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-Wattributes visibility warning with some GCC versions (#1975)

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Alexey Ochapov 2020-11-05 04:11:31 +03:00 committed by GitHub
parent cba5970cd8
commit 6a2495c840
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1 changed files with 10 additions and 1 deletions
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11
include/fmt/format.h
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@ -69,6 +69,13 @@
# define FMT_NOINLINE
#endif
// Special definition specific to GCC only
#if FMT_GCC_VERSION
# define FMT_GCC_VISIBILITY_HIDDEN __attribute__((visibility("hidden")))
#else
# define FMT_GCC_VISIBILITY_HIDDEN
#endif
#if __cplusplus == 201103L || __cplusplus == 201402L
# if defined(__INTEL_COMPILER) || defined(__PGI)
# define FMT_FALLTHROUGH
@ -3200,8 +3207,10 @@ FMT_CONSTEXPR basic_string_view<Char> compile_string_to_view(
#define FMT_STRING_IMPL(s, base) \
[] { \
/* Use a hidden visibility as workaround for some GCC, see */ \
/* https://github.com/fmtlib/fmt/issues/1973 for details */ \
/* Use a macro-like name to avoid shadowing warnings. */ \
struct FMT_COMPILE_STRING : base { \
struct FMT_GCC_VISIBILITY_HIDDEN FMT_COMPILE_STRING : base { \
using char_type = fmt::remove_cvref_t<decltype(s[0])>; \
FMT_MAYBE_UNUSED FMT_CONSTEXPR \
operator fmt::basic_string_view<char_type>() const { \