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Detect relaxed constexpr rules for gcc versions 

llvm-svn: 250802
This commit is contained in:
Marshall Clow 2015-10-20 07:37:11 +00:00
parent 79be9e8cb5
commit 1c4526757e
1 changed files with 4 additions and 1 deletions
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5
libcxx/include/__config
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@ -451,8 +451,11 @@ namespace std {
#define _LIBCPP_HAS_NO_CONSTEXPR
#endif
// No version of GCC supports relaxed constexpr rules
// Determine if GCC supports relaxed constexpr
#if !defined(__cpp_constexpr) || __cpp_constexpr < 201304L
#define _LIBCPP_HAS_NO_CXX14_CONSTEXPR
#endif
// GCC 5 will support variable templates
#define _LIBCPP_HAS_NO_VARIABLE_TEMPLATES