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// -*- 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___CXX03___FUNCTIONAL_BINARY_NEGATE_H
#define _LIBCPP___CXX03___FUNCTIONAL_BINARY_NEGATE_H
#include <__cxx03/__config>
#include <__cxx03/__functional/binary_function.h>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
template <class _Predicate>
class _LIBCPP_TEMPLATE_VIS binary_negate
: public __binary_function<typename _Predicate::first_argument_type,
typename _Predicate::second_argument_type,
bool> {
_Predicate __pred_;
public:
_LIBCPP_HIDE_FROM_ABI explicit binary_negate(const _Predicate& __pred) : __pred_(__pred) {}
_LIBCPP_HIDE_FROM_ABI bool operator()(const typename _Predicate::first_argument_type& __x,
const typename _Predicate::second_argument_type& __y) const {
return !__pred_(__x, __y);
}
};
template <class _Predicate>
inline _LIBCPP_HIDE_FROM_ABI binary_negate<_Predicate> not2(const _Predicate& __pred) {
return binary_negate<_Predicate>(__pred);
}
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP___CXX03___FUNCTIONAL_BINARY_NEGATE_H
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