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43 lines
1.8 KiB
43 lines
1.8 KiB
///////////////////////////////////////////////////////////////////////////// |
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// |
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// (C) Copyright Ion Gaztanaga 2006-2009 |
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// |
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// Distributed under the Boost Software License, Version 1.0. |
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// (See accompanying file LICENSE_1_0.txt or copy at |
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// http://www.boost.org/LICENSE_1_0.txt) |
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// |
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// See http://www.boost.org/libs/intrusive for documentation. |
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// |
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///////////////////////////////////////////////////////////////////////////// |
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#ifndef BOOST_INTRUSIVE_TRIVIAL_VALUE_TRAITS_HPP |
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#define BOOST_INTRUSIVE_TRIVIAL_VALUE_TRAITS_HPP |
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#include <boost/intrusive/link_mode.hpp> |
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namespace boost { |
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namespace intrusive { |
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//!This value traits template is used to create value traits |
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//!from user defined node traits where value_traits::value_type and |
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//!node_traits::node should be equal |
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template<class NodeTraits, link_mode_type LinkMode = normal_link> |
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struct trivial_value_traits |
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{ |
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typedef NodeTraits node_traits; |
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typedef typename node_traits::node_ptr node_ptr; |
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typedef typename node_traits::const_node_ptr const_node_ptr; |
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typedef typename node_traits::node value_type; |
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typedef node_ptr pointer; |
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typedef const_node_ptr const_pointer; |
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static const link_mode_type link_mode = LinkMode; |
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static node_ptr to_node_ptr (value_type &value) { return node_ptr(&value); } |
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static const_node_ptr to_node_ptr (const value_type &value) { return const_node_ptr(&value); } |
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static pointer to_value_ptr(node_ptr n) { return pointer(n); } |
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static const_pointer to_value_ptr(const_node_ptr n) { return const_pointer(n); } |
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}; |
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} //namespace intrusive |
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} //namespace boost |
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#endif //BOOST_INTRUSIVE_TRIVIAL_VALUE_TRAITS_HPP
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