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_TRIVIAL_H
10 #define _LIBCPP___TYPE_TRAITS_IS_TRIVIAL_H
11 
12 #include <__config>
13 #include <__type_traits/integral_constant.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 <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_trivial
22 #if __has_builtin(__is_trivial)
23     : public integral_constant<bool, __is_trivial(_Tp)>
24 #else
25     : integral_constant<bool, is_trivially_copyable<_Tp>::value &&
26                                  is_trivially_default_constructible<_Tp>::value>
27 #endif
28     {};
29 
30 #if _LIBCPP_STD_VER > 14
31 template <class _Tp>
32 inline constexpr bool is_trivial_v = is_trivial<_Tp>::value;
33 #endif
34 
35 _LIBCPP_END_NAMESPACE_STD
36 
37 #endif // _LIBCPP___TYPE_TRAITS_IS_TRIVIAL_H
38