xref: /openbsd-src/gnu/llvm/libcxx/include/__functional/binary_negate.h (revision 4bdff4bed0e3d54e55670334c7d0077db4170f86)
176d0caaeSpatrick // -*- C++ -*-
276d0caaeSpatrick //===----------------------------------------------------------------------===//
376d0caaeSpatrick //
476d0caaeSpatrick // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
576d0caaeSpatrick // See https://llvm.org/LICENSE.txt for license information.
676d0caaeSpatrick // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
776d0caaeSpatrick //
876d0caaeSpatrick //===----------------------------------------------------------------------===//
976d0caaeSpatrick 
1076d0caaeSpatrick #ifndef _LIBCPP___FUNCTIONAL_BINARY_NEGATE_H
1176d0caaeSpatrick #define _LIBCPP___FUNCTIONAL_BINARY_NEGATE_H
1276d0caaeSpatrick 
1376d0caaeSpatrick #include <__config>
1476d0caaeSpatrick #include <__functional/binary_function.h>
1576d0caaeSpatrick 
1676d0caaeSpatrick #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
1776d0caaeSpatrick #  pragma GCC system_header
1876d0caaeSpatrick #endif
1976d0caaeSpatrick 
2076d0caaeSpatrick _LIBCPP_BEGIN_NAMESPACE_STD
2176d0caaeSpatrick 
2276d0caaeSpatrick #if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_NEGATORS)
2376d0caaeSpatrick 
2476d0caaeSpatrick template <class _Predicate>
2576d0caaeSpatrick class _LIBCPP_TEMPLATE_VIS _LIBCPP_DEPRECATED_IN_CXX17 binary_negate
26*4bdff4beSrobert     : public __binary_function<typename _Predicate::first_argument_type,
2776d0caaeSpatrick                                typename _Predicate::second_argument_type,
2876d0caaeSpatrick                                bool>
2976d0caaeSpatrick {
3076d0caaeSpatrick     _Predicate __pred_;
3176d0caaeSpatrick public:
32*4bdff4beSrobert     _LIBCPP_INLINE_VISIBILITY explicit _LIBCPP_CONSTEXPR_SINCE_CXX14
binary_negate(const _Predicate & __pred)3376d0caaeSpatrick     binary_negate(const _Predicate& __pred) : __pred_(__pred) {}
3476d0caaeSpatrick 
35*4bdff4beSrobert     _LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_INLINE_VISIBILITY
operator()3676d0caaeSpatrick     bool operator()(const typename _Predicate::first_argument_type& __x,
3776d0caaeSpatrick                     const typename _Predicate::second_argument_type& __y) const
3876d0caaeSpatrick         {return !__pred_(__x, __y);}
3976d0caaeSpatrick };
4076d0caaeSpatrick 
4176d0caaeSpatrick template <class _Predicate>
42*4bdff4beSrobert _LIBCPP_DEPRECATED_IN_CXX17 inline _LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_INLINE_VISIBILITY
4376d0caaeSpatrick binary_negate<_Predicate>
not2(const _Predicate & __pred)4476d0caaeSpatrick not2(const _Predicate& __pred) {return binary_negate<_Predicate>(__pred);}
4576d0caaeSpatrick 
4676d0caaeSpatrick #endif // _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_NEGATORS)
4776d0caaeSpatrick 
4876d0caaeSpatrick _LIBCPP_END_NAMESPACE_STD
4976d0caaeSpatrick 
5076d0caaeSpatrick #endif // _LIBCPP___FUNCTIONAL_BINARY_NEGATE_H
51