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Niels Lohmann
30417e9e74
basic_string_view::_S_compare stores the difference of two lengths in a signed difference_type on purpose, which -fsanitize=integer reports for every comparison with a shorter view (test-json_view_cpp17). Signed-off-by: Niels Lohmann <mail@nlohmann.me>
15 lines
1.0 KiB
Plaintext
15 lines
1.0 KiB
Plaintext
# Sanitizer ignore list for ci_test_clang_sanitizer (-fsanitize-ignorelist).
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#
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# libstdc++ 14's <format> declares `_Scanner(basic_string_view<_CharT>, size_t __nargs = -1)`, so every std::format
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# call converts -1 to size_t, which -fsanitize=integer reports as implicit-integer-sign-change. This is
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# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119429, not a bug in this library. Only that check and only <format> are
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# excluded, so implicit sign changes in the library and the tests are still reported.
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#
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# libstdc++'s <string_view> compares two views of different lengths through `_S_compare(size_type __n1, size_type
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# __n2)`, which stores `__n1 - __n2` in a signed difference_type and clamps it to int. Any comparison with a shorter
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# view wraps that subtraction on purpose, and -fsanitize=integer reports it as implicit-integer-sign-change. json_view
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# compares keys as string views, so the same check is excluded for <string_view> as well.
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[implicit-integer-sign-change]
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src:*/include/c++/*/format
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src:*/include/c++/*/string_view
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