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Fix detection of __datasizeof with Clang. (#94174)

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The `__has_extension` builtin macro is the same as __has_feature when
-pedantic-errors is specified, which means we don't get the right
information about __datasizeof being available.

Using __has_keyword (really !__is_identifier) will tell the truth
even when -pedantic-errors is specified.

This means we always have __datasizeof under Clang
This commit is contained in:
Eric
2024-06-05 18:29:46 -04:00
committed by GitHub
parent 55d2fffdae
commit 1d75c59ace
1 changed files with 1 additions and 1 deletions
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2
libcxx/include/__type_traits/datasizeof.h
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@@ -26,7 +26,7 @@
_LIBCPP_BEGIN_NAMESPACE_STD
#if __has_extension(datasizeof)
#if __has_keyword(__datasizeof) || __has_extension(datasizeof)
template <class _Tp>
inline const size_t __datasizeof_v = __datasizeof(_Tp);
#else