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___UTILITY_PIECEWISE_CONSTRUCT_H 10 #define _LIBCPP___UTILITY_PIECEWISE_CONSTRUCT_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 struct _LIBCPP_TEMPLATE_VIS piecewise_construct_t { explicit piecewise_construct_t() = default; }; 21 22 #if _LIBCPP_STD_VER >= 17 23 inline constexpr piecewise_construct_t piecewise_construct = piecewise_construct_t(); 24 #elif !defined(_LIBCPP_CXX03_LANG) 25 constexpr piecewise_construct_t piecewise_construct = piecewise_construct_t(); 26 #endif 27 28 _LIBCPP_END_NAMESPACE_STD 29 30 #endif // _LIBCPP___UTILITY_PIECEWISE_CONSTRUCT_H 31