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Suppress a false positive in clang-tidy

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This commit is contained in:
Victor Zverovich
2025-09-01 11:09:17 -07:00
parent 79c7f8a70b
commit 619b3a5aa0
2 changed files with 27 additions and 16 deletions
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2
include/fmt/format-inl.h
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@@ -1583,7 +1583,7 @@ template <typename F> class apple_file : public file_base<F> {
void init_buffer() {
if (this->file_->_p) return;
// Force buffer initialization by placing and removing a char in a buffer.
putc_unlocked(0, this->file_);
if (!FMT_CLANG_ANALYZER) putc_unlocked(0, this->file_);
--this->file_->_p;
++this->file_->_w;
}

41
include/fmt/format.h
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@@ -173,6 +173,12 @@ template <typename T> struct iterator_traits<fmt::basic_appender<T>> {
# define FMT_THROW(x) ::fmt::assert_fail(__FILE__, __LINE__, (x).what())
#endif
#ifdef __clang_analyzer__
# define FMT_CLANG_ANALYZER 1
#else
# define FMT_CLANG_ANALYZER 0
#endif
// Defining FMT_REDUCE_INT_INSTANTIATIONS to 1, will reduce the number of
// integer formatter template instantiations to just one by only using the
// largest integer type. This results in a reduction in binary size but will
@@ -4213,21 +4219,26 @@ class format_int {
inline auto str() const -> std::string { return {str_, size()}; }
};
#define FMT_STRING_IMPL(s, base) \
[] { \
/* Use the hidden visibility as a workaround for a GCC bug (#1973). */ \
/* Use a macro-like name to avoid shadowing warnings. */ \
struct FMT_VISIBILITY("hidden") FMT_COMPILE_STRING : base { \
using char_type = fmt::remove_cvref_t<decltype(s[0])>; \
constexpr explicit operator fmt::basic_string_view<char_type>() const { \
return fmt::detail::compile_string_to_view<char_type>(s); \
} \
}; \
using FMT_STRING_VIEW = \
fmt::basic_string_view<typename FMT_COMPILE_STRING::char_type>; \
fmt::detail::ignore_unused(FMT_STRING_VIEW(FMT_COMPILE_STRING())); \
return FMT_COMPILE_STRING(); \
}()
#if FMT_CLANG_ANALYZER
# define FMT_STRING_IMPL(s, base) s
#else
# define FMT_STRING_IMPL(s, base) \
[] { \
/* Use the hidden visibility as a workaround for a GCC bug (#1973). */ \
/* Use a macro-like name to avoid shadowing warnings. */ \
struct FMT_VISIBILITY("hidden") FMT_COMPILE_STRING : base { \
using char_type = fmt::remove_cvref_t<decltype(s[0])>; \
constexpr explicit operator fmt::basic_string_view<char_type>() \
const { \
return fmt::detail::compile_string_to_view<char_type>(s); \
} \
}; \
using FMT_STRING_VIEW = \
fmt::basic_string_view<typename FMT_COMPILE_STRING::char_type>; \
fmt::detail::ignore_unused(FMT_STRING_VIEW(FMT_COMPILE_STRING())); \
return FMT_COMPILE_STRING(); \
}()
#endif // FMT_CLANG_ANALYZER
/**
* Constructs a legacy compile-time format string from a string literal `s`.