diff options
| -rw-r--r-- | libstdc++-v3/ChangeLog | 5 | ||||
| -rw-r--r-- | libstdc++-v3/include/std/type_traits | 3 | ||||
| -rw-r--r-- | libstdc++-v3/include/std/version | 3 |
3 files changed, 11 insertions, 0 deletions
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog index 4c2470c..af7cf3e 100644 --- a/libstdc++-v3/ChangeLog +++ b/libstdc++-v3/ChangeLog @@ -1,3 +1,8 @@ +2019-01-11 Jakub Jelinek <jakub@redhat.com> + + * include/std/type_traits (__cpp_lib_is_constant_evaluated): Define. + * include/std/version (__cpp_lib_is_constant_evaluated): Define. + 2019-01-11 Jonathan Wakely <jwakely@redhat.com> PR libstdc++/88802 diff --git a/libstdc++-v3/include/std/type_traits b/libstdc++-v3/include/std/type_traits index 275a7f4..2df89ac 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -3030,6 +3030,9 @@ template <typename _From, typename _To> using unwrap_ref_decay_t = typename unwrap_ref_decay<_Tp>::type; #ifdef _GLIBCXX_HAVE_BUILTIN_IS_CONSTANT_EVALUATED + +#define __cpp_lib_is_constant_evaluated 201811L + constexpr inline bool is_constant_evaluated() noexcept { return __builtin_is_constant_evaluated(); } diff --git a/libstdc++-v3/include/std/version b/libstdc++-v3/include/std/version index e11ae3a..903b75b 100644 --- a/libstdc++-v3/include/std/version +++ b/libstdc++-v3/include/std/version @@ -142,6 +142,9 @@ #if __cplusplus > 201703L // c++2a +#ifdef _GLIBCXX_HAVE_BUILTIN_IS_CONSTANT_EVALUATED +# define __cpp_lib_is_constant_evaluated 201811L +#endif #define __cpp_lib_list_remove_return_type 201806L #endif // C++2a #endif // C++17 |