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> 31 struct _LIBCPP_TEMPLATE_VIS remove_extent { 32 typedef _Tp type; 33 }; 34 template <class _Tp> 35 struct _LIBCPP_TEMPLATE_VIS remove_extent<_Tp[]> { 36 typedef _Tp type; 37 }; 38 template <class _Tp, size_t _Np> 39 struct _LIBCPP_TEMPLATE_VIS remove_extent<_Tp[_Np]> { 40 typedef _Tp type; 41 }; 42 43 template <class _Tp> 44 using __remove_extent_t = typename remove_extent<_Tp>::type; 45 #endif // __has_builtin(__remove_extent) 46 47 #if _LIBCPP_STD_VER >= 14 48 template <class _Tp> 49 using remove_extent_t = __remove_extent_t<_Tp>; 50 #endif 51 52 _LIBCPP_END_NAMESPACE_STD 53 54 #endif // _LIBCPP___TYPE_TRAITS_REMOVE_EXTENT_H 55