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_NOTHROW_MOVE_CONSTRUCTIBLE_H
10 #define _LIBCPP___TYPE_TRAITS_IS_NOTHROW_MOVE_CONSTRUCTIBLE_H
11 
12 #include <__config>
13 #include <__type_traits/add_rvalue_reference.h>
14 #include <__type_traits/integral_constant.h>
15 #include <__type_traits/is_nothrow_constructible.h>
16 
17 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
18 #  pragma GCC system_header
19 #endif
20 
21 _LIBCPP_BEGIN_NAMESPACE_STD
22 
23 // TODO: remove this implementation once https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106611 is fixed
24 #ifndef _LIBCPP_COMPILER_GCC
25 
26 template <class _Tp>
27 struct _LIBCPP_TEMPLATE_VIS is_nothrow_move_constructible
28     : public integral_constant<bool, __is_nothrow_constructible(_Tp, __add_rvalue_reference_t<_Tp>)> {};
29 
30 #else // _LIBCPP_COMPILER_GCC
31 
32 template <class _Tp>
33 struct _LIBCPP_TEMPLATE_VIS is_nothrow_move_constructible
34     : public is_nothrow_constructible<_Tp, __add_rvalue_reference_t<_Tp> > {};
35 
36 #endif // _LIBCPP_COMPILER_GCC
37 
38 #if _LIBCPP_STD_VER >= 17
39 template <class _Tp>
40 inline constexpr bool is_nothrow_move_constructible_v = is_nothrow_move_constructible<_Tp>::value;
41 #endif
42 
43 _LIBCPP_END_NAMESPACE_STD
44 
45 #endif // _LIBCPP___TYPE_TRAITS_IS_NOTHROW_MOVE_CONSTRUCTIBLE_H
46