1fe6060f1SDimitry Andric // -*- C++ -*- 2fe6060f1SDimitry Andric //===----------------------------------------------------------------------===// 3fe6060f1SDimitry Andric // 4fe6060f1SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 5fe6060f1SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 6fe6060f1SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 7fe6060f1SDimitry Andric // 8fe6060f1SDimitry Andric //===----------------------------------------------------------------------===// 9fe6060f1SDimitry Andric 10fe6060f1SDimitry Andric #ifndef _LIBCPP___FUNCTIONAL_BINARY_NEGATE_H 11fe6060f1SDimitry Andric #define _LIBCPP___FUNCTIONAL_BINARY_NEGATE_H 12fe6060f1SDimitry Andric 13fe6060f1SDimitry Andric #include <__config> 14fe6060f1SDimitry Andric #include <__functional/binary_function.h> 15fe6060f1SDimitry Andric 16fe6060f1SDimitry Andric #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 17fe6060f1SDimitry Andric # pragma GCC system_header 18fe6060f1SDimitry Andric #endif 19fe6060f1SDimitry Andric 20fe6060f1SDimitry Andric _LIBCPP_BEGIN_NAMESPACE_STD 21fe6060f1SDimitry Andric 22fe6060f1SDimitry Andric #if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_NEGATORS) 23fe6060f1SDimitry Andric 24fe6060f1SDimitry Andric template <class _Predicate> 25fe6060f1SDimitry Andric class _LIBCPP_TEMPLATE_VIS _LIBCPP_DEPRECATED_IN_CXX17 binary_negate 2681ad6265SDimitry Andric : public __binary_function<typename _Predicate::first_argument_type, 27fe6060f1SDimitry Andric typename _Predicate::second_argument_type, 28*cb14a3feSDimitry Andric bool> { 29fe6060f1SDimitry Andric _Predicate __pred_; 30fe6060f1SDimitry Andric 31*cb14a3feSDimitry Andric public: binary_negate(const _Predicate & __pred)32*cb14a3feSDimitry Andric _LIBCPP_HIDE_FROM_ABI explicit _LIBCPP_CONSTEXPR_SINCE_CXX14 binary_negate(const _Predicate& __pred) 33*cb14a3feSDimitry Andric : __pred_(__pred) {} 34*cb14a3feSDimitry Andric operator()35*cb14a3feSDimitry Andric _LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI bool operator()( 36*cb14a3feSDimitry Andric const typename _Predicate::first_argument_type& __x, const typename _Predicate::second_argument_type& __y) const { 37*cb14a3feSDimitry Andric return !__pred_(__x, __y); 38*cb14a3feSDimitry Andric } 39fe6060f1SDimitry Andric }; 40fe6060f1SDimitry Andric 41fe6060f1SDimitry Andric template <class _Predicate> 42*cb14a3feSDimitry Andric _LIBCPP_DEPRECATED_IN_CXX17 inline _LIBCPP_CONSTEXPR_SINCE_CXX14 _LIBCPP_HIDE_FROM_ABI binary_negate<_Predicate> not2(const _Predicate & __pred)43*cb14a3feSDimitry Andricnot2(const _Predicate& __pred) { 44*cb14a3feSDimitry Andric return binary_negate<_Predicate>(__pred); 45*cb14a3feSDimitry Andric } 46fe6060f1SDimitry Andric 47fe6060f1SDimitry Andric #endif // _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_NEGATORS) 48fe6060f1SDimitry Andric 49fe6060f1SDimitry Andric _LIBCPP_END_NAMESPACE_STD 50fe6060f1SDimitry Andric 51fe6060f1SDimitry Andric #endif // _LIBCPP___FUNCTIONAL_BINARY_NEGATE_H 52