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Fix constexpr when using libstdc++

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This commit is contained in:
Krystian Stasiowski
2020-02-01 23:18:20 -05:00
parent 4d8d35acc8
commit 24c7f1e027
2 changed files with 15 additions and 19 deletions
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20
include/boost/static_string/config.hpp
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@ -146,10 +146,12 @@ defined(__clang__) && \
#define BOOST_STATIC_STRING_CPP14_CONSTEXPR
#endif
// For clang and msvc, constexpr does not work with library
// comparison function objects.
#if (defined(__clang__) && (__clang_major__ < 9)) || \
(defined(_MSVC_LANG) && !defined(BOOST_STATIC_STRING_CPP20))
// These are for compiler/library configurations
// that cannot use the library comparison function
// objects at all in constant expresssions. In these
// cases, we use whatever will make more constexpr work.
#if (defined(__clang__) && defined(__GLIBCXX__) && \
((__GLIBCXX__ > 20181206) && (__GLIBCXX__ < 20190812)))
#define BOOST_STATIC_STRING_NO_PTR_COMP_FUNCTIONS
#endif
@ -165,16 +167,6 @@ defined(__clang__) && \
#include <string_view>
#endif
#ifdef __clang__
#include <new>
#define STRING_VALUE(...) STRING_VALUE__(__VA_ARGS__)
#define STRING_VALUE__(...) #__VA_ARGS__
#pragma message("STATIC STRING CLANG DEBUG INFO")
#pragma message("LIBSTDCXX OLD: " STRING_VALUE(__GLIBCPP__))
#pragma message("LIBSTDCXX NEW: " STRING_VALUE(__GLIBCXX__))
#pragma message("LIBCXX: " STRING_VALUE(_LIBCPP_VERSION))
#endif
namespace boost {
namespace static_string {