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Fix C++20/gcc-12 issues (Part 1) (#3379)
* 🔧 use proper GCC binary * 🔧 add more GCC warning flags * ⚗️ try fix from https://github.com/nlohmann/json/issues/3138#issuecomment-1015562666 * Fix custom allocator test build failures (C++20) Allocator tests fail to compile in C++20 mode with clang+MS STL due to missing copy constructors. * Fix test build failures due to missing noexcept (gcc-12) * alt_string has multiple member functions that should be marked noexcept. * nlohmann::ordered_map constructors can be noexcept. Compilation failures result from the warning flag -Werror=noexcept and gcc-12. * Disable broken comparison tests in C++20 mode Co-authored-by: Niels Lohmann <mail@nlohmann.me>
This commit is contained in:
Florian Albrechtskirchinger
committed by
GitHub
GitHub
parent
4a6e6ca8c7
commit
f208a9c19b
+20
-7
@@ -30,7 +30,7 @@ execute_process(COMMAND ${CPPCHECK_TOOL} --version OUTPUT_VARIABLE CPPCHECK_TOOL
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string(REGEX MATCH "[0-9]+(\\.[0-9]+)+" CPPCHECK_TOOL_VERSION "${CPPCHECK_TOOL_VERSION}")
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message(STATUS "🔖 Cppcheck ${CPPCHECK_TOOL_VERSION} (${CPPCHECK_TOOL})")
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find_program(GCC_TOOL NAMES g++-HEAD g++-11 g++-latest)
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find_program(GCC_TOOL NAMES g++-latest g++-HEAD g++-11)
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execute_process(COMMAND ${GCC_TOOL} --version OUTPUT_VARIABLE GCC_TOOL_VERSION ERROR_VARIABLE GCC_TOOL_VERSION)
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string(REGEX MATCH "[0-9]+(\\.[0-9]+)+" GCC_TOOL_VERSION "${GCC_TOOL_VERSION}")
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message(STATUS "🔖 GCC ${GCC_TOOL_VERSION} (${GCC_TOOL})")
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@@ -111,6 +111,7 @@ set(CLANG_CXXFLAGS "-std=c++11 \
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-Wno-reserved-identifier \
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")
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# Warning flags determined for GCC 12.0 (experimental) with https://github.com/nlohmann/gcc_flags:
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# Ignored GCC warnings:
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# -Wno-abi-tag We do not care about ABI tags.
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# -Wno-aggregate-return The library uses aggregate returns.
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@@ -150,16 +151,22 @@ set(GCC_CXXFLAGS "-std=c++11 \
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-Wanalyzer-shift-count-negative \
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-Wanalyzer-shift-count-overflow \
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-Wanalyzer-stale-setjmp-buffer \
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-Wanalyzer-tainted-allocation-size \
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-Wanalyzer-tainted-array-index \
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-Wanalyzer-tainted-divisor \
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-Wanalyzer-tainted-offset \
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-Wanalyzer-tainted-size \
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-Wanalyzer-too-complex \
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-Wanalyzer-unsafe-call-within-signal-handler \
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-Wanalyzer-use-after-free \
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-Wanalyzer-use-of-pointer-in-stale-stack-frame \
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-Wanalyzer-use-of-uninitialized-value \
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-Wanalyzer-write-to-const \
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-Wanalyzer-write-to-string-literal \
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-Warith-conversion \
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-Warray-bounds \
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-Warray-bounds=2 \
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-Warray-compare \
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-Warray-parameter=2 \
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-Wattribute-alias=2 \
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-Wattribute-warning \
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@@ -170,10 +177,15 @@ set(GCC_CXXFLAGS "-std=c++11 \
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-Wbuiltin-macro-redefined \
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-Wc++0x-compat \
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-Wc++11-compat \
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-Wc++11-extensions \
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-Wc++14-compat \
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-Wc++14-extensions \
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-Wc++17-compat \
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-Wc++17-extensions \
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-Wc++1z-compat \
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-Wc++20-compat \
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-Wc++20-extensions \
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-Wc++23-extensions \
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-Wc++2a-compat \
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-Wcannot-profile \
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-Wcast-align \
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@@ -191,6 +203,7 @@ set(GCC_CXXFLAGS "-std=c++11 \
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-Wconditionally-supported \
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-Wconversion \
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-Wconversion-null \
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-Wcoverage-invalid-line-number \
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-Wcoverage-mismatch \
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-Wcpp \
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-Wctad-maybe-unsupported \
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@@ -215,21 +228,16 @@ set(GCC_CXXFLAGS "-std=c++11 \
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-Wendif-labels \
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-Wenum-compare \
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-Wenum-conversion \
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-Wexceptions \
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-Wexpansion-to-defined \
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-Wextra \
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-Wextra-semi \
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-Wfloat-conversion \
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-Wfloat-equal \
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-Wformat-contains-nul \
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-Wformat-diag \
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-Wformat-extra-args \
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-Wformat-nonliteral \
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-Wformat-overflow=2 \
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-Wformat-security \
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-Wformat-signedness \
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-Wformat-truncation=2 \
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-Wformat-y2k \
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-Wformat-zero-length \
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-Wformat=2 \
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-Wframe-address \
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-Wfree-nonheap-object \
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@@ -239,12 +247,15 @@ set(GCC_CXXFLAGS "-std=c++11 \
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-Wignored-qualifiers \
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-Wimplicit-fallthrough=5 \
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-Winaccessible-base \
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-Winfinite-recursion \
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-Winherited-variadic-ctor \
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-Winit-list-lifetime \
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-Winit-self \
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-Winline \
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-Wint-in-bool-context \
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-Wint-to-pointer-cast \
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-Winterference-size \
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-Winvalid-imported-macros \
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-Winvalid-memory-model \
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-Winvalid-offsetof \
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-Winvalid-pch \
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@@ -267,6 +278,7 @@ set(GCC_CXXFLAGS "-std=c++11 \
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-Wmissing-field-initializers \
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-Wmissing-include-dirs \
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-Wmissing-profile \
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-Wmissing-requires \
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-Wmultichar \
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-Wmultiple-inheritance \
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-Wmultistatement-macros \
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@@ -282,6 +294,7 @@ set(GCC_CXXFLAGS "-std=c++11 \
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-Wnull-dereference \
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-Wodr \
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-Wold-style-cast \
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-Wopenacc-parallelism \
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-Wopenmp-simd \
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-Woverflow \
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-Woverlength-strings \
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