Chris@102: ///////////////////////////////////////////////////////////////////////////////
Chris@102: //
Chris@102: // (C) Copyright Ion Gaztanaga 2014-2014. Distributed under the Boost
Chris@102: // Software License, Version 1.0. (See accompanying file
Chris@102: // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@102: //
Chris@102: // See http://www.boost.org/libs/container for documentation.
Chris@102: //
Chris@102: ///////////////////////////////////////////////////////////////////////////////
Chris@102: 
Chris@102: #ifndef BOOST_CONTAINER_DETAIL_COMPARE_FUNCTORS_HPP
Chris@102: #define BOOST_CONTAINER_DETAIL_COMPARE_FUNCTORS_HPP
Chris@102: 
Chris@102: #ifndef BOOST_CONFIG_HPP
Chris@102: #  include <boost/config.hpp>
Chris@102: #endif
Chris@102: 
Chris@102: #if defined(BOOST_HAS_PRAGMA_ONCE)
Chris@102: #  pragma once
Chris@102: #endif
Chris@102: 
Chris@102: namespace boost {
Chris@102: namespace container {
Chris@102: 
Chris@102: template<class Allocator>
Chris@102: class equal_to_value
Chris@102: {
Chris@102:    typedef typename Allocator::value_type value_type;
Chris@102:    const value_type &t_;
Chris@102: 
Chris@102:    public:
Chris@102:    explicit equal_to_value(const value_type &t)
Chris@102:       :  t_(t)
Chris@102:    {}
Chris@102: 
Chris@102:    bool operator()(const value_type &t)const
Chris@102:    {  return t_ == t;   }
Chris@102: };
Chris@102: 
Chris@102: template<class Node, class Pred>
Chris@102: struct value_to_node_compare
Chris@102:    :  Pred
Chris@102: {
Chris@102:    typedef Pred predicate_type;
Chris@102:    typedef Node node_type;
Chris@102: 
Chris@102:    value_to_node_compare()
Chris@102:       : Pred()
Chris@102:    {}
Chris@102: 
Chris@102:    explicit value_to_node_compare(Pred pred)
Chris@102:       :  Pred(pred)
Chris@102:    {}
Chris@102: 
Chris@102:    bool operator()(const Node &a, const Node &b) const
Chris@102:    {  return static_cast<const Pred&>(*this)(a.m_data, b.m_data);  }
Chris@102: 
Chris@102:    bool operator()(const Node &a) const
Chris@102:    {  return static_cast<const Pred&>(*this)(a.m_data);  }
Chris@102: 
Chris@102:    bool operator()(const Node &a, const Node &b)
Chris@102:    {  return static_cast<Pred&>(*this)(a.m_data, b.m_data);  }
Chris@102: 
Chris@102:    bool operator()(const Node &a)
Chris@102:    {  return static_cast<Pred&>(*this)(a.m_data);  }
Chris@102: 
Chris@102:    predicate_type &       predicate()        { return static_cast<predicate_type&>(*this); }
Chris@102:    const predicate_type & predicate()  const { return static_cast<predicate_type&>(*this); }
Chris@102: };
Chris@102: 
Chris@102: }  //namespace container {
Chris@102: }  //namespace boost {
Chris@102: 
Chris@102: #endif   //BOOST_CONTAINER_DETAIL_COMPARE_FUNCTORS_HPP