1 //===----------------------------------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #ifndef _LIBCPP___TYPE_TRAITS_IS_CONSTANT_EVALUATED_H 10 #define _LIBCPP___TYPE_TRAITS_IS_CONSTANT_EVALUATED_H 11 12 #include <__config> 13 14 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 15 # pragma GCC system_header 16 #endif 17 18 _LIBCPP_BEGIN_NAMESPACE_STD 19 20 #if _LIBCPP_STD_VER > 17 21 _LIBCPP_INLINE_VISIBILITY is_constant_evaluated()22inline constexpr bool is_constant_evaluated() noexcept { 23 return __builtin_is_constant_evaluated(); 24 } 25 #endif 26 27 _LIBCPP_HIDE_FROM_ABI inline _LIBCPP_CONSTEXPR __libcpp_is_constant_evaluated()28bool __libcpp_is_constant_evaluated() _NOEXCEPT { return __builtin_is_constant_evaluated(); } 29 30 _LIBCPP_END_NAMESPACE_STD 31 32 #endif // _LIBCPP___TYPE_TRAITS_IS_CONSTANT_EVALUATED_H 33