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_MAYBE_CONST_H 10 #define _LIBCPP___TYPE_TRAITS_MAYBE_CONST_H 11 12 #include <__config> 13 #include <__type_traits/conditional.h> 14 15 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 16 # pragma GCC system_header 17 #endif 18 19 _LIBCPP_BEGIN_NAMESPACE_STD 20 21 template <bool _Const, class _Tp> 22 using __maybe_const = __conditional_t<_Const, const _Tp, _Tp>; 23 24 _LIBCPP_END_NAMESPACE_STD 25 26 #endif // _LIBCPP___TYPE_TRAITS_MAYBE_CONST_H 27