Chris@102: /////////////////////////////////////////////////////////////////////////////
Chris@102: //
Chris@102: // (C) Copyright Ion Gaztanaga  2014-2014
Chris@102: //
Chris@102: // Distributed under the Boost Software License, Version 1.0.
Chris@102: //    (See accompanying file LICENSE_1_0.txt or copy at
Chris@102: //          http://www.boost.org/LICENSE_1_0.txt)
Chris@102: //
Chris@102: // See http://www.boost.org/libs/intrusive for documentation.
Chris@102: //
Chris@102: /////////////////////////////////////////////////////////////////////////////
Chris@102: 
Chris@102: #ifndef BOOST_INTRUSIVE_DETAIL_KEY_NODEPTR_COMP_HPP
Chris@102: #define BOOST_INTRUSIVE_DETAIL_KEY_NODEPTR_COMP_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: #include <boost/intrusive/detail/mpl.hpp>
Chris@102: #include <boost/intrusive/detail/ebo_functor_holder.hpp>
Chris@102: 
Chris@102: namespace boost {
Chris@102: namespace intrusive {
Chris@102: namespace detail {
Chris@102: 
Chris@102: template<class KeyValueCompare, class ValueTraits>
Chris@102: struct key_nodeptr_comp
Chris@102:    //Use public inheritance to avoid MSVC bugs with closures
Chris@102:    :  public ebo_functor_holder<KeyValueCompare>
Chris@102: {
Chris@102:    typedef ValueTraits                             value_traits;
Chris@102:    typedef typename value_traits::value_type       value_type;
Chris@102:    typedef typename value_traits::node_ptr         node_ptr;
Chris@102:    typedef typename value_traits::const_node_ptr   const_node_ptr;
Chris@102:    typedef ebo_functor_holder<KeyValueCompare>     base_t;
Chris@102: 
Chris@102:    key_nodeptr_comp(KeyValueCompare kcomp, const ValueTraits *traits)
Chris@102:       :  base_t(kcomp), traits_(traits)
Chris@102:    {}
Chris@102: 
Chris@102:    template<class T>
Chris@102:    struct is_node_ptr
Chris@102:    {
Chris@102:       static const bool value = is_same<T, const_node_ptr>::value || is_same<T, node_ptr>::value;
Chris@102:    };
Chris@102: 
Chris@102:    //key_forward
Chris@102:    template<class T>
Chris@102:    const value_type & key_forward
Chris@102:       (const T &node, typename enable_if_c<is_node_ptr<T>::value>::type * = 0) const
Chris@102:    {  return *traits_->to_value_ptr(node);  }
Chris@102: 
Chris@102:    template<class T>
Chris@102:    const T & key_forward(const T &key, typename enable_if_c<!is_node_ptr<T>::value>::type* = 0) const
Chris@102:    {  return key;  }
Chris@102: 
Chris@102:    //operator() 1 arg
Chris@102:    template<class KeyType>
Chris@102:    bool operator()(const KeyType &key1) const
Chris@102:    {  return base_t::get()(this->key_forward(key1));  }
Chris@102: 
Chris@102:    template<class KeyType>
Chris@102:    bool operator()(const KeyType &key1)
Chris@102:    {  return base_t::get()(this->key_forward(key1));  }
Chris@102: 
Chris@102:    //operator() 2 arg
Chris@102:    template<class KeyType, class KeyType2>
Chris@102:    bool operator()(const KeyType &key1, const KeyType2 &key2) const
Chris@102:    {  return base_t::get()(this->key_forward(key1), this->key_forward(key2));  }
Chris@102: 
Chris@102:    template<class KeyType, class KeyType2>
Chris@102:    bool operator()(const KeyType &key1, const KeyType2 &key2)
Chris@102:    {  return base_t::get()(this->key_forward(key1), this->key_forward(key2));  }
Chris@102: 
Chris@102:    const ValueTraits *const traits_;
Chris@102: };
Chris@102: 
Chris@102: }  //namespace detail{
Chris@102: }  //namespace intrusive{
Chris@102: }  //namespace boost{
Chris@102: 
Chris@102: #endif //BOOST_INTRUSIVE_DETAIL_KEY_NODEPTR_COMP_HPP