.1', '12.6.3']
-    container: nvidia/cuda:${{ matrix.cuda }}-devel-ubuntu22.04
-    steps:
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-        with:
-          persist-credentials: false
-      - name: Get latest CMake and ninja
-        uses: lukka/get-cmake@a89e43e22a96abafcd7a62db652a65ecd33052c9 # v4.4.4
-      - name: Run CMake
-        run: cmake -S . -B build -DJSON_CI=On
-      - name: Build
-        run: cmake --build build --target ci_cuda_example
-
  ci_icpc:
-    if: *nightly_set
    runs-on: ubuntu-latest
    # Intel discontinued the classic icc/icpc compiler in oneAPI 2024.0; this is
    # Intel's own last officially published image that still includes it.
@@ -574,7 +402,6 @@ jobs:
        run: cmake --build build --target ci_icpc

  ci_icpx:
-    if: *nightly_set
    runs-on: ubuntu-latest
    container: intel/oneapi-hpckit:latest
    steps:
@@ -589,7 +416,6 @@ jobs:
        run: cmake --build build --target ci_icpx

  ci_nvhpc:
-    if: *nightly_set
    runs-on: ubuntu-latest
    container: nvcr.io/nvidia/nvhpc:25.5-devel-cuda12.9-ubuntu22.04
    steps:
@@ -603,10 +429,54 @@ jobs:
      - name: Build
        run: cmake --build build --target ci_nvhpc

+  ci_emscripten:
+    runs-on: ubuntu-26.04
+    steps:
+      - name: Harden Runner
+        uses: step-security/harden-runner@ccd8616d44fd3846e67624a50d5aad6d37bf2d25 # v2.22.1
+        with:
+          egress-policy: audit
+
+      - name: Install emscripten
+        uses: mymindstorm/setup-emsdk@4528d102f7230f0e7b276855c01ea1159be0e984 # v16
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
+      - name: Get latest CMake and ninja
+        uses: lukka/get-cmake@a89e43e22a96abafcd7a62db652a65ecd33052c9 # v4.4.4
+      - name: Run CMake
+        run: cmake -S . -B build -DCMAKE_TOOLCHAIN_FILE=$EMSDK/upstream/emscripten/cmake/Modules/Platform/Emscripten.cmake -GNinja
+      - name: Build
+        run: cmake --build build
+
+  ci_test_documentation:
+    runs-on: ubuntu-26.04
+    strategy:
+      matrix:
+        target: [ci_test_examples, ci_test_build_documentation, ci_test_documentation_mermaid]
+    steps:
+      - name: Harden Runner
+        uses: step-security/harden-runner@ccd8616d44fd3846e67624a50d5aad6d37bf2d25 # v2.22.1
+        with:
+          egress-policy: audit
+
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
+          # the git-revision-date-localized plugin needs the history; a shallow clone makes the strict build fail
+          fetch-depth: ${{ matrix.target == 'ci_test_build_documentation' && '0' || '1' }}
+      - uses: actions/setup-node@949feb2413d6458794dcd2491c4babbbce0c15c1 # v7.1.0
+        if: matrix.target == 'ci_test_documentation_mermaid'
+        with:
+          node-version: 24
+      - name: Run CMake
+        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:
-    if: *nightly_set
    runs-on: ubuntu-24.04-arm
    container: gcc:latest
    steps:
@@ -621,33 +491,3 @@ jobs:
        run: cmake -S . -B build -DJSON_CI=On
      - name: Build
        run: cmake --build build --target ci_test_compiler_default
-
-  # A failure of a scheduled run opens an issue, or comments on the open one.
-  nightly_report:
-    needs: [ci_infer, ci_static_analysis_ubuntu_nightly, ci_test_coverage, ci_cuda_example, ci_icpc, ci_icpx, ci_nvhpc, ci_test_arm64]
-    if: ${{ always() && github.event_name == 'schedule' && contains(needs.*.result, 'failure') }}
-    runs-on: ubuntu-26.04
-    permissions:
-      issues: write
-    steps:
-      - name: Harden Runner
-        uses: step-security/harden-runner@dc2769abcc0fcfbadfc1df54081c1608579ef6b2 # v2.22.2
-        with:
-          egress-policy: audit
-
-      - name: Open or update the nightly failure issue
-        env:
-          GH_TOKEN: ${{ github.token }}
-          GH_REPO: ${{ github.repository }}
-          RUN_URL: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}
-          WORKFLOW: ${{ github.workflow }}
-          SHA: ${{ github.sha }}
-        run: |
-          title="Nightly CI failure (${WORKFLOW})"
-          body="The nightly run of ${WORKFLOW} on ${SHA:0:10} failed: ${RUN_URL}"
-          number=$(gh issue list --state open --search "in:title \"${title}\"" --json number,title --jq "map(select(.title == \"${title}\")) | .[0].number // empty")
-          if [ -n "$number" ]; then
-            gh issue comment "$number" --body "$body"
-          else
-            gh issue create --title "$title" --body "$body"
-          fi
@@ -7,25 +7,6 @@ on:
      - master
      - release/*
  pull_request:
-    # Skip pull requests that change only files no job here reads. The list is checked by
-    # tools/check_path_filters/check_path_filters.py (repository_checks.yml); change both together.
-    paths:
-      - '**'
-      - '!docs/**'
-      - '!**.md'
-      - '!.github/*'
-      - '!.github/ISSUE_TEMPLATE/**'
-      - '!.github/external_ci/**'
-      - '!.github/workflows/**'
-      - '!.reuse/**'
-      - '!LICENSES/**'
-      - '!CITATION.cff'
-      - '!REUSE.toml'
-      # read by tools/check_build_options in the ci_meson_install job (ubuntu.yml)
-      - 'docs/mkdocs/docs/integration/package_managers.md'
-      # built by the swiftpm job (macos.yml)
-      - 'docs/mkdocs/docs/integration/swift/**'
-      - '.github/workflows/windows.yml'
  workflow_dispatch:

 permissions:
@@ -47,7 +28,7 @@ jobs:
        with:
          persist-credentials: false
      - name: Set up MinGW
-        uses: egor-tensin/setup-mingw@d54f5ef0ce585bd3fbb1f8a71b5b254f59dbf931 # v3.0
+        uses: egor-tensin/setup-mingw@41b837e47d7f85214629d255b9c4bc3fcbe9fd63 # v3.0
        with:
          platform: ${{ matrix.architecture }}
          version: 12.2.0 # https://github.com/egor-tensin/setup-mingw/issues/14
@@ -172,7 +153,7 @@ jobs:
      - name: Install Clang
        run: curl -fsSL -o LLVM${{ matrix.version }}.exe https://github.com/llvm/llvm-project/releases/download/llvmorg-${{ matrix.version }}/LLVM-${{ matrix.version }}-win64.exe ; 7z x LLVM${{ matrix.version }}.exe -y -o"C:/Program Files/LLVM"
      - name: Set up MinGW
-        uses: egor-tensin/setup-mingw@d54f5ef0ce585bd3fbb1f8a71b5b254f59dbf931 # v3.0
+        uses: egor-tensin/setup-mingw@41b837e47d7f85214629d255b9c4bc3fcbe9fd63 # v3.0
        with:
          platform: x64
          version: 12.2.0 # https://github.com/egor-tensin/setup-mingw/issues/14
@@ -1408,9 +1408,9 @@ THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR I
 - The class contains a port of the shortest double-to-decimal conversion of [Żmij](https://github.com/vitaut/zmij) by Victor Zverovich, including the conversion of the digits to text by Xiang JunBo and the SIMD instruction sequence of Dougall Johnson, which is licensed under the [MIT License](https://opensource.org/licenses/MIT) (see above). Copyright &copy; 2025 [Victor Zverovich](https://github.com/vitaut)
 - 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, its table of powers of five, its digit comparison for long numbers, and its parsing of eight digits at a time 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
+- The class contains an adapted version of the Eisel-Lemire algorithm, its table of powers of five, and its digit comparison for long numbers 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
 - The view's parser (`<nlohmann/json_view.hpp>`) contains techniques and code adapted from [yyjson](https://github.com/ibireme/yyjson) by YaoYuan, which is licensed under the [MIT License](https://opensource.org/licenses/MIT) (see above): table-driven decoding of `\u` escapes and fixed-offset unrolled checks.
- The class's lexer and the view's parser (`<nlohmann/json_view.hpp>`) validate non-ASCII strings with the vector UTF-8 check of [simdjson](https://github.com/simdjson/simdjson) by Daniel Lemire, Geoff Langdale, John Keiser, and contributors (its "lookup4" algorithm and tables, after J. Keiser and D. Lemire, "Validating UTF-8 In Less Than One Instruction Per Byte", 2021), which is available under the [MIT License](https://opensource.org/licenses/MIT) (used here) and the Apache 2.0 License. Copyright &copy; 2018-2025 The simdjson authors
+- The view's parser (`<nlohmann/json_view.hpp>`) validates non-ASCII strings with the vector UTF-8 check of [simdjson](https://github.com/simdjson/simdjson) by Daniel Lemire, Geoff Langdale, John Keiser, and contributors (its "lookup4" algorithm and tables, after J. Keiser and D. Lemire, "Validating UTF-8 In Less Than One Instruction Per Byte", 2021), which is available under the [MIT License](https://opensource.org/licenses/MIT) (used here) and the Apache 2.0 License. Copyright &copy; 2018-2025 The simdjson authors

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

@@ -13,72 +13,6 @@ describe each of them.

 <p class="nj-caption" markdown>The checks grouped by the stage at which they run, from push or pull request through the merge into develop to a release. The badge on each card says whether the check runs on every push or PR, on a schedule, or continuously.</p>

-## How CI runs
-
-Not every job runs for every change. The compiler jobs on Ubuntu are split into three sets, so a pull request gets fast
-feedback and the long jobs run when they matter:
-
-| Set         | When it runs                                                                                                      | What it contains                                                                                                                                                                       |
-|-------------|-------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
-| PR set      | every push to a pull request, and every push to `develop`, `master`, and `release/*`                              | GCC and Clang with all warnings, Clang-Tidy, sanitizers, IWYU, cpplint, the oldest and newest GCC and Clang, common CMake options, Meson, Emscripten; with the checks that always run, they would have caught at least 92 % of the failing commits of September and October 2026 |
-| full set    | after the PR set passed: on pull requests with the label :rocket: ready to merge, and on every push                | every other compiler, version, C++ standard, and CMake option, the Clang Static Analyzer, Cppcheck, and the C++20 module tests                                                         |
-| nightly set | every night on `develop`, on every push to `master` and `release/*`, and when started by hand                      | Infer, Valgrind, coverage, the Intel and NVIDIA compilers, CUDA, and ARM64; a failure opens an issue                                                                                    |
-
-The jobs on macOS and Windows, the documentation and license checks, and the amalgamation check run on every push and
-pull request. A pull request that changes only the documentation, Markdown files, GitHub metadata, or license files
-skips the compiler workflows (see [`tools/check_path_filters`](https://github.com/nlohmann/json/tree/develop/tools/check_path_filters)).
-
-A maintainer adds the label :rocket: ready to merge when a pull request is ready; the full set then runs, and again on
-every later push to that pull request. A pull request is merged only when the full set passed.
-
-??? abstract "Jobs of the compiler workflows and their sets"
-
-    The table is generated by [`tools/ci_jobs`](https://github.com/nlohmann/json/tree/develop/tools/ci_jobs), which
-    also checks in CI that it is up to date and that every job belongs to exactly one set.
-
-    <!-- ci_jobs: begin -->
-    | Set | Workflow | Job | Configurations |
-    |-----|----------|-----|----------------|
-    | PR set | ubuntu.yml | `ci_test_gcc` | - |
-    | PR set | ubuntu.yml | `ci_meson_install` | - |
-    | PR set | ubuntu.yml | `ci_static_analysis_ubuntu` | ci_cpplint |
-    | PR set | ubuntu.yml | `ci_static_analysis_clang` | ci_test_clang; ci_clang_tidy; ci_test_clang_sanitizer; ci_single_binaries |
-    | PR set | ubuntu.yml | `ci_cmake_options` | ci_test_diagnostics; ci_test_diagnostic_positions; ci_test_noexceptions; ci_test_noglobaludls |
-    | PR set | ubuntu.yml | `ci_test_compilers_gcc_old` | 4.8 |
-    | PR set | ubuntu.yml | `ci_test_compilers_clang` | 3.4 |
-    | PR set | ubuntu.yml | `ci_test_standards_gcc` | 26 |
-    | PR set | ubuntu.yml | `ci_test_standards_clang` | 26, libcxx |
-    | PR set | ubuntu.yml | `ci_emscripten` | - |
-    | full set | ubuntu.yml | `ci_static_analysis_ubuntu_full` | ci_test_single_header; ci_cppcheck; ci_reproducible_tests; ci_non_git_tests; ci_offline_testdata |
-    | full set | ubuntu.yml | `ci_static_analysis_clang_full` | ci_clang_analyze |
-    | full set | ubuntu.yml | `ci_cmake_options_full` | ci_cmake_flags; ci_test_noimplicitconversions; ci_test_legacycomparison; ci_test_disableenumserialization; ci_test_disabletuplereferenceconversion; ci_test_skiplibraryversioncheck; ci_test_simdutf; ci_test_strict_nul_handling; ci_test_delete_deprecated_functions; ci_test_no_thread_local |
-    | full set | ubuntu.yml | `ci_test_compilers_gcc_old_full` | 4.9; 5; 6 |
-    | full set | ubuntu.yml | `ci_test_compilers_gcc_full` | 7; 8; 9; 10; 11; 12; 13; 14; 15; 16; latest |
-    | full set | ubuntu.yml | `ci_test_compilers_clang_full` | 3.5; 3.6; 3.7; 3.8; 3.9; 4; 5; 6; 7; 8; 9; 10; 11; 12; 13; 14; 15-bullseye; 16; 17; 18; 19; 20; 21; 22; latest |
-    | full set | ubuntu.yml | `ci_test_standards_gcc_full` | 11; 14; 17; 20; 23 |
-    | full set | ubuntu.yml | `ci_test_standards_clang_full` | 11, libcxx; 11, libstdcxx; 14, libcxx; 14, libstdcxx; 17, libcxx; 17, libstdcxx; 20, libcxx; 20, libstdcxx; 23, libcxx; 23, libstdcxx; 26, libstdcxx |
-    | full set | ubuntu.yml | `ci_module_cpp20` | gcc:latest; silkeh/clang:latest |
-    | nightly set | ubuntu.yml | `ci_infer` | - |
-    | nightly set | ubuntu.yml | `ci_static_analysis_ubuntu_nightly` | ci_test_valgrind |
-    | nightly set | ubuntu.yml | `ci_test_coverage` | - |
-    | nightly set | ubuntu.yml | `ci_cuda_example` | 11.8.0; 12.1.1; 12.6.3 |
-    | nightly set | ubuntu.yml | `ci_icpc` | - |
-    | nightly set | ubuntu.yml | `ci_icpx` | - |
-    | nightly set | ubuntu.yml | `ci_nvhpc` | - |
-    | nightly set | ubuntu.yml | `ci_test_arm64` | - |
-    | every push and PR | macos.yml | `macos-15` | 16.0; 16.1; 16.2; 16.3; 16.4; 26.0.1; 26.1.1; 26.2; 26.3 |
-    | every push and PR | macos.yml | `macos-26` | 26.4.1; 26.5; 26.6 |
-    | every push and PR | macos.yml | `xcode_standards` | 11; 14; 17; 20; 23; 26 |
-    | every push and PR | macos.yml | `swiftpm` | - |
-    | every push and PR | windows.yml | `mingw` | x64; x86 |
-    | every push and PR | windows.yml | `msvc` | Debug, Win32, default; Debug, Win32, latest; Debug, x64, default; Debug, x64, latest; Release, Win32, default; Release, Win32, latest; Release, x64, default; Release, x64, latest |
-    | every push and PR | windows.yml | `msvc-vs2026` | Debug, Win32, default; Debug, Win32, latest; Debug, x64, default; Debug, x64, latest; Release, Win32, default; Release, Win32, latest; Release, x64, default; Release, x64, latest |
-    | every push and PR | windows.yml | `msvc-arm64` | Debug; Release |
-    | every push and PR | windows.yml | `clang` | 11.0.1; 12.0.1; 13.0.1; 14.0.6; 15.0.7; 16.0.6; 18.1.8; 19.1.7; 20.1.8 |
-    | every push and PR | windows.yml | `clang-cl` | Win32; x64 |
-    | every push and PR | windows.yml | `ci_module_cpp20` | - |
-    <!-- ci_jobs: end -->
-
 ## C++ language compliance and compiler compatibility

 !!! success "Requirement: Compiler support"
@@ -22,8 +22,8 @@ The class contains a port of the shortest double-to-decimal conversion of [Żmij

 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, its table of powers of five, its digit comparison for long numbers, and its parsing of eight digits at a time 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
+The class contains an adapted version of the Eisel-Lemire algorithm, its table of powers of five, and its digit comparison for long numbers 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

 The view's parser (`<nlohmann/json_view.hpp>`) contains techniques and code adapted from [yyjson](https://github.com/ibireme/yyjson) by YaoYuan, which is licensed under the [MIT License](https://opensource.org/licenses/MIT) (see above): table-driven decoding of `\u` escapes and fixed-offset unrolled checks.

-The class's lexer and the view's parser (`<nlohmann/json_view.hpp>`) validate non-ASCII strings with the vector UTF-8 check of [simdjson](https://github.com/simdjson/simdjson) by Daniel Lemire, Geoff Langdale, John Keiser, and contributors (its "lookup4" algorithm and tables, after J. Keiser and D. Lemire, "Validating UTF-8 In Less Than One Instruction Per Byte", 2021), which is available under the [MIT License](https://opensource.org/licenses/MIT) (used here) and the Apache 2.0 License. Copyright &copy; 2018-2025 The simdjson authors
+The view's parser (`<nlohmann/json_view.hpp>`) validates non-ASCII strings with the vector UTF-8 check of [simdjson](https://github.com/simdjson/simdjson) by Daniel Lemire, Geoff Langdale, John Keiser, and contributors (its "lookup4" algorithm and tables, after J. Keiser and D. Lemire, "Validating UTF-8 In Less Than One Instruction Per Byte", 2021), which is available under the [MIT License](https://opensource.org/licenses/MIT) (used here) and the Apache 2.0 License. Copyright &copy; 2018-2025 The simdjson authors
@@ -1,31 +1,26 @@
-<svg class="nj-fig nj-exceptions-qa nj-exceptions-qa--wide" viewBox="0 0 760 862" role="img" aria-labelledby="nj-qa-title-w nj-qa-desc-w" xmlns="http://www.w3.org/2000/svg">
+<svg class="nj-fig nj-exceptions-qa nj-exceptions-qa--wide" viewBox="0 0 760 808" role="img" aria-labelledby="nj-qa-title-w nj-qa-desc-w" xmlns="http://www.w3.org/2000/svg">
 <title id="nj-qa-title-w">Quality assurance pipeline</title>
-<desc id="nj-qa-desc-w">A push or pull request starts these checks; the badges say when each runs: Build matrix (every push / PR, before merge): 50+ compilers: G&#8203;CC, Clang, M&#8203;SVC, AppleClang, Intel, NVIDIA, ... C++11, 14, 17, 20, 23, and 26 libc++ and libstdc++ warnings: Clang -Weverything, G&#8203;CC 300+ warnings a subset on every push and PR, all before merge; Intel, NVIDIA, C&#8203;UDA, and ARM64 nightly; Unit tests (doctest) (every push / PR): every public A&#8203;PI function every exception id and message all Unicode code points single header and split headers custom number, string, array, and object types; Coverage (nightly): unit tests cover all lines of the code base; Static analysis (every push / PR, scheduled): Clang-Tidy, Cppcheck, Infer Clang Static Analyzer (52 checkers), I&#8203;WYU, Codacy CodeQL, Semgrep, Flawfinder (also scheduled); Infer nightly; Dynamic analysis (every push / PR, nightly): runtime assertions Valgrind (Memcheck), nightly address and undefined behavior sanitizers, integer overflow, nullability violations; Fuzzing (every PR, continuous): CIFuzz on every pull request OSS-Fuzz: billions of inputs every crash fixed with a reproducing unit test; Style (every push / PR): Artistic Style (astyle), enforced in the C&#8203;I cpplint with 61 rules; Docs and examples (every push / PR, scheduled): every documentation example is tested; changed output fails site built with warnings as errors; links checked regularly (scheduled); Integration, supply chain (every push / PR, scheduled): CMake 3.5, 3.31.6, and 4.0.0 Meson, Swift Package Manager dependency review on every PR Dependabot daily, OpenSSF Scorecard, R&#8203;EUSE. When they pass, the change is merged into develop; a release is made only when no vulnerability alert is open.</desc>
+<desc id="nj-qa-desc-w">Every push or pull request starts these checks in parallel: Build matrix (every push / PR): 50+ compilers: G&#8203;CC, Clang, M&#8203;SVC, AppleClang, Intel, NVIDIA, ... C++11, 14, 17, 20, 23, and 26 libc++ and libstdc++ warnings: Clang -Weverything, G&#8203;CC 300+ warnings; Unit tests (doctest) (every push / PR): every public A&#8203;PI function every exception id and message all Unicode code points single header and split headers custom number, string, array, and object types; Coverage (every push / PR): unit tests cover all lines of the code base; Static analysis (every push / PR, scheduled): Clang-Tidy, Cppcheck, Infer Clang Static Analyzer (52 checkers), I&#8203;WYU, Codacy CodeQL, Semgrep, Flawfinder (also scheduled); Dynamic analysis (every push / PR): runtime assertions Valgrind (Memcheck) address and undefined behavior sanitizers, integer overflow, nullability violations; Fuzzing (every PR, continuous): CIFuzz on every pull request OSS-Fuzz: billions of inputs every crash fixed with a reproducing unit test; Style (every push / PR): Artistic Style (astyle), enforced in the C&#8203;I cpplint with 61 rules; Docs and examples (every push / PR, scheduled): every documentation example is tested; changed output fails site built with warnings as errors; links checked regularly (scheduled); Integration, supply chain (every push / PR, scheduled): CMake 3.5, 3.31.6, and 4.0.0 Meson, Swift Package Manager dependency review on every PR Dependabot daily, OpenSSF Scorecard, R&#8203;EUSE. When they pass, the change is merged into develop; a release is made only when no vulnerability alert is open.</desc>
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 <text class="nj-exceptions-ctitle" x="40" y="135">Build matrix</text>
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@@ -37,218 +32,209 @@
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-<text class="nj-exceptions-line" x="40" y="1310">cpplint with 61 rules</text>
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-<text class="nj-exceptions-line" x="40" y="1470">as errors; links checked</text>
-<text class="nj-exceptions-line" x="40" y="1488">regularly (scheduled)</text>
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-<text class="nj-exceptions-stagetext" x="180" y="1746">merge into develop</text>
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-<text class="nj-exceptions-stagetext" x="180" y="1808">release</text>
-<text class="nj-exceptions-stagesub" x="180" y="1824">no open vulnerability alert</text>
+<line class="nj-exceptions-edge" x1="180" y1="1642" x2="180" y2="1668" marker-end="url(#nj-qa-arrow-n)"/>
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+<text class="nj-exceptions-stagetext" x="180" y="1754">release</text>
+<text class="nj-exceptions-stagesub" x="180" y="1770">no open vulnerability alert</text>
 </svg>
@@ -22,24 +22,19 @@ P = "nj-exceptions-"
 TRIGGERS = {
    "push": ("every push / PR", "push"),
    "pr": ("every PR", "push"),
-    "merge": ("before merge", "push"),
-    "nightly": ("nightly", "sched"),
    "sched": ("scheduled", "sched"),
    "cont": ("continuous", "cont"),
 }

 # title, triggers, lines (at most 31 characters, so they fit a card of the three-column drawing)
 LANES = [
-    ("Build matrix", ["push", "merge"], [
+    ("Build matrix", ["push"], [
        "50+ compilers: GCC, Clang, MSVC,",
        "AppleClang, Intel, NVIDIA, ...",
        "C++11, 14, 17, 20, 23, and 26",
        "libc++ and libstdc++",
        "warnings: Clang -Weverything,",
        "GCC 300+ warnings",
-        "a subset on every push and PR,",
-        "all before merge; Intel, NVIDIA,",
-        "CUDA, and ARM64 nightly",
    ]),
    ("Unit tests (doctest)", ["push"], [
        "every public API function",
@@ -49,7 +44,7 @@ LANES = [
        "custom number, string, array,",
        "and object types",
    ]),
-    ("Coverage", ["nightly"], [
+    ("Coverage", ["push"], [
        "unit tests cover all lines",
        "of the code base",
    ]),
@@ -58,11 +53,11 @@ LANES = [
        "Clang Static Analyzer (52",
        "checkers), IWYU, Codacy",
        "CodeQL, Semgrep, Flawfinder",
-        "(also scheduled); Infer nightly",
+        "(also scheduled)",
    ]),
-    ("Dynamic analysis", ["push", "nightly"], [
+    ("Dynamic analysis", ["push"], [
        "runtime assertions",
-        "Valgrind (Memcheck), nightly",
+        "Valgrind (Memcheck)",
        "address and undefined behavior",
        "sanitizers, integer overflow,",
        "nullability violations",
@@ -183,7 +178,7 @@ def drawing(W, cols, suffix):
    defs = ('<defs><marker id="%s" viewBox="0 0 10 10" refX="9" refY="5" markerWidth="7" markerHeight="7" orient="auto">'
            '<path class="fg-head" d="M0 1 L10 5 L0 9 z"/></marker></defs>' % mid)
    tid, did = "nj-qa-title-" + suffix, "nj-qa-desc-" + suffix
-    desc = ("A push or pull request starts these checks; the badges say when each runs: " +
+    desc = ("Every push or pull request starts these checks in parallel: " +
            "; ".join("%s (%s): %s" % (t, ", ".join(TRIGGERS[k][0] for k in trig), " ".join(lines)) for t, trig, lines in LANES) +
            ". When they pass, the change is merged into develop; a release is made only when no vulnerability alert is open.")
    out = ['<svg class="nj-fig %sqa %sqa--%s" viewBox="0 0 %d %d" role="img" aria-labelledby="%s %s" xmlns="http://www.w3.org/2000/svg">'
@@ -19,11 +19,6 @@
 #include <type_traits> // conditional


-// The shortest-digit conversion of doubles (see zmij.hpp) and the writing of
-// its digits, including the conversion of the digits to text by Xiang JunBo
-// and the SIMD instruction sequence by Dougall Johnson, are ported from Zmij
-// by Victor Zverovich (https://github.com/vitaut/zmij, MIT license).
-//
 // SSE2 (every x86-64 CPU) and NEON (every 64-bit Arm CPU) convert the 16
 // digits of a double at once (unless JSON_NO_SIMD selects the portable code)
 #if !defined(JSON_NO_SIMD) && (defined(__x86_64__) || (defined(_M_X64) && !defined(_M_ARM64EC)))
@@ -44,13 +44,6 @@
 // use std::from_chars or std::strtold. 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.
-//
-// The Eisel-Lemire conversion (eisel_lemire()), the digit comparison for the
-// cases it cannot decide, and the eight-digits-at-a-time helpers
-// (is_eight_digits(), parse_eight_digits()) are adapted from fast_float
-// (https://github.com/fastfloat/fast_float, Daniel Lemire and contributors,
-// available under the MIT, Apache 2.0, and Boost Software licenses; used here
-// under the MIT license). The table of powers of five is in pow5_table.hpp.

 NLOHMANN_JSON_NAMESPACE_BEGIN
 namespace detail
@@ -30,13 +30,6 @@
 // NLOHMANN_JSON_NO_TARGET_ATTRIBUTE (for compilers that ignore the target
 // attribute and then reject the SSSE3 intrinsics) keeps the check portable
 // without disabling the SSE2 code.
-//
-// The vector UTF-8 check (utf8_lookup4) is adapted from simdjson
-// (https://github.com/simdjson/simdjson, Daniel Lemire, Geoff Langdale, John
-// Keiser, and contributors, available under the Apache 2.0 and MIT licenses;
-// used here under the MIT license): the "lookup4" algorithm and tables of
-// J. Keiser and D. Lemire, "Validating UTF-8 In Less Than One Instruction Per
-// Byte" (2021).
 #if !defined(JSON_NO_SIMD) && defined(__aarch64__) && (defined(__GNUC__) || defined(__clang__)) && defined(__BYTE_ORDER__) && defined(__ORDER_LITTLE_ENDIAN__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
    #include <arm_neon.h>
    #define JSON_SCAN_NEON 1
@@ -1977,6 +1977,23 @@ class serializer
            return;
        }

+        // 17 to 20 digits: the first one to four, then twice eight
+        if (magnitude_fits_64_bits(abs_value, std::integral_constant<bool, magnitude_has_at_most_64_bits>()))
+        {
+            const auto value = static_cast<std::uint64_t>(abs_value);
+            const std::uint64_t top = value / 10000000000000000u; // 1 to 1844
+            const std::uint64_t low16 = value - (top * 10000000000000000u);
+            const std::uint64_t middle = low16 / 100000000u;
+            const std::uint64_t first = dtoa_impl::eight_digit_bytes(top);
+            const auto leading = static_cast<unsigned>(count_leading_zeros(first) / 8); // (first is not 0)
+            char* const p = buffer_ptr + n_chars;
+            dtoa_impl::store_msb_first(p, (first << (8 * leading)) + 0x3030303030303030u);
+            dtoa_impl::store_msb_first(p + 8 - leading, dtoa_impl::eight_digit_bytes(middle) + 0x3030303030303030u);
+            dtoa_impl::store_msb_first(p + 16 - leading, dtoa_impl::eight_digit_bytes(low16 - (middle * 100000000u)) + 0x3030303030303030u);
+            write_buffer_pos += n_chars + 24 - leading;
+            return;
+        }
+
        n_chars += count_digits(abs_value);

        // spare 1 byte for '\0'
@@ -2122,6 +2139,23 @@ class serializer
        }
    }

+    /// whether every number_magnitude_t fits 64 bits
+    static constexpr bool magnitude_has_at_most_64_bits = std::numeric_limits<number_magnitude_t>::is_specialized
+        && std::numeric_limits<number_magnitude_t>::digits <= 64;
+
+    /// whether @a x fits 64 bits: always if number_magnitude_t has at most
+    /// 64 bits (selected by type, as the comparison would be reported as
+    /// always true), else compared
+    static bool magnitude_fits_64_bits(const number_magnitude_t& /*unused*/, std::true_type /*unused*/) noexcept
+    {
+        return true;
+    }
+
+    static bool magnitude_fits_64_bits(const number_magnitude_t& x, std::false_type /*unused*/) noexcept
+    {
+        return x <= 18446744073709551615u;
+    }
+
    /*
     * Helper function for dump_integer
     *
@@ -26,7 +26,6 @@
 #include <nlohmann/detail/view/lookup.hpp>
 #include <nlohmann/detail/view/macro_scope.hpp>
 #include <nlohmann/detail/view/node.hpp>
-#include <nlohmann/detail/view/scan.hpp>
 #include <nlohmann/detail/view/view_mode.hpp>

 NLOHMANN_JSON_NAMESPACE_BEGIN
@@ -47,9 +46,10 @@ struct first_true<false, Conditions...> : std::integral_constant < int, 1 + firs
 /// (type_error.316 with the same message), so that an editable document
 /// only holds valid UTF-8: the error is at the first byte that no
 /// well-formed sequence can continue with (Unicode, Table 3-7).
-NLOHMANN_VIEW_ALWAYS_INLINE void check_utf8_bytewise(const unsigned char* p, std::size_t n, std::size_t i)
+inline void check_utf8(const char* s, std::size_t n)
 {
-    while (i < n)
+    const auto* const p = reinterpret_cast<const unsigned char*>(s); // NOLINT(cppcoreguidelines-pro-type-reinterpret-cast)
+    for (std::size_t i = 0; i < n;)
    {
        const unsigned char c = p[i];
        if (c < 0x80)
@@ -79,43 +79,6 @@ NLOHMANN_VIEW_ALWAYS_INLINE void check_utf8_bytewise(const unsigned char* p, std
    }
 }

-/// The long-string path of check_utf8(): skips well-formed runs with the
-/// parser's string scan (which stops at a quote, a backslash, or a control
-/// character, all legal here, and at ill-formed UTF-8); the byte-wise check
-/// runs only from where the scan found ill-formed UTF-8, to report it.
-NLOHMANN_VIEW_NOINLINE inline void check_utf8_scan(const unsigned char* p, std::size_t n)
-{
-    const unsigned char* const e = p + n;
-    const unsigned char* q = p;
-    for (;;)
-    {
-        q = scan_string_run<true>(q, e);
-        if (q == e)
-        {
-            return;
-        }
-        if (*q >= 0x80)
-        {
-            check_utf8_bytewise(p, n, static_cast<std::size_t>(q - p));
-            return; // not reached: the scan stopped at ill-formed UTF-8
-        }
-        ++q; // a quote, backslash, or control character
-    }
-}
-
-inline void check_utf8(const char* s, std::size_t n)
-{
-    const auto* const p = reinterpret_cast<const unsigned char*>(s); // NOLINT(cppcoreguidelines-pro-type-reinterpret-cast)
-    if (NLOHMANN_VIEW_UNLIKELY(n >= 32))
-    {
-        check_utf8_scan(p, n);
-        return;
-    }
-    // short strings: the vector scan costs more than it saves; (the loop is
-    // inlined with a constant start, so this path is the plain byte-wise check)
-    check_utf8_bytewise(p, n, 0);
-}
-
 /*!
@brief the edits of an editable basic_json_document

@@ -258,81 +258,6 @@ struct number_token
    bool is_float; ///< a fraction or an exponent
 };

-/// advance over ASCII digits, eight bytes at a time
-inline const unsigned char* digit_run(const unsigned char* p, const unsigned char* e) noexcept
-{
-    constexpr std::uint64_t ones = 0x0101010101010101ull;
-    while (e - p >= 8)
-    {
-        // (the digits become 0..9; a byte above 9, or with bit 7 set, is no digit. A carry
-        // out of a byte with bit 7 set only affects the bytes above, after the first one
-        // that count_trailing_zeros finds.)
-        const std::uint64_t x = read_eight_bytes(p) ^ (ones * 0x30u);
-        const std::uint64_t not_digit = ((x + (ones * 0x76u)) | x) & (ones * 0x80u);
-        if (not_digit != 0)
-        {
-            return p + (static_cast<std::size_t>(count_trailing_zeros(not_digit)) / 8);
-        }
-        p += 8;
-    }
-    while (p != e && is_digit(*p))
-    {
-        ++p;
-    }
-    return p;
-}
-
-/// whether the n bytes at p are ASCII digits (n > 0)
-inline bool all_digits(const unsigned char* p, std::size_t n) noexcept
-{
-    const auto digits = [](const unsigned char* q)
-    {
-        constexpr std::uint64_t ones = 0x0101010101010101ull;
-        const std::uint64_t x = read_eight_bytes(q) ^ (ones * 0x30u);
-        return (((x + (ones * 0x76u)) | x) & (ones * 0x80u)) == 0;
-    };
-    if (n >= 8)
-    {
-        for (std::size_t i = 0; i + 8 < n; i += 8)
-        {
-            if (!digits(p + i))
-            {
-                return false;
-            }
-        }
-        return digits(p + n - 8); // (overlapping the bytes before: they are digits)
-    }
-    for (std::size_t i = 0; i < n; ++i)
-    {
-        if (!is_digit(p[i]))
-        {
-            return false;
-        }
-    }
-    return true;
-}
-
-/// Whether a float token has the shape that the parser records for most of
-/// them: [-]digits.digits, with the numbers of digits of the node's layout
-/// (extra). Then the token is a number of that layout, and the general scan
-/// that follows is not needed.
-inline bool plain_float_token(const unsigned char* s, std::size_t len, std::uint16_t extra) noexcept
-{
-    const std::size_t int_digits = extra & 0xFFu;
-    const std::size_t frac_digits = extra >> 8u;
-    if (int_digits == 0 || int_digits >= 255 || frac_digits == 0 || frac_digits >= 255 || len == 0)
-    {
-        return false;
-    }
-    const std::size_t negative = *s == '-' ? 1 : 0;
-    if (len != negative + int_digits + 1 + frac_digits)
-    {
-        return false;
-    }
-    const unsigned char* const p = s + negative;
-    return !(int_digits > 1 && *p == '0') && p[int_digits] == '.' && all_digits(p, int_digits) && all_digits(p + int_digits + 1, frac_digits);
-}
-
 /// whether [s, s + len) is a JSON number (the grammar the parser accepts)
 inline bool scan_number_token(const unsigned char* s, std::size_t len, number_token& t)
 {
@@ -351,7 +276,11 @@ inline bool scan_number_token(const unsigned char* s, std::size_t len, number_to
    }
    else if (*p >= '1' && *p <= '9')
    {
-        p = digit_run(p + 1, e);
+        do
+        {
+            ++p;
+        }
+        while (p != e && is_digit(*p));
    }
    else
    {
@@ -363,7 +292,10 @@ inline bool scan_number_token(const unsigned char* s, std::size_t len, number_to
    if (p != e && *p == '.')
    {
        const unsigned char* const f0 = ++p;
-        p = digit_run(p, e);
+        while (p != e && is_digit(*p))
+        {
+            ++p;
+        }
        if (p == f0)
        {
            return false;
@@ -474,15 +406,10 @@ struct float_range
 template<typename Check>
 bool check_distinct_ranges(std::vector<byte_range>& ranges, Check check)
 {
-    // (save() writes the ranges in the order of the nodes, which is sorted already)
-    const auto before = [](const byte_range & a, const byte_range & b)
+    std::sort(ranges.begin(), ranges.end(), [](const byte_range & a, const byte_range & b)
    {
        return a.off != b.off ? a.off < b.off : a.len < b.len;
-    };
-    if (!std::is_sorted(ranges.begin(), ranges.end(), before))
-    {
-        std::sort(ranges.begin(), ranges.end(), before);
-    }
+    });
    std::size_t end = 0;
    for (std::size_t i = 0; i < ranges.size(); ++i)
    {
@@ -504,8 +431,7 @@ bool check_distinct_ranges(std::vector<byte_range>& ranges, Check check)
 /// record layouts that match it), tokens must not overlap.
 inline bool check_float_ranges(std::vector<float_range>& ranges, const unsigned char* text)
 {
-    // (save() writes the tokens in the order of the nodes, which is sorted already)
-    const auto before = [](const float_range & a, const float_range & b)
+    std::sort(ranges.begin(), ranges.end(), [](const float_range & a, const float_range & b)
    {
        if (a.off != b.off)
        {
@@ -516,11 +442,7 @@ inline bool check_float_ranges(std::vector<float_range>& ranges, const unsigned
            return a.len < b.len;
        }
        return a.extra < b.extra;
-    };
-    if (!std::is_sorted(ranges.begin(), ranges.end(), before))
-    {
-        std::sort(ranges.begin(), ranges.end(), before);
-    }
+    });
    std::size_t end = 0;
    std::size_t i = 0;
    while (i < ranges.size())
@@ -530,18 +452,14 @@ inline bool check_float_ranges(std::vector<float_range>& ranges, const unsigned
        {
            return false;
        }
+        number_token t{};
        const unsigned char* const s = text + r.off;
-        std::uint16_t layout = r.extra;
-        if (!plain_float_token(s, r.len, r.extra))
+        if (!scan_number_token(s, r.len, t) || !float_token_finite(s, r.len, t))
        {
-            number_token t{};
-            if (!scan_number_token(s, r.len, t) || !float_token_finite(s, r.len, t))
-            {
-                return false;
-            }
-            // the digit layout the parser records (or "many", as compaction writes it)
-            layout = float_layout(t);
+            return false;
        }
+        // the digit layout the parser records (or "many", as compaction writes it)
+        const std::uint16_t layout = float_layout(t);
        for (; i < ranges.size() && ranges[i].off == r.off && ranges[i].len == r.len; ++i)
        {
            if (ranges[i].extra != layout && ranges[i].extra != 0xFFFFu)
@@ -29,13 +29,6 @@
 // NLOHMANN_VIEW_NO_TARGET_ATTRIBUTE (set by the GCC module interface, where GCC
 // ignores the target attribute and then rejects the SSSE3 intrinsics) keeps the
 // check portable without disabling the SSE2 code.
-//
-// The vector UTF-8 check (utf8_lookup4) is adapted from simdjson
-// (https://github.com/simdjson/simdjson, Daniel Lemire, Geoff Langdale, John
-// Keiser, and contributors, available under the Apache 2.0 and MIT licenses;
-// used here under the MIT license): the "lookup4" algorithm and tables of
-// J. Keiser and D. Lemire, "Validating UTF-8 In Less Than One Instruction Per
-// Byte" (2021).
 #if !defined(JSON_NO_SIMD) && defined(__aarch64__) && (defined(__GNUC__) || defined(__clang__)) && NLOHMANN_VIEW_LITTLE_ENDIAN
    #include <arm_neon.h>
    #define NLOHMANN_VIEW_NEON 1
@@ -763,12 +763,8 @@ class basic_json_view
    template<typename, view_mode> friend class basic_json_document;
    template<typename, view_mode> friend class basic_json_view;
    template<typename, typename> friend class detail::view::editor;
-    template<typename, typename> friend class detail::view::view_side;
    friend iterator;

-    /// whether the view is one of an editable document
-    static constexpr bool is_editable = Editable;
-
    basic_json_view(const document_data* d, const node* n) noexcept
        : m_doc(d), m_node(n)
    {}
@@ -10970,13 +10970,6 @@ NLOHMANN_JSON_NAMESPACE_END
 // use std::from_chars or std::strtold. 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.
-//
-// The Eisel-Lemire conversion (eisel_lemire()), the digit comparison for the
-// cases it cannot decide, and the eight-digits-at-a-time helpers
-// (is_eight_digits(), parse_eight_digits()) are adapted from fast_float
-// (https://github.com/fastfloat/fast_float, Daniel Lemire and contributors,
-// available under the MIT, Apache 2.0, and Boost Software licenses; used here
-// under the MIT license). The table of powers of five is in pow5_table.hpp.

 NLOHMANN_JSON_NAMESPACE_BEGIN
 namespace detail
@@ -12085,13 +12078,6 @@ NLOHMANN_JSON_NAMESPACE_END
 // NLOHMANN_JSON_NO_TARGET_ATTRIBUTE (for compilers that ignore the target
 // attribute and then reject the SSSE3 intrinsics) keeps the check portable
 // without disabling the SSE2 code.
-//
-// The vector UTF-8 check (utf8_lookup4) is adapted from simdjson
-// (https://github.com/simdjson/simdjson, Daniel Lemire, Geoff Langdale, John
-// Keiser, and contributors, available under the Apache 2.0 and MIT licenses;
-// used here under the MIT license): the "lookup4" algorithm and tables of
-// J. Keiser and D. Lemire, "Validating UTF-8 In Less Than One Instruction Per
-// Byte" (2021).
 #if !defined(JSON_NO_SIMD) && defined(__aarch64__) && (defined(__GNUC__) || defined(__clang__)) && defined(__BYTE_ORDER__) && defined(__ORDER_LITTLE_ENDIAN__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
    #include <arm_neon.h>
    #define JSON_SCAN_NEON 1
@@ -32509,11 +32495,6 @@ NLOHMANN_JSON_NAMESPACE_END
 #include <type_traits> // conditional


-// The shortest-digit conversion of doubles (see zmij.hpp) and the writing of
-// its digits, including the conversion of the digits to text by Xiang JunBo
-// and the SIMD instruction sequence by Dougall Johnson, are ported from Zmij
-// by Victor Zverovich (https://github.com/vitaut/zmij, MIT license).
-//
 // SSE2 (every x86-64 CPU) and NEON (every 64-bit Arm CPU) convert the 16
 // digits of a double at once (unless JSON_NO_SIMD selects the portable code)
 #if !defined(JSON_NO_SIMD) && (defined(__x86_64__) || (defined(_M_X64) && !defined(_M_ARM64EC)))
@@ -36224,6 +36205,23 @@ class serializer
            return;
        }

+        // 17 to 20 digits: the first one to four, then twice eight
+        if (magnitude_fits_64_bits(abs_value, std::integral_constant<bool, magnitude_has_at_most_64_bits>()))
+        {
+            const auto value = static_cast<std::uint64_t>(abs_value);
+            const std::uint64_t top = value / 10000000000000000u; // 1 to 1844
+            const std::uint64_t low16 = value - (top * 10000000000000000u);
+            const std::uint64_t middle = low16 / 100000000u;
+            const std::uint64_t first = dtoa_impl::eight_digit_bytes(top);
+            const auto leading = static_cast<unsigned>(count_leading_zeros(first) / 8); // (first is not 0)
+            char* const p = buffer_ptr + n_chars;
+            dtoa_impl::store_msb_first(p, (first << (8 * leading)) + 0x3030303030303030u);
+            dtoa_impl::store_msb_first(p + 8 - leading, dtoa_impl::eight_digit_bytes(middle) + 0x3030303030303030u);
+            dtoa_impl::store_msb_first(p + 16 - leading, dtoa_impl::eight_digit_bytes(low16 - (middle * 100000000u)) + 0x3030303030303030u);
+            write_buffer_pos += n_chars + 24 - leading;
+            return;
+        }
+
        n_chars += count_digits(abs_value);

        // spare 1 byte for '\0'
@@ -36369,6 +36367,23 @@ class serializer
        }
    }

+    /// whether every number_magnitude_t fits 64 bits
+    static constexpr bool magnitude_has_at_most_64_bits = std::numeric_limits<number_magnitude_t>::is_specialized
+        && std::numeric_limits<number_magnitude_t>::digits <= 64;
+
+    /// whether @a x fits 64 bits: always if number_magnitude_t has at most
+    /// 64 bits (selected by type, as the comparison would be reported as
+    /// always true), else compared
+    static bool magnitude_fits_64_bits(const number_magnitude_t& /*unused*/, std::true_type /*unused*/) noexcept
+    {
+        return true;
+    }
+
+    static bool magnitude_fits_64_bits(const number_magnitude_t& x, std::false_type /*unused*/) noexcept
+    {
+        return x <= 18446744073709551615u;
+    }
+
    /*
     * Helper function for dump_integer
     *
@@ -21,10 +21,6 @@ python3 tests/benchmarks/json_view/compare.py --data <json_test_data directory>
 - The other libraries come from the system: pkg-config, or Homebrew (`brew install yyjson simdjson boost`). With
  `--download`, pinned releases are downloaded instead and checked against their SHA-256. Without Boost headers (or
  with `--no-boost`), the Boost.JSON columns are skipped, and the results say so.
- `--aligned` additionally builds and runs everything with all functions aligned to 64 bytes (`-mllvm
-  -align-all-functions=6` for Clang, `-falign-functions=64 -falign-loops=64` for GCC), and reports both result
-  tables as "default build" and "aligned build". Code layout alone can move a result by a few percent; a difference
-  that appears in only one of the two tables is a layout artifact. Off by default, which doubles the run time.
 - `--corpus file...` adds files to the corpus benchmark, e.g. those of
  [simdjson-data](https://github.com/simdjson/simdjson-data) or the
  [yyjson benchmark](https://github.com/ibireme/yyjson_benchmark).
@@ -43,7 +39,7 @@ where `json_view` stands on another architecture; they are not meant for publica

 ## What is measured

-`bench_view.cpp` runs these workloads on twitter, citm_catalog, canada, jeopardy, a single tweet (`status`), and a
+`bench_view.cpp` runs four workloads on twitter, citm_catalog, canada, jeopardy, a single tweet (`status`), and a
 JSON-RPC request (`rpc`):

 | workload | what it does |
@@ -52,7 +48,6 @@ JSON-RPC request (`rpc`):
 | traverse | parse, then visit every value, convert every number, touch every string and key |
 | select | parse, then read a few fields per record (e.g. id, user name, and retweet count of each tweet) |
 | dump | serialize a parsed document (compact) |
-| parse+dump | build a fresh document, then serialize it (compact), in one timed call |

 `bench_corpus.cpp` runs parse, traverse, and dump on any list of files, so that no library is tuned to a handful of
 documents. Its dump also writes the numbers as they are in the input: `json_view` with `number_format::source`, and
@@ -77,32 +72,11 @@ call follows an untimed call of the same engine: otherwise the engine after `jso
 cleaning up the tens of thousands of nodes `json::parse` just freed (with glibc, this made `json_view` look 1.7 times
 slower on citm_catalog traverse).

-`json_view` is an index into the source text, not a tree of owning nodes. Its like-for-like peers are yyjson and
-simdjson DOM (immutable, indexed, no per-node allocation). Boost.JSON and `json::parse` build mutable, owning DOMs and
-are reference points for what that costs, not equals; simdjson On-Demand is lazy and forward-only, so it is the other
-way round: it has no random access to pay for. All engines validate UTF-8 and syntax by default.
-
-Number conversion differs: `json_view` converts integers while parsing but converts floating-point numbers lazily,
-when they are read or dumped; yyjson (default flags) and simdjson DOM convert every number while parsing. The cost of
-float conversion therefore appears in the traverse and dump rows for `json_view`, and in the parse row for the others.
-For float-heavy documents (canada), the fair reading is a sum of parse and use: the `traverse` workload already
-includes the parse, and `parse+dump` measures a fresh document and its dump in one timed call; the `dump` row alone
-leaves the conversion in `json_view` and out of the others. Eager conversion at parse time was prototyped as an opt-in
-and measured: canada traverse (with its parse) was 4-7 % faster, but parse+dump 11-30 % slower and parse 36-90 % slower. It was
-dropped, so lazy conversion is the only mode.
-
-`json_view` can also be edited: `json_editable_document` has the same read API, and the `(editable)` rows in
-`bench_view` measure it on the same workloads. They are the fair counterpart of Boost.JSON and `json::parse`, which are
-mutable too; the plain `json_view` rows are the counterpart of yyjson and simdjson DOM, which are not. `bench_edit` adds
-the read-modify-write workloads. Read the tables with that in mind: an immutable-only library is not compared with an
-editable `json_view` unless it says so.
-
 The engines do not all offer the same features, which the numbers should be read with:

 | engine | document | random access | editable | notes |
 |---|---|---|---|---|
 | `json_view` | immutable index into the text | yes | no | a fresh document per parse; "reused" parses into the same document |
-| `json_view` (editable) | index into the text plus edits | yes | yes, in place | `json_editable_document`; keeps member order and number spellings |
 | yyjson | immutable (`yyjson_read`) | yes | via a mutable copy | |
 | simdjson DOM | immutable, parser reused | yes | no | "fresh" uses a new parser per parse |
 | simdjson On-Demand | none: forward-only, lazy | no | no | only traverse and select |
@@ -8,9 +8,8 @@

 // Same-feature-set benchmark: read-only JSON documents with random access.
 //
-//   json_view      nlohmann/json_view.hpp (fresh document per parse / reused;
-//                  "(editable)": json_editable_document, same read API)
-//   yyjson        yyjson_read(): immutable document, random access
+//   json_view      nlohmann/json_view.hpp (fresh document per parse / reused)
+//   yyjson         yyjson_read(): immutable document, random access
 //   simdjson DOM   dom::parser (reused, as recommended; "fresh": a new parser
 //                  per parse): immutable, random access
 // references (different feature sets):
@@ -20,11 +19,7 @@
 //
 // Workloads: parse (build + free), traverse (visit everything, convert every
 // number, touch every string and key), select (a few fields per document),
-// dump (compact serialization of the parsed document), and parse+dump (a fresh
-// document, then its dump, in one timed call). json_view converts floating-point
-// numbers lazily (when read or dumped), yyjson and simdjson DOM while parsing:
-// for float-heavy documents, traverse (which includes the parse) and parse+dump
-// are the fair reading of the parse and dump rows.
+// dump (compact serialization of the parsed document).
 // All engines run interleaved in every round, each timed call after an untimed
 // one of the same engine; the best round is reported.
 #include <nlohmann/json_view.hpp>
@@ -48,8 +43,6 @@

 using nlohmann::json;
 using nlohmann::json_document;
-using nlohmann::json_editable_document;
-using nlohmann::json_editable_view;
 using nlohmann::json_view;

 static volatile double g_sink;
@@ -62,8 +55,7 @@ struct stats

 // ---------------- traversal ----------------

-template<class V>
-static void walk_view(V v, stats& st)
+static void walk(json_view v, stats& st)
 {
    ++st.nodes;
    switch (v.type())
@@ -72,42 +64,32 @@ static void walk_view(V v, stats& st)
            for (auto it = v.begin(); it != v.end(); ++it)
            {
                st.str += it.key().size();
-                walk_view<V>(*it, st);
+                walk(*it, st);
            }
            break;
        case json::value_t::array:
-            for (const V e : v)
+            for (const json_view e : v)
            {
-                walk_view<V>(e, st);
+                walk(e, st);
            }
            break;
        case json::value_t::string:
            st.str += v.get_string().size();
            break;
        case json::value_t::number_integer:
-            st.num += static_cast<double>(v.template get<std::int64_t>());
+            st.num += static_cast<double>(v.get<std::int64_t>());
            break;
        case json::value_t::number_unsigned:
-            st.num += static_cast<double>(v.template get<std::uint64_t>());
+            st.num += static_cast<double>(v.get<std::uint64_t>());
            break;
        case json::value_t::number_float:
-            st.num += v.template get<double>();
+            st.num += v.get<double>();
            break;
        default:
            break;
    }
 }

-static void walk(json_view v, stats& st)
-{
-    walk_view<json_view>(v, st);
-}
-
-static void walk(json_editable_view v, stats& st)
-{
-    walk_view<json_editable_view>(v, st);
-}
-
 static void walk(const json& j, stats& st)
 {
    ++st.nodes;
@@ -318,21 +300,20 @@ static void walk(const boost::json::value& v, stats& st)
 // status (one tweet): id, user.screen_name, retweet_count
 // rpc: method, params.minuend, id

-template<class V>
-static double pick_view(const std::string& name, V r)
+static double pick(const std::string& name, json_view r)
 {
    double acc = 0;
    if (name == "twitter" || name == "status")
    {
-        auto one = [&](V s)
+        auto one = [&](json_view s)
        {
-            acc += static_cast<double>(s["id"].template get<std::uint64_t>());
+            acc += static_cast<double>(s["id"].get<std::uint64_t>());
            acc += static_cast<double>(s["user"]["screen_name"].get_string().size());
-            acc += static_cast<double>(s["retweet_count"].template get<std::int64_t>());
+            acc += static_cast<double>(s["retweet_count"].get<std::int64_t>());
        };
        if (name == "twitter")
        {
-            for (const V s : r["statuses"])
+            for (const json_view s : r["statuses"])
            {
                one(s);
            }
@@ -344,20 +325,20 @@ static double pick_view(const std::string& name, V r)
    }
    else if (name == "citm_catalog")
    {
-        for (const V p : r["performances"])
+        for (const json_view p : r["performances"])
        {
-            acc += static_cast<double>(p["id"].template get<std::uint64_t>() + p["eventId"].template get<std::uint64_t>() + p["seatCategories"].size());
+            acc += static_cast<double>(p["id"].get<std::uint64_t>() + p["eventId"].get<std::uint64_t>() + p["seatCategories"].size());
        }
        acc += static_cast<double>(r["events"].size());
    }
    else if (name == "canada")
    {
-        const V g = r["features"][0]["geometry"];
+        const json_view g = r["features"][0]["geometry"];
        acc += static_cast<double>(r["type"].get_string().size() + g["type"].get_string().size() + g["coordinates"].size());
    }
    else if (name == "jeopardy")
    {
-        for (const V q : r)
+        for (const json_view q : r)
        {
            acc += q["round"].get_string() == "Final Jeopardy!" ? 1 : 0;
            acc += static_cast<double>(q["category"].get_string().size());
@@ -366,21 +347,11 @@ static double pick_view(const std::string& name, V r)
    else if (name == "rpc")
    {
        acc += static_cast<double>(r["method"].get_string().size());
-        acc += static_cast<double>(r["params"]["minuend"].template get<std::int64_t>() + r["id"].template get<std::int64_t>());
+        acc += static_cast<double>(r["params"]["minuend"].get<std::int64_t>() + r["id"].get<std::int64_t>());
    }
    return acc;
 }

-static double pick(const std::string& name, json_view r)
-{
-    return pick_view<json_view>(name, r);
-}
-
-static double pick(const std::string& name, json_editable_view r)
-{
-    return pick_view<json_editable_view>(name, r);
-}
-
 static double pick(const std::string& name, const json& r)
 {
    double acc = 0;
@@ -663,35 +634,15 @@ int main(int argc, char** argv)
        walk(json::parse(dc.text), a);
        auto d = json_document::parse(dc.text);
        walk(d.root(), b);
-        auto ed = json_editable_document::parse(dc.text);
-        stats e;
-        walk(ed.root(), e);
        yyjson_doc* y = yyjson_read(dc.text.data(), dc.text.size(), 0);
        walk(yyjson_doc_get_root(y), c);
        simdjson::dom::parser p;
        walk(p.parse(dc.text).value(), dd);
-        const bool ok = a.nodes == b.nodes && a.nodes == e.nodes && a.str == e.str && std::fabs(a.num - e.num) <= 1e-9 * std::fabs(a.num) && a.nodes == c.nodes && a.nodes == dd.nodes && a.str == b.str && a.str == c.str && a.str == dd.str
+        const bool ok = a.nodes == b.nodes && a.nodes == c.nodes && a.nodes == dd.nodes && a.str == b.str && a.str == c.str && a.str == dd.str
                        && std::fabs(a.num - b.num) <= 1e-9 * std::fabs(a.num) && std::fabs(a.num - c.num) <= 1e-9 * std::fabs(a.num);
-        const double pa = pick(dc.name, json::parse(dc.text)), pb = pick(dc.name, d.root()), pe = pick(dc.name, ed.root()), pc = pick(dc.name, yyjson_doc_get_root(y)), pd = pick(dc.name, p.parse(dc.text).value());
-        std::printf("check %-13s traverse %s select %s\n", dc.name.c_str(), ok ? "OK" : "MISMATCH", (pa == pb && pa == pe && pa == pc && pa == pd) ? "OK" : "MISMATCH");
+        const double pa = pick(dc.name, json::parse(dc.text)), pb = pick(dc.name, d.root()), pc = pick(dc.name, yyjson_doc_get_root(y)), pd = pick(dc.name, p.parse(dc.text).value());
+        std::printf("check %-13s traverse %s select %s\n", dc.name.c_str(), ok ? "OK" : "MISMATCH", (pa == pb && pa == pc && pa == pd) ? "OK" : "MISMATCH");
        yyjson_doc_free(y);
-
-        // the dumps of the engines may format floats differently, so only: every dump is non-empty, and the
-        // dump of json_view (also editable) and of json::parse parse back to the same number of nodes
-        const std::string dj = json::parse(dc.text).dump();
-        const std::string dv = d.root().dump();
-        const std::string de = ed.root().dump();
-        std::size_t yn = 0;
-        yyjson_doc* y2 = yyjson_read(dc.text.data(), dc.text.size(), 0);
-        char* yo = yyjson_write(y2, 0, &yn);
-        const bool dumps_ok = !dj.empty() && !dv.empty() && !de.empty() && yo != nullptr && yn > 0 && !simdjson::to_string(p.parse(dc.text).value()).empty();
-        std::free(yo);
-        yyjson_doc_free(y2);
-        stats sj_nodes, sv_nodes, se_nodes;
-        walk(json::parse(dj), sj_nodes);
-        walk(json::parse(dv), sv_nodes);
-        walk(json::parse(de), se_nodes);
-        std::printf("check %-13s dump %s\n", dc.name.c_str(), (dumps_ok && sj_nodes.nodes == a.nodes && sv_nodes.nodes == a.nodes && se_nodes.nodes == a.nodes) ? "OK" : "MISMATCH");
    }

    std::FILE* csv = std::fopen("bench_view.csv", "w");
@@ -718,7 +669,6 @@ int main(int argc, char** argv)
        workloads.push_back({"parse", {
                {"json_view", [&] { auto d = json_document::parse(s); g_sink = static_cast<double>(d.node_count()); }},
                {"json_view (reused)", [&] { reused.read(s); g_sink = static_cast<double>(reused.node_count()); }},
-                {"json_view (editable)", [&] { auto d = json_editable_document::parse(s); g_sink = static_cast<double>(d.root().size()); }},
                {"yyjson", [&] { yyjson_doc* d = yyjson_read(s.data(), s.size(), 0); g_sink = static_cast<double>(yyjson_doc_get_val_count(d)); yyjson_doc_free(d); }},
                {"simdjson DOM", [&] { auto e = sj.parse(ps).value_unsafe(); g_sink = e.is_object(); }},
                {"simdjson DOM (fresh)", [&] { simdjson::dom::parser p; auto e = p.parse(ps).value_unsafe(); g_sink = e.is_object(); }},
@@ -730,7 +680,6 @@ int main(int argc, char** argv)
        workloads.push_back({"traverse", {
                {"json_view", [&] { auto d = json_document::parse(s); stats st; walk(d.root(), st); g_sink = st.num; }},
                {"json_view (reused)", [&] { reused.read(s); stats st; walk(reused.root(), st); g_sink = st.num; }},
-                {"json_view (editable)", [&] { auto d = json_editable_document::parse(s); stats st; walk(d.root(), st); g_sink = st.num; }},
                {"yyjson", [&] { yyjson_doc* d = yyjson_read(s.data(), s.size(), 0); stats st; walk(yyjson_doc_get_root(d), st); g_sink = st.num; yyjson_doc_free(d); }},
                {"simdjson DOM", [&] { stats st; walk(sj.parse(ps).value_unsafe(), st); g_sink = st.num; }},
                {"simdjson OD", [&] { auto d = od.iterate(ps).value_unsafe(); stats st; walk_od(d.get_value().value_unsafe(), st); g_sink = st.num; }},
@@ -742,31 +691,15 @@ int main(int argc, char** argv)
        workloads.push_back({"select", {
                {"json_view", [&] { auto d = json_document::parse(s); g_sink = pick(name, d.root()); }},
                {"json_view (reused)", [&] { reused.read(s); g_sink = pick(name, reused.root()); }},
-                {"json_view (editable)", [&] { auto d = json_editable_document::parse(s); g_sink = pick(name, d.root()); }},
                {"yyjson", [&] { yyjson_doc* d = yyjson_read(s.data(), s.size(), 0); g_sink = pick(name, yyjson_doc_get_root(d)); yyjson_doc_free(d); }},
                {"simdjson DOM", [&] { g_sink = pick(name, sj.parse(ps).value_unsafe()); }},
                {"simdjson OD", [&] { auto d = od.iterate(ps).value_unsafe(); g_sink = pick_od(name, d); }},
                {"json::parse", [&] { json j = json::parse(s); g_sink = pick(name, j); }},
            }});
-        // pipeline: a fresh document, then a dump of it, in one timed call
-        // (simdjson DOM reuses its parser, as in the parse row); the traverse
-        // workload above is already parse+traverse
-        workloads.push_back({"parse+dump", {
-                {"json_view", [&] { auto d = json_document::parse(s); std::string o = d.root().dump(); g_sink = static_cast<double>(o.size()); }},
-                {"json_view (editable)", [&] { auto d = json_editable_document::parse(s); std::string o = d.root().dump(); g_sink = static_cast<double>(o.size()); }},
-                {"yyjson", [&] { yyjson_doc* d = yyjson_read(s.data(), s.size(), 0); std::size_t n = 0; char* o = yyjson_write(d, 0, &n); g_sink = static_cast<double>(n); std::free(o); yyjson_doc_free(d); }},
-                {"simdjson DOM", [&] { std::string o = simdjson::to_string(sj.parse(ps).value_unsafe()); g_sink = static_cast<double>(o.size()); }},
-#if JSON_VIEW_BENCH_BOOST
-                {"Boost.JSON", [&] { boost::json::monotonic_resource mr; auto v = boost::json::parse(s, &mr); std::string o = boost::json::serialize(v); g_sink = static_cast<double>(o.size()); }},
-#endif
-                {"json::parse", [&] { json j = json::parse(s); std::string o = j.dump(); g_sink = static_cast<double>(o.size()); }},
-            }});
        {
            // serialization of an already parsed document
            static json_document vd;
            vd.read(s);
-            static json_editable_document ed = json_editable_document::parse(s);
-            ed = json_editable_document::parse(s);
            static yyjson_doc* yd = nullptr;
            if (yd)
            {
@@ -780,7 +713,6 @@ int main(int argc, char** argv)
            jd = json::parse(s);
            workloads.push_back({"dump", {
                    {"json_view", [&] { std::string o = vd.root().dump(); g_sink = static_cast<double>(o.size()); }},
-                    {"json_view (editable)", [&] { std::string o = ed.root().dump(); g_sink = static_cast<double>(o.size()); }},
                    {"yyjson", [&] { std::size_t n = 0; char* o = yyjson_write(yd, 0, &n); g_sink = static_cast<double>(n); std::free(o); }},
                    {"simdjson DOM", [&] { std::string o = simdjson::to_string(se); g_sink = static_cast<double>(o.size()); }},
                    {"json::parse", [&] { std::string o = jd.dump(); g_sink = static_cast<double>(o.size()); }},
@@ -808,7 +740,7 @@ int main(int argc, char** argv)
                }
            }
            const double ref = best[0];
-            std::printf("%-13s %-14s", dc.name.c_str(), wl.first.c_str());
+            std::printf("%-13s %-9s", dc.name.c_str(), wl.first.c_str());
            for (std::size_t k = 0; k < wl.second.size(); ++k)
            {
                const double us = best[k] / 1e3;
@@ -239,8 +239,6 @@ def main():
    ap.add_argument('--download', action='store_true', help='use pinned downloads instead of system libraries')
    ap.add_argument('--no-boost', action='store_true', help='skip Boost.JSON')
    ap.add_argument('--native', action='store_true', help='compile for this CPU (-march=native / -mcpu=native)')
-    ap.add_argument('--aligned', action='store_true',
-                    help='also build and run with all functions (and loops) aligned, to make code layout artifacts visible')
    ap.add_argument('--rounds', type=int, default=30, help='rounds of bench_view (default: 30)')
    ap.add_argument('--corpus', nargs='*', default=[], help='more files for bench_corpus')
    ap.add_argument('--build-dir', default=os.path.join(HERE, 'build'), help='where to build (default: build/ next to this script)')
@@ -284,46 +282,32 @@ def main():
                + ['-I' + d for d in lib.include])
            objects.append(obj)

-    cxx_version = output(cxx + ['--version'])
-    is_clang = 'clang' in cxx_version.lower()
-    # alignment flags: functions and (gcc) loops on 64-byte boundaries
-    align_flags = ['-mllvm', '-align-all-functions=6'] if is_clang else ['-falign-functions=64', '-falign-loops=64']
-
-    # the builds: the default one and, with --aligned, one with aligned code
-    variants = [('default build', args.build_dir, [])]
-    if args.aligned:
-        variants.append(('aligned build', os.path.join(args.build_dir, 'aligned'), align_flags))
+    binaries = {}
+    for bench in ['bench_view', 'bench_corpus', 'bench_edit', 'bench_decode']:
+        exe = os.path.join(args.build_dir, bench)
+        run(cxx + flags + include + [os.path.join(HERE, bench + '.cpp')] + objects + link + ['-o', exe])
+        binaries[bench] = exe

+    # run: bench_view on its documents, bench_corpus on those and the given files
    corpus = [os.path.join(args.data, f) for f in DEFAULT_CORPUS] + args.corpus
-    # label -> {benchmark: output}
-    all_outputs = {}
-    for label, build_dir, extra in variants:
-        os.makedirs(build_dir, exist_ok=True)
-        binaries = {}
-        for bench in ['bench_view', 'bench_corpus', 'bench_edit', 'bench_decode']:
-            exe = os.path.join(build_dir, bench)
-            run(cxx + flags + extra + include + [os.path.join(HERE, bench + '.cpp')] + objects + link + ['-o', exe])
-            binaries[bench] = exe
-
-        # run: bench_view on its documents, bench_corpus on those and the given files
-        outputs = {}
-        outputs['bench_view'] = run([binaries['bench_view'], args.data, str(args.rounds)], cwd=build_dir,
-                                    capture_output=True, text=True).stdout
-        outputs['bench_corpus'] = run([binaries['bench_corpus']] + corpus, cwd=build_dir,
-                                      capture_output=True, text=True).stdout
-        outputs['bench_edit'] = run([binaries['bench_edit'], args.data, str(max(1, args.rounds // 2))], cwd=build_dir,
-                                    capture_output=True, text=True).stdout
-        outputs['bench_decode'] = run([binaries['bench_decode'], args.data, str(max(1, args.rounds // 2))],
-                                      cwd=build_dir, capture_output=True, text=True).stdout
-        for name, text in outputs.items():
-            print(text)
-        all_outputs[label] = outputs
+    outputs = {}
+    outputs['bench_view'] = run([binaries['bench_view'], args.data, str(args.rounds)], cwd=args.build_dir,
+                                capture_output=True, text=True).stdout
+    outputs['bench_corpus'] = run([binaries['bench_corpus']] + corpus, cwd=args.build_dir,
+                                  capture_output=True, text=True).stdout
+    outputs['bench_edit'] = run([binaries['bench_edit'], args.data, str(max(1, args.rounds // 2))], cwd=args.build_dir,
+                                capture_output=True, text=True).stdout
+    outputs['bench_decode'] = run([binaries['bench_decode'], args.data, str(max(1, args.rounds // 2))], cwd=args.build_dir,
+                                  capture_output=True, text=True).stdout
+    for name, text in outputs.items():
+        print(text)

    # results with their metadata
    now = datetime.datetime.now()
    host = re.sub(r'[^A-Za-z0-9-]+', '-', platform.node().split('.')[0]) or 'host'
    stem = os.path.join(HERE, 'results', f'{now:%Y-%m-%d}-{host}')
    os.makedirs(os.path.dirname(stem), exist_ok=True)
+    cxx_version = output(cxx + ['--version'])
    compiler_version = cxx_version.splitlines()[0] if cxx_version else ' '.join(cxx)
    meta = [
        ('date', f'{now:%Y-%m-%d %H:%M}'),
@@ -332,7 +316,6 @@ def main():
        ('OS', f'{platform.system()} {platform.release()} ({platform.machine()})'),
        ('compiler', compiler_version),
        ('flags', ' '.join(flags)),
-        ('aligned results', ('included (flags: ' + ' '.join(align_flags) + ')') if args.aligned else 'not included'),
        ('yyjson', libs['yyjson'].version),
        ('simdjson', libs['simdjson'].version),
        ('Boost.JSON', libs['boost'].version if with_boost else 'skipped (not found)'),
@@ -345,20 +328,15 @@ def main():
        f.write('| | |\n|---|---|\n')
        for key, value in meta:
            f.write(f'| {key} | {value} |\n')
-        for label, outputs in all_outputs.items():
-            # (without --aligned there is only the default build, and no extra heading level)
-            prefix = f'{label}: ' if args.aligned else ''
-            for name, text in outputs.items():
-                f.write(f'\n## {prefix}{name}\n\n```\n{text.rstrip()}\n```\n')
+        for name, text in outputs.items():
+            f.write(f'\n## {name}\n\n```\n{text.rstrip()}\n```\n')
    with open(stem + '.csv', 'w', encoding='utf-8') as out:
        out.write(''.join(f'# {key}: {value}\n' for key, value in meta))
-        for label, build_dir, _ in variants:
-            for name in ['bench_view', 'bench_corpus', 'bench_edit', 'bench_decode']:
-                path = os.path.join(build_dir, name + '.csv')
-                if os.path.isfile(path):
-                    with open(path, encoding='utf-8') as f:
-                        # (the default build keeps its plain section names)
-                        out.write(f'# {name}' + (f' ({label})' if args.aligned else '') + '\n' + f.read())
+        for name in ['bench_view', 'bench_corpus', 'bench_edit', 'bench_decode']:
+            path = os.path.join(args.build_dir, name + '.csv')
+            if os.path.isfile(path):
+                with open(path, encoding='utf-8') as f:
+                    out.write(f'# {name}\n' + f.read())
    print(f'results: {stem}.md, {stem}.csv')


@@ -1,364 +0,0 @@
-//     __ _____ _____ _____
-//  __|  |   __|     |   | |  JSON for Modern C++ (supporting code)
-// |  |  |__   |  |  | | | |  version 3.12.0
-// |_____|_____|_____|_|___|  https://github.com/nlohmann/json
-//
-// SPDX-FileCopyrightText: 2013-2026 Niels Lohmann <https://nlohmann.me>
-// SPDX-License-Identifier: MIT
-
-#include "doctest_compatibility.h"
-
-#include <nlohmann/json_view.hpp>
-using nlohmann::json;
-using nlohmann::ordered_json;
-using nlohmann::json_document;
-using nlohmann::ordered_json_editable_document;
-using nlohmann::json_view;
-using nlohmann::ordered_json_document;
-
-#include "json_view_test_helpers.hpp"
-using json_view_test::generator;
-
-#include <array>
-#include <cstddef>
-#include <string>
-#include <vector>
-
-// These tests were split off unit-json_view_dump.cpp, whose object file got too
-// large for the MinGW assembler ("file too big"). Like that file, this one is
-// also built with C++17, as it mentions JSON_HAS_CPP_17.
-
-TEST_CASE("json_view comparison")
-{
-    SECTION("equality of the values parse() produces")
-    {
-        generator g;
-        std::vector<std::string> texts;
-        for (int i = 0; i < 600; ++i)
-        {
-            std::string text;
-            g.value(text, 0);
-            texts.push_back(text);
-            // the same value written differently: sorted keys, canonical numbers
-            texts.push_back(json::parse(text).dump(1));
-        }
-        for (std::size_t i = 0; i + 2 < texts.size(); ++i)
-        {
-            for (std::size_t k = i; k < i + 3; ++k)
-            {
-                CAPTURE(texts[i])
-                CAPTURE(texts[k])
-                const json_document a = json_document::parse(texts[i]);
-                const json_document b = json_document::parse(texts[k]);
-                const json ja = json::parse(texts[i]);
-                const json jb = json::parse(texts[k]);
-                CHECK((a.root() == b.root()) == (ja == jb));
-                CHECK((a.root() != b.root()) == (ja != jb));
-                CHECK((a.root() == jb) == (ja == jb));
-                CHECK((jb == a.root()) == (ja == jb));
-                CHECK((a.root() != jb) == (ja != jb));
-                CHECK((jb != a.root()) == (ja != jb));
-
-                // ordered_json compares members in order
-                const ordered_json_document oa = ordered_json_document::parse(texts[i]);
-                const ordered_json_document ob = ordered_json_document::parse(texts[k]);
-                const ordered_json oja = ordered_json::parse(texts[i]);
-                const ordered_json ojb = ordered_json::parse(texts[k]);
-                CHECK((oa.root() == ob.root()) == (oja == ojb));
-                CHECK((oa.root() == ojb) == (oja == ojb));
-            }
-        }
-    }
-
-    SECTION("objects whose first keys differ or repeat")
-    {
-        const std::array<const char*, 17> texts =
-        {
-            {
-                R"({"a":1,"b":2})", R"({"a":1,"c":2})", R"({"b":1,"a":2})", R"({"a":1,"a":2,"b":3})", R"({"a":2,"b":3})",
-                R"({"a":1,"b":1,"a":2})", R"({"a":2,"b":1})", R"({"a":1,"a":2})", R"({"b":1})", R"({"a":1,"b":2,"c":3,"d":4,"e":5})",
-                R"({"a":1,"b":2,"c":3,"d":4,"f":5})", R"({"a":1,"b":2,"c":3,"a":4,"e":5})", R"({"a":4,"b":2,"c":3,"e":5})",
-                R"({"\u0061":1,"b":2})", R"({})", R"([{"a":1,"b":2}])", R"([{"a":1,"c":2}])"
-            }
-        };
-        for (const char* const x : texts)
-        {
-            for (const char* const y : texts)
-            {
-                CAPTURE(x)
-                CAPTURE(y)
-                const ordered_json_document dx = ordered_json_document::parse(x);
-                const ordered_json_document dy = ordered_json_document::parse(y);
-                const ordered_json_editable_document ex = ordered_json_editable_document::parse(x);
-                const ordered_json jx = ordered_json::parse(x);
-                const ordered_json jy = ordered_json::parse(y);
-                CHECK((dx.root() == dy.root()) == (jx == jy));
-                CHECK((dx.root() == jy) == (jx == jy));
-                CHECK((ex.root() == dy.root()) == (jx == jy));
-            }
-        }
-    }
-
-    SECTION("objects with duplicate keys, small and large")
-    {
-        // n members with keys in descending order; with duplicates, some keys
-        // repeat later (the first after unique ones in key order); in reverse,
-        // the members are in ascending key order
-        const auto object = [](int n, bool duplicates, bool reverse, int value)
-        {
-            std::string s = "{";
-            for (int i = 0; i < n; ++i)
-            {
-                const int k = reverse ? i : n - 1 - i;
-                s += (i != 0 ? ",\"k" : "\"k") + std::to_string(100 + k) + "\":" + std::to_string(value + k);
-            }
-            if (duplicates)
-            {
-                for (int k = n / 2; k < n; k += 3)
-                {
-                    s += ",\"k" + std::to_string(100 + k) + "\":" + std::to_string(value + k);
-                }
-            }
-            return s + "}";
-        };
-        std::vector<std::string> texts;
-        for (const int n :
-                {
-                    3, 16, 17, 40
-                })
-        {
-            for (const int flags :
-                    {
-                        0, 1, 2, 3
-                    })
-            {
-                texts.push_back(object(n, (flags & 1) != 0, (flags & 2) != 0, 0));
-            }
-            texts.push_back(object(n, true, false, 1)); // other values
-        }
-        // many objects in one comparison (working memory reused across objects)
-        std::string array = "[";
-        std::string array_other = "[";
-        for (std::size_t i = 0; i < texts.size(); ++i)
-        {
-            array += (i != 0 ? "," : "") + texts[i];
-            array_other += (i != 0 ? "," : "") + texts[texts.size() - 1 - i];
-        }
-        texts.push_back(array + "]");
-        texts.push_back(array_other + "]");
-        for (const std::string& x : texts)
-        {
-            for (const std::string& y : texts)
-            {
-                CAPTURE(x)
-                CAPTURE(y)
-                const ordered_json_document dx = ordered_json_document::parse(x);
-                const ordered_json_document dy = ordered_json_document::parse(y);
-                const ordered_json jx = ordered_json::parse(x);
-                const ordered_json jy = ordered_json::parse(y);
-                CHECK((dx.root() == dy.root()) == (jx == jy));
-                CHECK((dx.root() == jy) == (jx == jy));
-                const json_document ux = json_document::parse(x);
-                const json uy = json::parse(y);
-                CHECK((ux.root() == uy) == (json::parse(x) == uy));
-            }
-        }
-    }
-
-    SECTION("numbers, duplicate keys, member order")
-    {
-        const auto same = [](const char* x, const char* y)
-        {
-            const json_document dx = json_document::parse(x);
-            const json_document dy = json_document::parse(y);
-            return dx.root() == dy.root();
-        };
-        CHECK(same("1", "1.0"));
-        CHECK(same("[1, -1, 2.5]", "[1.0, -1.0, 25e-1]"));
-        CHECK(!same("1", "1.5"));
-        CHECK(same("18446744073709551615", "18446744073709551615"));
-        CHECK(same(R"({"a": 1, "a": 2})", R"({"a": 2})"));
-        CHECK(!same(R"({"a": 1, "a": 2})", R"({"a": 1})"));
-        CHECK(same(R"({"a": 1, "b": 2})", R"({"b": 2, "a": 1})"));
-        CHECK(!same(R"({"a": 1})", R"({"a": 1, "b": 2})"));
-        CHECK(!same("[1, 2]", "[2, 1]"));
-        CHECK(!same("\"a\"", "\"b\""));
-        CHECK(same("\"\\u00e9\"", "\"\xc3\xa9\""));
-        CHECK(!same("null", "false"));
-        CHECK(!same("[]", "{}"));
-        const ordered_json_document dup = ordered_json_document::parse(R"({"a": 1, "b": 2, "a": 3})");
-        const ordered_json_document last = ordered_json_document::parse(R"({"a": 3, "b": 2})");
-        CHECK(dup.root() == last.root());
-        // (== compares as parse() resolves duplicates, a lookup finds the first)
-        CHECK(dup.root()["a"].materialize() == 1);
-        CHECK(dup.root()["a"] != last.root()["a"]);
-        const ordered_json_document ab = ordered_json_document::parse(R"({"a": 1, "b": 2})");
-        const ordered_json_document ba = ordered_json_document::parse(R"({"b": 2, "a": 1})");
-        CHECK(ab.root() != ba.root());
-
-        // discarded values compare as basic_json's do
-        const json discarded(json::value_t::discarded);
-        CHECK((json_view() == json_view()) == (discarded == discarded)); // NOLINT(readability-container-size-empty): operator== is tested
-        CHECK((json_view() == discarded) == (discarded == discarded)); // NOLINT(readability-container-size-empty)
-        const json_document null_document = json_document::parse("null");
-        CHECK(!(json_view() == null_document.root())); // NOLINT(readability-container-size-empty)
-        CHECK(!(null_document.root() == discarded));
-    }
-
-    SECTION("values that are the same text, or the same value written differently, at any depth")
-    {
-        // nested arrays and objects around depths where the walk over equal text gives up
-        for (const int depth :
-                {
-                    1, 5, 47, 48, 49, 50, 60, 300
-                })
-        {
-            CAPTURE(depth)
-            std::string head;
-            std::string tail;
-            for (int i = 0; i < depth; ++i)
-            {
-                head += i % 2 == 0 ? R"({"k":[1,"s",{"x":true},)" : R"([null,2.5,{"y":)";
-                tail.insert(0, i % 2 == 0 ? "]}" : "}]");
-            }
-            // the same text, one number changed, and one number written differently
-            const auto with_number = [&](const char* number)
-            {
-                std::string result = head;
-                result += number;
-                result += tail;
-                return result;
-            };
-            const std::string text = with_number("7");
-            const std::string changed = with_number("8");
-            const std::string spelled = with_number("7.0");
-            const json_document a = json_document::parse(text);
-            const json_document b = json_document::parse(text);
-            const json_document c = json_document::parse(changed);
-            const json_document d = json_document::parse(spelled);
-            CHECK(a.root() == b.root());
-            CHECK(a.root() != c.root());
-            CHECK(c.root() != a.root());
-            CHECK(a.root() == d.root());
-            CHECK(d.root() == a.root());
-            CHECK(a.root() == json::parse(text));
-            CHECK(a.root() != json::parse(changed));
-            CHECK(json::parse(spelled) == a.root());
-            const nlohmann::json_editable_document e = nlohmann::json_editable_document::parse(text);
-            CHECK(a.root() == e.root());
-            CHECK(e.root() == a.root());
-            CHECK(c.root() != e.root());
-            CHECK(e.root() == e.root());
-            const ordered_json_document oa = ordered_json_document::parse(text);
-            const ordered_json_document oc = ordered_json_document::parse(changed);
-            CHECK(oa.root() != oc.root());
-            CHECK(oa.root() == ordered_json::parse(text));
-            CHECK(oc.root() != ordered_json::parse(text));
-        }
-
-        // not the same text, but the same value
-        const auto same = [](const char* x, const char* y)
-        {
-            const json_document dx = json_document::parse(x);
-            const json_document dy = json_document::parse(y);
-            const bool equal = dx.root() == dy.root();
-            CHECK(equal == (json::parse(x) == json::parse(y)));
-            CHECK(equal == (dx.root() == json::parse(y)));
-            return equal;
-        };
-        CHECK(same(R"({"a":1,"a":2})", R"({"a":3,"a":2})"));
-        CHECK(same(R"({"a":1,"b":[1,{"c":2,"c":3}]})", R"({"b":[1,{"c":9,"c":3}],"a":1})"));
-        CHECK(!same(R"({"a":1,"a":2})", R"({"a":2,"a":3})"));
-        CHECK(same("[1.0,-0,0,1e2]", "[1.00,0,-0,100.0]"));
-        CHECK(same(R"(["\u00e9","\n"])", "[\"\xc3\xa9\",\"\\n\"]"));
-        CHECK(!same(R"({"a":[1,2,{"b":null}]})", R"({"a":[1,2,{"b":false}]})"));
-        CHECK(!same(R"({"a":[1,2,{"b":null}]})", R"({"a":[1,2,{"c":null}]})"));
-        CHECK(!same(R"({"a":[1,2,{"b":null}]})", R"({"a":[1,2,{"b":null,"c":1}]})"));
-
-        // edited documents: moved sequences, links, and values of new nodes
-        nlohmann::json_editable_document edited = nlohmann::json_editable_document::parse(R"({"a":[1,2,3],"b":{"c":"d"},"e":0.5})");
-        const json_document plain = json_document::parse(R"({"a":[1,2,3,4],"b":{"c":"x","y":null},"e":0.5,"z":[]})");
-        edited.push_back(edited.root()["a"], 4);
-        edited.set(edited.root()["b"], "c", "x");
-        edited.set(edited.root()["b"], "y", nullptr);
-        edited.set(edited.root(), "z", json::array());
-        CHECK(edited.root() == plain.root());
-        CHECK(plain.root() == edited.root());
-        edited.erase(edited.root()["a"], 0);
-        CHECK(edited.root() != plain.root());
-        CHECK(edited.root()["a"] == json::parse("[2,3,4]"));
-        const json_document tail = json_document::parse("[2,3,4]");
-        CHECK(edited.root()["a"] == tail.root());
-    }
-
-    SECTION("large documents, with a difference at any place")
-    {
-        const auto make = [](std::size_t count, std::size_t changed, bool swap_members)
-        {
-            std::string text = R"({"b":1,"list":[)";
-            for (std::size_t i = 0; i < count; ++i)
-            {
-                text += (i != 0 ? "," : "");
-                const std::string id = std::to_string(i == changed ? i + 1 : i);
-                if (swap_members && i % 3 == 0)
-                {
-                    text += R"({"v":[1.5,"s",{"k":)";
-                    text += id;
-                    text += R"(}],"id":)";
-                    text += id;
-                    text += "}";
-                }
-                else
-                {
-                    text += R"({"id":)";
-                    text += id;
-                    text += R"(,"v":[1.5,"s",{"k":)";
-                    text += id;
-                    text += "}]}";
-                }
-            }
-            return text + R"(],"a":{"y":2,"x":3}})";
-        };
-        const std::size_t count = 3000;
-        for (const std::size_t changed :
-                {
-                    count, std::size_t{0}, std::size_t{1}, count / 2, count - 1
-                })
-        {
-            for (const bool swap :
-                    {
-                        false, true
-                    })
-            {
-                CAPTURE(changed)
-                CAPTURE(swap)
-                const std::string text_a = make(count, count, false);
-                const std::string text_b = make(count, changed, swap);
-                const json_document a = json_document::parse(text_a);
-                const json_document b = json_document::parse(text_b);
-                const bool equal = changed == count;
-                CHECK((a.root() == b.root()) == equal);
-                CHECK((b.root() == a.root()) == equal);
-                CHECK((a.root() == json::parse(text_b)) == equal);
-                CHECK((json::parse(text_b) == a.root()) == equal);
-                CHECK((a.root()["list"] == b.root()["list"]) == equal);
-                const ordered_json_document oa = ordered_json_document::parse(text_a);
-                const ordered_json_document ob = ordered_json_document::parse(text_b);
-                CHECK((oa.root() == ob.root()) == (equal && !swap));
-                CHECK((oa.root() == ordered_json::parse(text_b)) == (equal && !swap));
-            }
-        }
-    }
-
-    SECTION("deep nesting")
-    {
-        const std::string deep = std::string(100000, '[') + std::string(100000, ']');
-        const json_document a = json_document::parse(deep);
-        const json_document b = json_document::parse(deep);
-        CHECK(a.root() == b.root());
-        CHECK(a.root() == json::parse(deep));
-        const std::string other = std::string(100000, '[') + "1" + std::string(100000, ']');
-        const json_document c = json_document::parse(other);
-        CHECK(a.root() != c.root());
-    }
-}
@@ -432,6 +432,101 @@ TEST_CASE("json_view dump")
    }
 }

+TEST_CASE("json_view comparison")
+{
+    SECTION("equality of the values parse() produces")
+    {
+        generator g;
+        std::vector<std::string> texts;
+        for (int i = 0; i < 600; ++i)
+        {
+            std::string text;
+            g.value(text, 0);
+            texts.push_back(text);
+            // the same value written differently: sorted keys, canonical numbers
+            texts.push_back(json::parse(text).dump(1));
+        }
+        for (std::size_t i = 0; i + 2 < texts.size(); ++i)
+        {
+            for (std::size_t k = i; k < i + 3; ++k)
+            {
+                CAPTURE(texts[i])
+                CAPTURE(texts[k])
+                const json_document a = json_document::parse(texts[i]);
+                const json_document b = json_document::parse(texts[k]);
+                const json ja = json::parse(texts[i]);
+                const json jb = json::parse(texts[k]);
+                CHECK((a.root() == b.root()) == (ja == jb));
+                CHECK((a.root() != b.root()) == (ja != jb));
+                CHECK((a.root() == jb) == (ja == jb));
+                CHECK((jb == a.root()) == (ja == jb));
+                CHECK((a.root() != jb) == (ja != jb));
+                CHECK((jb != a.root()) == (ja != jb));
+
+                // ordered_json compares members in order
+                const ordered_json_document oa = ordered_json_document::parse(texts[i]);
+                const ordered_json_document ob = ordered_json_document::parse(texts[k]);
+                const ordered_json oja = ordered_json::parse(texts[i]);
+                const ordered_json ojb = ordered_json::parse(texts[k]);
+                CHECK((oa.root() == ob.root()) == (oja == ojb));
+                CHECK((oa.root() == ojb) == (oja == ojb));
+            }
+        }
+    }
+
+    SECTION("numbers, duplicate keys, member order")
+    {
+        const auto same = [](const char* x, const char* y)
+        {
+            const json_document dx = json_document::parse(x);
+            const json_document dy = json_document::parse(y);
+            return dx.root() == dy.root();
+        };
+        CHECK(same("1", "1.0"));
+        CHECK(same("[1, -1, 2.5]", "[1.0, -1.0, 25e-1]"));
+        CHECK(!same("1", "1.5"));
+        CHECK(same("18446744073709551615", "18446744073709551615"));
+        CHECK(same(R"({"a": 1, "a": 2})", R"({"a": 2})"));
+        CHECK(!same(R"({"a": 1, "a": 2})", R"({"a": 1})"));
+        CHECK(same(R"({"a": 1, "b": 2})", R"({"b": 2, "a": 1})"));
+        CHECK(!same(R"({"a": 1})", R"({"a": 1, "b": 2})"));
+        CHECK(!same("[1, 2]", "[2, 1]"));
+        CHECK(!same("\"a\"", "\"b\""));
+        CHECK(same("\"\\u00e9\"", "\"\xc3\xa9\""));
+        CHECK(!same("null", "false"));
+        CHECK(!same("[]", "{}"));
+        const ordered_json_document dup = ordered_json_document::parse(R"({"a": 1, "b": 2, "a": 3})");
+        const ordered_json_document last = ordered_json_document::parse(R"({"a": 3, "b": 2})");
+        CHECK(dup.root() == last.root());
+        // (== compares as parse() resolves duplicates, a lookup finds the first)
+        CHECK(dup.root()["a"].materialize() == 1);
+        CHECK(dup.root()["a"] != last.root()["a"]);
+        const ordered_json_document ab = ordered_json_document::parse(R"({"a": 1, "b": 2})");
+        const ordered_json_document ba = ordered_json_document::parse(R"({"b": 2, "a": 1})");
+        CHECK(ab.root() != ba.root());
+
+        // discarded values compare as basic_json's do
+        const json discarded(json::value_t::discarded);
+        CHECK((json_view() == json_view()) == (discarded == discarded)); // NOLINT(readability-container-size-empty): operator== is tested
+        CHECK((json_view() == discarded) == (discarded == discarded)); // NOLINT(readability-container-size-empty)
+        const json_document null_document = json_document::parse("null");
+        CHECK(!(json_view() == null_document.root())); // NOLINT(readability-container-size-empty)
+        CHECK(!(null_document.root() == discarded));
+    }
+
+    SECTION("deep nesting")
+    {
+        const std::string deep = std::string(100000, '[') + std::string(100000, ']');
+        const json_document a = json_document::parse(deep);
+        const json_document b = json_document::parse(deep);
+        CHECK(a.root() == b.root());
+        CHECK(a.root() == json::parse(deep));
+        const std::string other = std::string(100000, '[') + "1" + std::string(100000, ']');
+        const json_document c = json_document::parse(other);
+        CHECK(a.root() != c.root());
+    }
+}
+
 TEST_CASE("json_view large objects")
 {
    // objects with 128 members or more are looked up with a hash index
@@ -941,123 +941,3 @@ TEST_CASE("json_view edits: duplicate keys")
        CHECK(d.root()["o"]["d"].get<int>() == 0);
    }
 }
-
-#if !defined(JSON_NOEXCEPTION)
-TEST_CASE("json_view edits: check_utf8 agrees with the byte-wise check")
-{
-    namespace dv = nlohmann::detail::view;
-
-    // "ok" or the exception message
-    const auto run = [](bool fast, const std::string & s) -> std::string
-    {
-        try
-        {
-            if (fast)
-            {
-                dv::check_utf8(s.data(), s.size());
-            }
-            else
-            {
-                dv::check_utf8_bytewise(reinterpret_cast<const unsigned char*>(s.data()), s.size(), 0);
-            }
-        }
-        catch (const json::type_error& e)
-        {
-            return {e.what()};
-        }
-        return {"ok"};
-    };
-    std::size_t errors = 0;
-    const auto same = [&](const std::string & s)
-    {
-        const std::string a = run(true, s);
-        const std::string b = run(false, s);
-        if (a != b)
-        {
-            INFO("fast: " << a << ", byte-wise: " << b << ", length " << s.size());
-            CHECK(a == b);
-        }
-        errors += b != "ok" ? 1u : 0u;
-    };
-
-    const std::vector<std::string> pieces =
-    {
-        "a", "Z", " ", "\"", "\\", "\n", "\x01", "\x7f", "\xc3\xa4", "\xe4\xb8\xad", "\xf0\x9f\x98\x80",
-        "\x80", "\xbf", "\xc0\x80", "\xc1\xbf", "\xc2", "\xe0\x80\x80", "\xe0\x9f\xbf", "\xed\xa0\x80", "\xed\xbf\xbf",
-        "\xf0\x80\x80\x80", "\xf0\x8f\xbf\xbf", "\xf4\x90\x80\x80", "\xf4\x8f\xbf\xbf", "\xf5", "\xf8", "\xff", "\xfe",
-        "\xe4\xb8", "\xf0\x9f\x98", "\xf0\x9f", "\xf0"
-    };
-
-    // every piece behind prefixes of every length, and followed by more bytes
-    for (std::size_t prefix = 0; prefix <= 64; ++prefix)
-    {
-        for (const auto& piece : pieces)
-        {
-            same(std::string(prefix, 'x') + piece);
-            same(std::string(prefix, 'x') + piece + "yz");
-            same(std::string(prefix, '"') + piece);
-            same(std::string(prefix, '\xc3') + piece);
-            same(std::string(prefix / 2, '\xc3').append(prefix / 2, '\xa4') + piece);
-            same(std::string(prefix, 'x') + "\xe4\xb8\xad" + piece);
-        }
-    }
-    // an invalid byte at every position of valid strings of every length
-    for (std::size_t len = 0; len <= 64; ++len)
-    {
-        const std::string ascii(len, 'a');
-        std::string mixed;
-        while (mixed.size() < len)
-        {
-            if (mixed.size() % 7 == 0)
-            {
-                mixed += "\xc3\xa4";
-            }
-            else if (mixed.size() % 11 == 0)
-            {
-                mixed += "\xf0\x9f\x98\x80";
-            }
-            else
-            {
-                mixed += "a";
-            }
-        }
-        same(ascii);
-        same(mixed);
-        for (std::size_t pos = 0; pos < len; ++pos)
-        {
-            for (const char bad :
-                    {'\x80', '\xc0', '\xc2', '\xe0', '\xf4', '\xff', '"', '\\', '\x1f'
-                    })
-            {
-                std::string s = ascii;
-                s[pos] = bad;
-                same(s);
-                s = mixed;
-                s[pos] = bad;
-                same(s);
-            }
-        }
-    }
-    // random bytes, biased to the interesting ones
-    std::mt19937 gen(5869); // NOLINT(cert-msc32-c,cert-msc51-cpp,bugprone-random-generator-seed): reproducible
-    static const std::array<unsigned char, 23> interesting = {{0x00, 0x1f, 0x22, 0x5c, 0x7f, 0x80, 0x8f, 0x90, 0x9f, 0xa0, 0xbf, 0xc0, 0xc2, 0xdf, 0xe0, 0xe1, 0xed, 0xef, 0xf0, 0xf1, 0xf4, 0xf5, 0xff}};
-    for (int i = 0; i < 100000; ++i)
-    {
-        std::string s(gen() % 80, 'a');
-        for (auto& c : s)
-        {
-            const unsigned r = gen() % 8;
-            if (r == 0)
-            {
-                c = static_cast<char>(gen() & 0xff);
-            }
-            else if (r == 1)
-            {
-                c = static_cast<char>(interesting[gen() % interesting.size()]);
-            }
-        }
-        same(s);
-    }
-    CHECK(errors > 1000);
-}
-#endif
@@ -701,64 +701,6 @@ TEST_CASE("json_view images: ownership")
 #if !defined(JSON_NOEXCEPTION)
 TEST_CASE("json_view images: errors")
 {
-    SECTION("float tokens: a changed byte is accepted if the text is still a number with the digits the node records")
-    {
-        for (const char* const token :
-                {
-                    "-12.375", "0.5", "123456.0", "-0.0", "9999999999999999999.5", "0.000000000000000000000001", "1.25e10", "5E-3"
-                })
-        {
-            CAPTURE(token)
-            const std::string text = std::string("[") + token + "]";
-            const json_document d = json_document::parse(text);
-            const std::vector<std::uint8_t> image = d.save();
-            const std::size_t at = text_at(image) + 1; // the first byte of the token
-            const std::uint16_t recorded = node_at(image, 1).extra;
-            CHECK(loaded_dump(image) == json::parse(text).dump());
-            for (std::size_t pos = 0; token[pos] != '\0'; ++pos)
-            {
-                for (unsigned int byte = 0; byte < 256; ++byte)
-                {
-                    std::vector<std::uint8_t> changed = image;
-                    changed[at + pos] = static_cast<std::uint8_t>(byte);
-                    std::string t = token;
-                    t[pos] = static_cast<char>(byte);
-                    // the digits of the integer part and of the fraction of the changed token
-                    std::size_t integer = 0;
-                    std::size_t fraction = 0;
-                    std::size_t k = (t[0] == '-') ? 1 : 0;
-                    for (; k < t.size() && t[k] >= '0' && t[k] <= '9'; ++k)
-                    {
-                        ++integer;
-                    }
-                    if (k < t.size() && t[k] == '.')
-                    {
-                        for (++k; k < t.size() && t[k] >= '0' && t[k] <= '9'; ++k)
-                        {
-                            ++fraction;
-                        }
-                    }
-                    // (as a JSON text, the token may have white space around it)
-                    const bool float_token = json::accept(t) && t.find_first_of(std::string(" \t\r\n\0", 5)) == std::string::npos && (t.find('.') != std::string::npos || t.find_first_of("eE") != std::string::npos) // NOLINT(abseil-string-find-str-contains)
-                                             && ((integer | (fraction << 8U)) == recorded);
-                    CAPTURE(pos)
-                    CAPTURE(byte)
-                    std::string result;
-                    try
-                    {
-                        result = loaded_dump(changed);
-                    }
-                    catch (const json::parse_error& e)
-                    {
-                        CHECK(std::string(e.what()) == check_failed);
-                        result = "rejected";
-                    }
-                    CHECK((result != "rejected") == float_token);
-                }
-            }
-        }
-    }
-
    SECTION("invalid UTF-8 of a decoded string: the compact dump writes it, the others throw")
    {
        const json_document d = json_document::parse(R"({"k\n":"\u00e9x"})");
@@ -23,6 +23,7 @@ using nlohmann::json;
 #include <cstdint>
 #include <sstream>
 #include <iomanip>
+#include <limits>
 #include <string>
 #include <vector>

@@ -248,6 +249,51 @@ TEST_CASE_TEMPLATE("serialization for extreme integer values", T, int32_t, uint3
    }
 }

+TEST_CASE("integers of every digit count are written like std::to_string")
+{
+    // dump_integer() writes up to 16 digits in two groups of eight and 17 to
+    // 20 digits as one to four digits and two groups of eight
+    std::vector<std::uint64_t> values;
+    std::uint64_t power = 1;
+    for (int digits = 1; digits <= 20; ++digits)
+    {
+        values.push_back(power);                     // 1 followed by zeros
+        values.push_back(power + 1);
+        values.push_back((power * 2) - 1);
+        if (digits < 20)
+        {
+            values.push_back((power * 10) - 1);      // all 9s
+            values.push_back((power * 10) - power);  // 9 followed by zeros
+            power *= 10;
+        }
+    }
+    values.push_back((std::numeric_limits<std::uint64_t>::max)());
+    values.push_back(static_cast<std::uint64_t>((std::numeric_limits<std::int64_t>::max)()));
+    values.push_back(static_cast<std::uint64_t>((std::numeric_limits<std::int64_t>::max)()) + 1);
+    std::uint64_t state = 0x9E3779B97F4A7C15u;
+    for (int i = 0; i < 20000; ++i)
+    {
+        state = (state * 6364136223846793005u) + 1442695040888963407u;
+        values.push_back(state >> (state % 61));     // every bit length
+    }
+
+    for (const auto v : values)
+    {
+        CAPTURE(v)
+        CHECK(json(v).dump() == std::to_string(v));
+        if (v <= static_cast<std::uint64_t>((std::numeric_limits<std::int64_t>::max)()))
+        {
+            const auto s = static_cast<std::int64_t>(v);
+            CHECK(json(s).dump() == std::to_string(s));
+            CHECK(json(-s).dump() == std::to_string(-s));
+        }
+    }
+    CHECK(json((std::numeric_limits<std::int64_t>::min)()).dump() == "-9223372036854775808");
+
+    // in a container, so the digits are followed by other output
+    CHECK(json::array({std::uint64_t{18446744073709551615u}, std::int64_t{-1234567890123456789}, 1}).dump() == "[18446744073709551615,-1234567890123456789,1]");
+}
+
 TEST_CASE("dump with binary values")
 {
    auto binary = json::binary({1, 2, 3, 4});
@@ -1,34 +0,0 @@
-# check_path_filters
-
-The compiler workflows [`ubuntu.yml`](../../.github/workflows/ubuntu.yml),
-[`macos.yml`](../../.github/workflows/macos.yml), and [`windows.yml`](../../.github/workflows/windows.yml) skip pull
-requests that change only files no compiler job reads: the documentation, Markdown files, GitHub metadata, other
-workflows, and the license files. Pushes to `develop`, `master`, and `release/*` always run them. The documentation,
-license, and path-filter checks run in [`repository_checks.yml`](../../.github/workflows/repository_checks.yml), which
-has no path filter.
-
-The filter starts with `'**'` and excludes these files explicitly, so a new file runs the compiler workflows unless it
-is excluded on purpose. [`check_path_filters.py`](check_path_filters.py) holds the filter (`PATHS`) and checks that
-
- each of the three workflows has exactly this filter, with its own workflow file included,
- the CI targets that read excluded files (`UNFILTERED_TARGETS`) do not run in these workflows, and
- no file the filter keeps (sources, tests, build files, tools, workflows) mentions an excluded file or directory
-  outside a comment line, unless the mention is listed in `KNOWN_REFERENCES` with a reason.
-
-When the check reports a mention, decide whether a compiler job reads that file:
-
- If it does, include the file in `PATHS` after the exclusions (as `package_managers.md` and the Swift example are) and
-  copy the new filter into the three workflows.
- If it does not, add the mention to `KNOWN_REFERENCES` with the reason.
-
-Run the check with
-
-```shell
-python3 tools/check_path_filters/check_path_filters.py
-```
-
-To see which workflows a pull request would run, pass the changed files:
-
-```shell
-python3 tools/check_path_filters/check_path_filters.py --changed $(git diff --name-only origin/develop)
-```
@@ -1,273 +0,0 @@
-#!/usr/bin/env python3
-"""Check the path filters of the compiler workflows.
-
-ubuntu.yml, macos.yml and windows.yml skip pull requests that change only files
-no compiler job reads (documentation, Markdown files, GitHub metadata, license
-files). The filter starts with '**' and excludes these files explicitly, so a
-new file runs the workflows unless it is excluded on purpose.
-
-The script checks that
-
- each of the three workflows has exactly the filter defined in PATHS below,
-  with its own workflow file included, and
- no tracked file that the filter keeps (sources, tests, build files, tools,
-  workflows) mentions a file the filter excludes, unless the mention is listed
-  in KNOWN_REFERENCES with the reason why it does not matter.
-
-A mention found this way must either be added to PATHS as an included path
-(the file is read by a compiler job) or to KNOWN_REFERENCES (it is not).
-
-With --changed FILE..., the script prints instead which workflows a pull
-request changing these files would run.
-"""
-
-import argparse
-import os
-import re
-import subprocess  # nosec B404
-import sys
-
-REPO_ROOT = os.path.normpath(os.path.join(sys.path[0], '..', '..'))
-SELF = 'tools/check_path_filters/check_path_filters.py'
-
-WORKFLOWS = ['.github/workflows/ubuntu.yml', '.github/workflows/macos.yml', '.github/workflows/windows.yml']
-
-# The pull_request paths filter of the workflows above; '{workflow}' is replaced
-# with the workflow's own file. GitHub applies the patterns in order: a file
-# matching a later pattern is included ('pattern') or excluded ('!pattern').
-PATHS = [
-    '**',
-    '!docs/**',
-    '!**.md',
-    '!.github/*',
-    '!.github/ISSUE_TEMPLATE/**',
-    '!.github/external_ci/**',
-    '!.github/workflows/**',
-    '!.reuse/**',
-    '!LICENSES/**',
-    '!CITATION.cff',
-    '!REUSE.toml',
-    # read by tools/check_build_options in the ci_meson_install job (ubuntu.yml)
-    'docs/mkdocs/docs/integration/package_managers.md',
-    # built by the swiftpm job (macos.yml)
-    'docs/mkdocs/docs/integration/swift/**',
-    '{workflow}',
-]
-
-# Mentions of excluded files that no job of the three workflows depends on:
-# (file that mentions it, the mention, reason)
-KNOWN_REFERENCES = [
-    ('cmake/ci.cmake', 'docs/', 'ci_test_examples; runs in repository_checks.yml, which has no path filter'),
-    ('cmake/ci.cmake', 'docs/mkdocs/', 'ci_test_build_documentation and ci_test_documentation_mermaid; they run in '
-                                       'repository_checks.yml, which has no path filter'),
-    ('cmake/ci.cmake', 'docs/mkdocs/docs/examples/', 'indentation check of ci_test_amalgamation; the same check runs in '
-                                                     'check_amalgamation.yml, which has no path filter'),
-    ('Makefile', 'docs/mkdocs/docs/examples/', 'make pretty; runs in check_amalgamation.yml, which has no path filter'),
-    ('Makefile', 'ChangeLog.md', 'make ChangeLog.md writes the file; no CI job runs it'),
-    ('Makefile', 'tests/fuzzing.md', 'help text'),
-    ('Makefile', 'tools/generate_natvis/README.md', 'help text'),
-    ('tests/src/make_test_data_available.hpp', 'README.md', 'a file of the external test data repository'),
-    ('tools/check_build_options/check_build_options.py', 'docs/', 'builds the path of package_managers.md, which '
-                                                                  'PATHS includes'),
-    ('tools/ci_jobs/ci_jobs.py', 'docs/mkdocs/docs/community/quality_assurance.md',
-     'checks the job table; runs in repository_checks.yml, which has no path filter'),
-    ('tools/ci_jobs/ci_jobs.py', '.github/workflows/repository_checks.yml', 'read by --compare, a manual check'),
-    ('tools/ci_jobs/ci_jobs.py', '.github/workflows/check_amalgamation.yml', 'read by --compare, a manual check'),
-]
-
-
-# CI targets that read excluded files; they must run in a workflow without a path filter
-UNFILTERED_TARGETS = ['ci_test_examples', 'ci_test_build_documentation', 'ci_test_documentation_mermaid',
-                      'ci_test_amalgamation', 'ci_reuse_compliance']
-
-
-def git_files(root):
-    # fixed command, no user input; includes new files not yet added, so a local run
-    # sees what CI sees after the commit
-    out = subprocess.check_output(['git', 'ls-files', '-z', '--cached', '--others', '--exclude-standard'], cwd=root)  # nosec B603, B607
-    return [f for f in out.decode('utf-8').split('\0') if f]
-
-
-def glob_to_regex(pattern):
-    """Translate a GitHub Actions path pattern to a regular expression."""
-    regex = ''
-    i = 0
-    while i < len(pattern):
-        if pattern.startswith('**', i):
-            regex += '.*'
-            i += 2
-        elif pattern[i] == '*':
-            regex += '[^/]*'
-            i += 1
-        elif pattern[i] == '?':
-            regex += '[^/]'
-            i += 1
-        else:
-            regex += re.escape(pattern[i])
-            i += 1
-    return re.compile(regex + r'\Z')
-
-
-def compile_filter(paths, workflow):
-    return [(p.startswith('!'), glob_to_regex(p.lstrip('!').replace('{workflow}', workflow))) for p in paths]
-
-
-def included(compiled, path):
-    result = False
-    for negated, regex in compiled:
-        if regex.match(path):
-            result = not negated
-    return result
-
-
-def read_filter(root, workflow):
-    """Return the pull_request paths list of a workflow file."""
-    with open(os.path.join(root, workflow), encoding='utf-8') as f:
-        lines = f.read().splitlines()
-    paths = None
-    in_pull_request = False
-    for line in lines:
-        if re.match(r'^  pull_request:', line):
-            in_pull_request = True
-            continue
-        if in_pull_request:
-            if re.match(r'^  \S', line) or re.match(r'^\S', line):
-                break
-            if re.match(r'^    paths:\s*$', line):
-                paths = []
-                continue
-            m = re.match(r"^      - '(.*)'\s*(#.*)?$", line)
-            if paths is not None and m:
-                paths.append(m.group(1))
-            elif paths is not None and line.strip() and not line.strip().startswith('#'):
-                break
-    return paths
-
-
-TOKEN = re.compile(r'(["\'/]?)([\w.-]+(?:/[\w.-]+)*)')
-
-
-COMMENT_LINE = re.compile(r'^[ \t]*(//|#|/?\*|--).*$', re.MULTILINE)
-
-
-class Mentions:
-    """Finds the words and paths in a text that name an excluded file or directory."""
-
-    def __init__(self, files, excluded, is_excluded):
-        self.files = set(files)
-        self.excluded = excluded
-        self.dirs = {'/'.join(f.split('/')[:n]) for f in files for n in range(1, f.count('/') + 1)}
-        # an excluded directory: a new file in it would be excluded
-        self.excluded_dirs = {d for d in self.dirs if is_excluded(d + '/new_file')}
-        # base names that only excluded files have, e.g. 'ChangeLog.md' but not 'CMakeLists.txt'
-        self.names = {os.path.basename(f) for f in excluded} - {os.path.basename(f) for f in files if f not in excluded}
-
-    def find(self, text):
-        """Yield (offset, mention) for every word or path in text that names an excluded file or directory."""
-        for m in TOKEN.finditer(text):
-            parts = m.group(2).rstrip('/').split('/')
-            # a single word names a directory only in a path context, e.g. 'docs' in os.path.join('docs', ...)
-            path_context = len(parts) > 1 or m.group(1)
-            for i in range(len(parts)):
-                path = '/'.join(parts[i:])
-                if path in self.files:
-                    if path in self.excluded:
-                        yield m.start(2), path
-                    break
-                if path in self.dirs and path_context:
-                    if path in self.excluded_dirs:
-                        yield m.start(2), path + '/'
-                    break
-            else:
-                if parts[-1] in self.names and '.' in parts[-1]:
-                    yield m.start(2), parts[-1]
-
-
-def known(path, mention):
-    return any(path == file and mention == known_mention for file, known_mention, _ in KNOWN_REFERENCES)
-
-
-def check_workflows(root):
-    """Return the errors in the filters of the workflows and in the targets they run."""
-    errors = []
-    for workflow in WORKFLOWS:
-        expected = [p.replace('{workflow}', workflow) for p in PATHS]
-        actual = read_filter(root, workflow)
-        if actual != expected:
-            errors.append('{}: the pull_request paths filter differs from tools/check_path_filters/check_path_filters.py\n'
-                          '  expected: {}\n  actual:   {}'.format(workflow, expected, actual))
-        with open(os.path.join(root, workflow), encoding='utf-8') as f:
-            text = f.read()
-        errors += ['{}: runs {}, which reads excluded files; run it in repository_checks.yml'.format(workflow, target)
-                   for target in UNFILTERED_TARGETS if re.search(r'\b' + target + r'\b', text)]
-    return errors
-
-
-def scanned_text(root, path):
-    """Return the text of a kept file without comment lines and without the filter itself, or None to skip it."""
-    # third-party code and Markdown files read nothing; this script lists the excluded files
-    if path.startswith('tests/thirdparty/') or path.endswith('.md') or path == SELF:
-        return None
-    try:
-        with open(os.path.join(root, path), encoding='utf-8') as f:
-            # a mention in a comment line reads nothing; keep the line numbers
-            text = COMMENT_LINE.sub('', f.read())
-    except (UnicodeDecodeError, OSError):
-        return None
-    if path in WORKFLOWS:
-        # the filter itself lists the excluded files
-        for p in PATHS:
-            text = text.replace("      - '{}'".format(p.replace('{workflow}', path)), '')
-    return text
-
-
-def check_mentions(root, files, excluded, finder):
-    """Return an error for every mention of an excluded file in a kept file that KNOWN_REFERENCES does not list."""
-    errors = []
-    for path in sorted(set(files) - excluded):
-        text = scanned_text(root, path)
-        reported = set()
-        for offset, mention in finder.find(text or ''):
-            if mention not in reported and not known(path, mention):
-                reported.add(mention)
-                line = text.count('\n', 0, offset) + 1
-                errors.append('{}:{}: mentions excluded {}; include it in PATHS if a compiler job reads it, '
-                              'or add it to KNOWN_REFERENCES'.format(path, line, mention))
-    return errors
-
-
-def check(root):
-    files = git_files(root)
-    union = [compile_filter(PATHS, w) for w in WORKFLOWS]
-
-    def is_excluded(path):
-        return not any(included(c, path) for c in union)
-
-    excluded = {f for f in files if is_excluded(f)}
-    errors = check_workflows(root) + check_mentions(root, files, excluded, Mentions(files, excluded, is_excluded))
-    for e in errors:
-        print(e)
-    if not errors:
-        print('path filters OK: {} of {} tracked files skip the compiler workflows'.format(len(excluded), len(files)))
-    return 1 if errors else 0
-
-
-def explain(changed):
-    for workflow in WORKFLOWS:
-        compiled = compile_filter(PATHS, workflow)
-        hits = [f for f in changed if included(compiled, f)]
-        print('{}: {}'.format(workflow, 'runs ({})'.format(', '.join(hits[:3]) + (' ...' if len(hits) > 3 else ''))
-                                       if hits else 'skipped'))
-    return 0
-
-
-def main():
-    parser = argparse.ArgumentParser(description=__doc__.splitlines()[0])
-    parser.add_argument('--root', default=REPO_ROOT, help='repository root')
-    parser.add_argument('--changed', nargs='+', metavar='FILE', help='show which workflows these changed files run')
-    args = parser.parse_args()
-    return explain(args.changed) if args.changed else check(args.root)
-
-
-if __name__ == '__main__':
-    sys.exit(main())
@@ -1,27 +0,0 @@
-# ci_jobs
-
-The compiler jobs of [`ubuntu.yml`](../../.github/workflows/ubuntu.yml) are split into three sets, chosen by each job's
-`if:` condition (see [How CI runs](https://json.nlohmann.me/community/quality_assurance/#how-ci-runs)):
-
- **PR set**: every push to a pull request, and every push to `develop`, `master`, and `release/*`;
- **full set**: after the PR set passed, on pull requests with the label "🚀 ready to merge" and on every push;
- **nightly set**: every night on `develop`, on every push to `master` and `release/*`, and when started by hand.
-
-A matrix whose entries belong to different sets is split into one job per set: the full-set job gets the suffix
-`_full`, the nightly-set job `_nightly`, and both share their steps with the PR-set job through YAML anchors.
-
-[`ci_jobs.py`](ci_jobs.py) checks that
-
- every job of `ubuntu.yml` has the `if:` condition of exactly one set (the conditions are in `SETS`),
- every full-set job waits for (`needs:`) exactly the PR set, and `nightly_report` for exactly the nightly set, and
- the job table in [`quality_assurance.md`](../../docs/mkdocs/docs/community/quality_assurance.md) is up to date.
-
-```shell
-python3 -m venv venv && venv/bin/pip install -r tools/ci_jobs/requirements.txt
-venv/bin/python tools/ci_jobs/ci_jobs.py                       # check
-venv/bin/python tools/ci_jobs/ci_jobs.py --markdown            # print the job table for the documentation
-venv/bin/python tools/ci_jobs/ci_jobs.py --compare origin/develop  # list configurations added or removed since develop
-```
-
-Use `--compare` when changing the workflows: a configuration that disappears fails it, so no compiler, version, or
-standard is dropped by accident when jobs are split, merged, or moved between sets.
@@ -1,230 +0,0 @@
-#!/usr/bin/env python3
-"""List and check the jobs of the compiler workflows and the set each job belongs to.
-
-The jobs of a tiered workflow (ubuntu.yml) belong to one of three sets, chosen
-by the job's `if:` condition:
-
- PR set: every pull request push and every push,
- full set: after the PR set passed, on pushes and on pull requests with the
-  "🚀 ready to merge" label,
- nightly set: nightly on develop, on pushes to master and release/*, and when
-  started by hand.
-
-The jobs of the other workflows run on every push and pull request.
-
-The script checks that every job of a tiered workflow belongs to exactly one
-set, that the full set waits for the whole PR set, that the nightly report
-waits for the whole nightly set, and that the job table in
-docs/mkdocs/docs/community/quality_assurance.md is up to date.
-
-  --markdown       print the job table for the documentation
-  --compare REF    list the configurations (job and matrix values) added or
-                   removed since the git revision REF; fails if one was removed
-"""
-
-import argparse
-import collections
-import itertools
-import os
-import re
-import subprocess  # nosec B404
-import sys
-
-import yaml
-
-REPO_ROOT = os.path.normpath(os.path.join(sys.path[0], '..', '..'))
-DOCS = 'docs/mkdocs/docs/community/quality_assurance.md'
-BEGIN, END = '<!-- ci_jobs: begin -->', '<!-- ci_jobs: end -->'
-
-WORKFLOWS = ['.github/workflows/ubuntu.yml', '.github/workflows/macos.yml', '.github/workflows/windows.yml']
-TIERED = ['.github/workflows/ubuntu.yml']
-# --compare also counts the jobs of these workflows, so a job moved between workflows is not a removed one
-COMPARED = WORKFLOWS + ['.github/workflows/repository_checks.yml', '.github/workflows/check_amalgamation.yml']
-
-LABEL = '🚀 ready to merge'
-SETS = collections.OrderedDict([
-    ('PR set', "${{ github.event_name != 'schedule' && (github.event.action != 'labeled' || "
-               "github.event.label.name == '" + LABEL + "') }}"),
-    ('full set', "${{ github.event_name == 'push' || github.event_name == 'workflow_dispatch' || "
-                 "contains(github.event.pull_request.labels.*.name, '" + LABEL + "') }}"),
-    ('nightly set', "${{ github.event_name == 'schedule' || github.event_name == 'workflow_dispatch' || "
-                    "(github.event_name == 'push' && github.ref != 'refs/heads/develop') }}"),
-])
-UNTIERED = 'every push and PR'
-REPORT_JOB = 'nightly_report'
-
-# a job split by set keeps its name and gets one of these suffixes
-SUFFIXES = {'full set': '_full', 'nightly set': '_nightly'}
-
-
-def read(root, path, ref=None):
-    if ref is None:
-        with open(os.path.join(root, path), encoding='utf-8') as f:
-            return f.read()
-    # fixed command; ref is a git revision given on the command line
-    return subprocess.check_output(['git', 'show', '{}:{}'.format(ref, path)], cwd=root,  # nosec B603, B607
-                                   stderr=subprocess.DEVNULL).decode('utf-8')
-
-
-def add_include(combos, keys, inc):
-    """Apply one include entry: extend the matching configurations, or add it as a new one."""
-    matching = [c for c in combos if all(c[k] == v for k, v in inc.items() if k in keys)]
-    for c in matching:
-        c.update({k: v for k, v in inc.items() if k not in keys})
-    if not matching:
-        combos.append(dict(inc))
-
-
-def expand(matrix):
-    """Return the configurations of a job's strategy.matrix like GitHub Actions does."""
-    if not matrix:
-        return [{}]
-    keys = [k for k in matrix if k not in ('include', 'exclude')]
-    combos = [dict(zip(keys, values)) for values in itertools.product(*(matrix[k] for k in keys))] if keys else []
-    for ex in matrix.get('exclude') or []:
-        combos = [c for c in combos if any(c.get(k) != v for k, v in ex.items())]
-    for inc in matrix.get('include') or []:
-        add_include(combos, keys, inc)
-    return combos
-
-
-def jobs_of(root, workflow, ref=None):
-    """Yield (job id, set, list of configurations) for every job of a workflow."""
-    data = yaml.safe_load(read(root, workflow, ref))
-    for job_id, job in data['jobs'].items():
-        condition = job.get('if')
-        job_set = UNTIERED if condition is None else next((s for s, c in SETS.items() if c == condition), None)
-        matrix = (job.get('strategy') or {}).get('matrix')
-        yield job_id, job_set, job, expand(matrix)
-
-
-def base_id(job_id, job_set):
-    suffix = SUFFIXES.get(job_set)
-    return job_id[:-len(suffix)] if suffix and job_id.endswith(suffix) else job_id
-
-
-def label(config):
-    return ', '.join(str(v) for k, v in config.items() if k != 'os' or len(config) == 1)
-
-
-def configurations(root, ref=None):
-    """Return a Counter of (job name without set suffix, configuration) over the compared workflows."""
-    result = collections.Counter()
-    for workflow in COMPARED:
-        try:
-            jobs = list(jobs_of(root, workflow, ref))
-        except (OSError, subprocess.CalledProcessError):
-            continue  # the workflow does not exist in this revision
-        for job_id, job_set, _, configs in jobs:
-            if job_id == REPORT_JOB:
-                continue
-            for c in configs:
-                result[(base_id(job_id, job_set), tuple(sorted((k, str(v)) for k, v in c.items())))] += 1
-    return result
-
-
-def markdown(root):
-    rows = []
-    order = list(SETS) + [UNTIERED]
-    for workflow in WORKFLOWS:
-        for job_id, job_set, _, configs in jobs_of(root, workflow):
-            if job_id == REPORT_JOB:
-                continue
-            labels = [label(c) for c in configs if c]
-            rows.append((order.index(job_set) if job_set in order else len(order), os.path.basename(workflow), job_id,
-                         job_set or 'no set', '; '.join(labels) or '-'))
-    rows.sort(key=lambda r: (r[0], r[1]))
-    lines = ['| Set | Workflow | Job | Configurations |', '|-----|----------|-----|----------------|']
-    lines += ['| {} | {} | `{}` | {} |'.format(s, w, j, c) for _, w, j, s, c in rows]
-    return lines
-
-
-def check_sets(workflow, jobs):
-    """Return the errors in the sets of a tiered workflow's jobs and the jobs of each set."""
-    errors = []
-    by_set = collections.defaultdict(set)
-    for job_id, job_set, _, _ in jobs:
-        if job_id == REPORT_JOB:
-            continue
-        if job_set in SETS:
-            by_set[job_set].add(job_id)
-        else:
-            errors.append('{}: job {} has an if: condition of no set; use one of the conditions in '
-                          'tools/ci_jobs/ci_jobs.py'.format(workflow, job_id))
-    return errors, by_set
-
-
-def check_needs(workflow, jobs, by_set):
-    """Return the errors in the needs: of a tiered workflow's jobs."""
-    required = {'full set': by_set['PR set'], 'PR set': set(), 'nightly set': set()}
-    errors = []
-    for job_id, job_set, job, _ in jobs:
-        needs = job.get('needs') or []
-        needs = {needs} if isinstance(needs, str) else set(needs)
-        expected = by_set['nightly set'] if job_id == REPORT_JOB else required.get(job_set, needs)
-        if needs != expected:
-            errors.append('{}: job {} must need exactly: {}'.format(workflow, job_id, ', '.join(sorted(expected)) or 'no job'))
-    return errors
-
-
-def check_docs(root):
-    """Return an error if the job table in the documentation is not up to date."""
-    text = read(root, DOCS)
-    block = re.search(re.escape(BEGIN) + r'\n(.*?)\n[ \t]*' + re.escape(END), text, re.S)
-    if not block:
-        return ['{}: markers {} and {} not found'.format(DOCS, BEGIN, END)]
-    indent = re.match(r'[ \t]*', block.group(1)).group(0)
-    if block.group(1) != '\n'.join(indent + line for line in markdown(root)):
-        return ['{}: the job table is out of date; replace it with the output of '
-                'python3 tools/ci_jobs/ci_jobs.py --markdown'.format(DOCS)]
-    return []
-
-
-def check(root):
-    errors = []
-    for workflow in TIERED:
-        jobs = list(jobs_of(root, workflow))
-        set_errors, by_set = check_sets(workflow, jobs)
-        errors += set_errors + check_needs(workflow, jobs, by_set)
-    errors += check_docs(root)
-
-    for e in errors:
-        print(e)
-    if not errors:
-        counts = collections.Counter()
-        for workflow in WORKFLOWS:
-            for job_id, job_set, _, configs in jobs_of(root, workflow):
-                if job_id != REPORT_JOB:
-                    counts[job_set] += len(configs)
-        print('CI jobs OK: ' + ', '.join('{} {}'.format(n, s) for s, n in counts.items()))
-    return 1 if errors else 0
-
-
-def compare(root, ref):
-    before, after = configurations(root, ref), configurations(root)
-    removed, added = before - after, after - before
-    for title, diff in (('removed', removed), ('added', added)):
-        for job, config in sorted(diff.elements()):
-            print('{}: {} ({})'.format(title, job, ', '.join('{}={}'.format(k, v) for k, v in config)))
-    print('{} configurations before, {} after; {} removed, {} added'.format(
-        sum(before.values()), sum(after.values()), sum(removed.values()), sum(added.values())))
-    return 1 if removed else 0
-
-
-def main():
-    parser = argparse.ArgumentParser(description=__doc__.splitlines()[0])
-    parser.add_argument('--root', default=REPO_ROOT, help='repository root')
-    group = parser.add_mutually_exclusive_group()
-    group.add_argument('--markdown', action='store_true', help='print the job table for the documentation')
-    group.add_argument('--compare', metavar='REF', help='list the configurations added or removed since REF')
-    args = parser.parse_args()
-    if args.markdown:
-        print('\n'.join(markdown(args.root)))
-        return 0
-    if args.compare:
-        return compare(args.root, args.compare)
-    return check(args.root)
-
-
-if __name__ == '__main__':
-    sys.exit(main())
@@ -1 +0,0 @@
-PyYAML==6.0.3