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_POINTER_H 10#define _LIBCPP___TYPE_TRAITS_REMOVE_POINTER_H 11 12#include <__config> 13 14#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 15# pragma GCC system_header 16#endif 17 18_LIBCPP_BEGIN_NAMESPACE_STD 19 20#if !defined(_LIBCPP_WORKAROUND_OBJCXX_COMPILER_INTRINSICS) && __has_builtin(__remove_pointer) 21template <class _Tp> 22struct remove_pointer { 23 using type _LIBCPP_NODEBUG = __remove_pointer(_Tp); 24}; 25 26template <class _Tp> 27using __remove_pointer_t = __remove_pointer(_Tp); 28#else 29// clang-format off 30template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_pointer {typedef _LIBCPP_NODEBUG _Tp type;}; 31template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_pointer<_Tp*> {typedef _LIBCPP_NODEBUG _Tp type;}; 32template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_pointer<_Tp* const> {typedef _LIBCPP_NODEBUG _Tp type;}; 33template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_pointer<_Tp* volatile> {typedef _LIBCPP_NODEBUG _Tp type;}; 34template <class _Tp> struct _LIBCPP_TEMPLATE_VIS remove_pointer<_Tp* const volatile> {typedef _LIBCPP_NODEBUG _Tp type;}; 35// clang-format on 36 37template <class _Tp> 38using __remove_pointer_t = typename remove_pointer<_Tp>::type; 39#endif // !defined(_LIBCPP_WORKAROUND_OBJCXX_COMPILER_INTRINSICS) && __has_builtin(__remove_pointer) 40 41#if _LIBCPP_STD_VER >= 14 42template <class _Tp> 43using remove_pointer_t = __remove_pointer_t<_Tp>; 44#endif 45 46_LIBCPP_END_NAMESPACE_STD 47 48#endif // _LIBCPP___TYPE_TRAITS_REMOVE_POINTER_H 49