| //===----------------------------------------------------------------------===// |
| // |
| // 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_IS_MEMBER_FUNCTION_POINTER_H |
| #define _LIBCPP___TYPE_TRAITS_IS_MEMBER_FUNCTION_POINTER_H |
| |
| #include <__config> |
| #include <__type_traits/integral_constant.h> |
| #include <__type_traits/is_function.h> |
| #include <__type_traits/remove_cv.h> |
| #include <cstddef> |
| |
| #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| # pragma GCC system_header |
| #endif |
| |
| _LIBCPP_BEGIN_NAMESPACE_STD |
| |
| template <class _Tp> struct __libcpp_is_member_pointer { |
| enum { |
| __is_member = false, |
| __is_func = false, |
| __is_obj = false |
| }; |
| }; |
| template <class _Tp, class _Up> struct __libcpp_is_member_pointer<_Tp _Up::*> { |
| enum { |
| __is_member = true, |
| __is_func = is_function<_Tp>::value, |
| __is_obj = !__is_func, |
| }; |
| }; |
| |
| #if __has_builtin(__is_member_function_pointer) |
| |
| template<class _Tp> |
| struct _LIBCPP_TEMPLATE_VIS is_member_function_pointer |
| : _BoolConstant<__is_member_function_pointer(_Tp)> { }; |
| |
| #if _LIBCPP_STD_VER > 14 |
| template <class _Tp> |
| inline constexpr bool is_member_function_pointer_v = __is_member_function_pointer(_Tp); |
| #endif |
| |
| #else // __has_builtin(__is_member_function_pointer) |
| |
| template <class _Tp> struct _LIBCPP_TEMPLATE_VIS is_member_function_pointer |
| : public _BoolConstant< __libcpp_is_member_pointer<__remove_cv_t<_Tp> >::__is_func > {}; |
| |
| #if _LIBCPP_STD_VER > 14 |
| template <class _Tp> |
| inline constexpr bool is_member_function_pointer_v = is_member_function_pointer<_Tp>::value; |
| #endif |
| |
| #endif // __has_builtin(__is_member_function_pointer) |
| |
| _LIBCPP_END_NAMESPACE_STD |
| |
| #endif // _LIBCPP___TYPE_TRAITS_IS_MEMBER_FUNCTION_POINTER_H |