| // -*- C++ -*- |
| //===----------------------------------------------------------------------===// |
| // |
| // 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___FUNCTIONAL_BINARY_NEGATE_H |
| #define _LIBCPP___FUNCTIONAL_BINARY_NEGATE_H |
| |
| #include <__config> |
| #include <__functional/binary_function.h> |
| |
| #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| #pragma GCC system_header |
| #endif |
| |
| _LIBCPP_BEGIN_NAMESPACE_STD |
| |
| #if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_NEGATORS) |
| |
| template <class _Predicate> |
| class _LIBCPP_TEMPLATE_VIS _LIBCPP_DEPRECATED_IN_CXX17 binary_negate |
| : public binary_function<typename _Predicate::first_argument_type, |
| typename _Predicate::second_argument_type, |
| bool> |
| { |
| _Predicate __pred_; |
| public: |
| _LIBCPP_INLINE_VISIBILITY explicit _LIBCPP_CONSTEXPR_AFTER_CXX11 |
| binary_negate(const _Predicate& __pred) : __pred_(__pred) {} |
| |
| _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY |
| bool operator()(const typename _Predicate::first_argument_type& __x, |
| const typename _Predicate::second_argument_type& __y) const |
| {return !__pred_(__x, __y);} |
| }; |
| |
| template <class _Predicate> |
| _LIBCPP_DEPRECATED_IN_CXX17 inline _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY |
| binary_negate<_Predicate> |
| not2(const _Predicate& __pred) {return binary_negate<_Predicate>(__pred);} |
| |
| #endif // _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_NEGATORS) |
| |
| _LIBCPP_END_NAMESPACE_STD |
| |
| #endif // _LIBCPP___FUNCTIONAL_BINARY_NEGATE_H |
