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// Copyright (c) 2006-2018 Maxim Khizhinsky
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE or copy at http://www.boost.org/LICENSE_1_0.txt)
#ifndef CDSLIB_DETAILS_BINARY_FUNCTOR_WRAPPER_H
#define CDSLIB_DETAILS_BINARY_FUNCTOR_WRAPPER_H
#include <cds/details/defs.h>
//@cond
namespace cds { namespace details {
template <typename ReturnType, typename Functor, typename ArgType, typename Accessor>
struct binary_functor_wrapper {
typedef ReturnType return_type;
typedef Functor functor_type;
typedef ArgType argument_type;
typedef Accessor accessor;
return_type operator()( argument_type const& a1, argument_type const& a2 ) const
{
return functor_type()( accessor()( a1 ), accessor()( a2 ));
}
template <typename Q>
return_type operator()( argument_type const& a, Q const& q ) const
{
return functor_type()( accessor()(a), q );
}
template <typename Q>
return_type operator()( Q const& q, argument_type const& a ) const
{
return functor_type()( q, accessor()(a));
}
template <typename Q1, typename Q2>
return_type operator()( Q1 const& q1, Q2 const& q2 ) const
{
return functor_type()( q1, q2 );
}
};
template <typename ArgType, typename Predicate, typename Accessor>
using predicate_wrapper = binary_functor_wrapper< bool, Predicate, ArgType, Accessor>;
template <typename ArgType, typename Compare, typename Accessor>
using compare_wrapper = binary_functor_wrapper< int, Compare, ArgType, Accessor>;
}} // namespace cds::details
//@endcond
#endif // #ifndef CDSLIB_DETAILS_BINARY_FUNCTOR_WRAPPER_H
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