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_DEFAULT_CONSTRUCTIBLE_H 10 #define _LIBCPP___TYPE_TRAITS_IS_DEFAULT_CONSTRUCTIBLE_H 11 12 #include <__config> 13 #include <__type_traits/integral_constant.h> 14 #include <__type_traits/is_constructible.h> 15 16 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 17 # pragma GCC system_header 18 #endif 19 20 _LIBCPP_BEGIN_NAMESPACE_STD 21 22 template <class _Tp> 23 struct _LIBCPP_TEMPLATE_VIS is_default_constructible 24 : public is_constructible<_Tp> 25 {}; 26 27 #if _LIBCPP_STD_VER > 14 28 template <class _Tp> 29 inline constexpr bool is_default_constructible_v = is_default_constructible<_Tp>::value; 30 #endif 31 32 _LIBCPP_END_NAMESPACE_STD 33 34 #endif // _LIBCPP___TYPE_TRAITS_IS_DEFAULT_CONSTRUCTIBLE_H 35