| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef _LIBCPP___TYPE_TRAITS_REMOVE_CVREF_H |
| #define _LIBCPP___TYPE_TRAITS_REMOVE_CVREF_H |
| |
| #include <__config> |
| #include <__type_traits/is_same.h> |
| #include <__type_traits/remove_cv.h> |
| #include <__type_traits/remove_reference.h> |
| |
| #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| # pragma GCC system_header |
| #endif |
| |
| _LIBCPP_BEGIN_NAMESPACE_STD |
| |
| template <class _Tp> |
| using __uncvref_t _LIBCPP_NODEBUG = typename remove_cv<typename remove_reference<_Tp>::type>::type; |
| |
| template <class _Tp, class _Up> |
| struct __is_same_uncvref : _IsSame<__uncvref_t<_Tp>, __uncvref_t<_Up> > {}; |
| |
| #if _LIBCPP_STD_VER > 17 |
| // remove_cvref - same as __uncvref |
| template <class _Tp> |
| struct remove_cvref { |
| using type _LIBCPP_NODEBUG = __uncvref_t<_Tp>; |
| }; |
| |
| template <class _Tp> using remove_cvref_t = typename remove_cvref<_Tp>::type; |
| #endif |
| |
| _LIBCPP_END_NAMESPACE_STD |
| |
| #endif // _LIBCPP___TYPE_TRAITS_REMOVE_CVREF_H |