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Fix throwing in constexpr and substr for gcc 5

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This commit is contained in:
Krystian Stasiowski
2020-03-09 17:47:40 -04:00
parent b7de5db7b8
commit e7e54b2665
3 changed files with 217 additions and 76 deletions
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14
include/boost/static_string/config.hpp
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@ -53,6 +53,7 @@
#define BOOST_STATIC_STRING_UNLIKELY
#define BOOST_STATIC_STRING_NODISCARD
#define BOOST_STATIC_STRING_NORETURN
#define BOOST_STATIC_STRING_NO_NORETURN
// unlikely
#if BOOST_STATIC_STRING_CHECK_FOR_ATTR(unlikely)
#undef BOOST_STATIC_STRING_UNLIKELY
@ -72,12 +73,15 @@
// noreturn
#if BOOST_STATIC_STRING_CHECK_FOR_ATTR(noreturn)
#undef BOOST_STATIC_STRING_NORETURN
#undef BOOST_STATIC_STRING_NO_NORETURN
#define BOOST_STATIC_STRING_NORETURN [[noreturn]]
#elif defined(_MSC_VER)
#undef BOOST_STATIC_STRING_NORETURN
#undef BOOST_STATIC_STRING_NO_NORETURN
#define BOOST_STATIC_STRING_NORETURN __declspec(noreturn)
#elif defined(__GNUC__) || defined(__clang__)
#undef BOOST_STATIC_STRING_NORETURN
#undef BOOST_STATIC_STRING_NO_NORETURN
#define BOOST_STATIC_STRING_NORETURN __attribute__((__noreturn__))
#endif
@ -184,6 +188,16 @@ defined(__clang__) && \
#define BOOST_STATIC_STRING_NO_PTR_COMP_FUNCTIONS
#endif
// In gcc-5, we cannot use throw expressions in a
// constexpr function. However, we have a workaround
// for this using constructors. Also, non-static member
// functions that return the class they are a member of
// causes an ICE during constant evaluation.
#if defined(__GNUC__) && (__GNUC__== 5) && \
defined(BOOST_STATIC_STRING_CPP14)
#define BOOST_STATIC_STRING_GCC5_BAD_CONSTEXPR
#endif
namespace boost {
namespace static_strings {