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_REMOVE_EXTENT_H
10 #define _LIBCPP___TYPE_TRAITS_REMOVE_EXTENT_H
11 
12 #include <__config>
13 #include <cstddef>
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 #if __has_builtin(__remove_extent)
22 template <class _Tp>
23 struct remove_extent {
24   using type _LIBCPP_NODEBUG = __remove_extent(_Tp);
25 };
26 
27 template <class _Tp>
28 using __remove_extent_t = __remove_extent(_Tp);
29 #else
30 template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_extent
31     {typedef _Tp type;};
32 template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_extent<_Tp[]>
33     {typedef _Tp type;};
34 template <class _Tp, size_t _Np> struct _LIBCPP_TEMPLATE_VIS remove_extent<_Tp[_Np]>
35     {typedef _Tp type;};
36 
37 template <class _Tp>
38 using __remove_extent_t = typename remove_extent<_Tp>::type;
39 #endif // __has_builtin(__remove_extent)
40 
41 #if _LIBCPP_STD_VER > 11
42 template <class _Tp> using remove_extent_t = __remove_extent_t<_Tp>;
43 #endif
44 
45 _LIBCPP_END_NAMESPACE_STD
46 
47 #endif // _LIBCPP___TYPE_TRAITS_REMOVE_EXTENT_H
48