Pirama Arumuga Nainar | d285ad0 | 2022-02-08 09:26:56 -0800 | [diff] [blame] | 1 | // -*- C++ -*- |
| 2 | //===----------------------------------------------------------------------===// |
| 3 | // |
| 4 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 5 | // See https://llvm.org/LICENSE.txt for license information. |
| 6 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | |
| 10 | #ifndef _LIBCPP___FUNCTIONAL_BINARY_NEGATE_H |
| 11 | #define _LIBCPP___FUNCTIONAL_BINARY_NEGATE_H |
| 12 | |
| 13 | #include <__config> |
| 14 | #include <__functional/binary_function.h> |
| 15 | |
| 16 | #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| 17 | #pragma GCC system_header |
| 18 | #endif |
| 19 | |
| 20 | _LIBCPP_BEGIN_NAMESPACE_STD |
| 21 | |
| 22 | #if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_NEGATORS) |
| 23 | |
| 24 | template <class _Predicate> |
| 25 | class _LIBCPP_TEMPLATE_VIS _LIBCPP_DEPRECATED_IN_CXX17 binary_negate |
| 26 | : public binary_function<typename _Predicate::first_argument_type, |
| 27 | typename _Predicate::second_argument_type, |
| 28 | bool> |
| 29 | { |
| 30 | _Predicate __pred_; |
| 31 | public: |
| 32 | _LIBCPP_INLINE_VISIBILITY explicit _LIBCPP_CONSTEXPR_AFTER_CXX11 |
| 33 | binary_negate(const _Predicate& __pred) : __pred_(__pred) {} |
| 34 | |
| 35 | _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY |
| 36 | bool operator()(const typename _Predicate::first_argument_type& __x, |
| 37 | const typename _Predicate::second_argument_type& __y) const |
| 38 | {return !__pred_(__x, __y);} |
| 39 | }; |
| 40 | |
| 41 | template <class _Predicate> |
| 42 | _LIBCPP_DEPRECATED_IN_CXX17 inline _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY |
| 43 | binary_negate<_Predicate> |
| 44 | not2(const _Predicate& __pred) {return binary_negate<_Predicate>(__pred);} |
| 45 | |
| 46 | #endif // _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_NEGATORS) |
| 47 | |
| 48 | _LIBCPP_END_NAMESPACE_STD |
| 49 | |
| 50 | #endif // _LIBCPP___FUNCTIONAL_BINARY_NEGATE_H |