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[/] [openrisc/] [tags/] [gnu-src/] [gcc-4.5.1/] [gcc-4.5.1-or32-1.0rc3/] [libstdc++-v3/] [include/] [ext/] [pb_ds/] [detail/] [tree_policy/] [node_metadata_selector.hpp] - Rev 516
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// -*- C++ -*- // Copyright (C) 2005, 2006, 2009 Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free // software; you can redistribute it and/or modify it under the terms // of the GNU General Public License as published by the Free Software // Foundation; either version 3, or (at your option) any later // version. // This library is distributed in the hope that it will be useful, but // WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // General Public License for more details. // Under Section 7 of GPL version 3, you are granted additional // permissions described in the GCC Runtime Library Exception, version // 3.1, as published by the Free Software Foundation. // You should have received a copy of the GNU General Public License and // a copy of the GCC Runtime Library Exception along with this program; // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see // <http://www.gnu.org/licenses/>. // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. // Permission to use, copy, modify, sell, and distribute this software // is hereby granted without fee, provided that the above copyright // notice appears in all copies, and that both that copyright notice // and this permission notice appear in supporting documentation. None // of the above authors, nor IBM Haifa Research Laboratories, make any // representation about the suitability of this software for any // purpose. It is provided "as is" without express or implied // warranty. /** * @file node_metadata_selector.hpp * Contains an implementation class for trees. */ #ifndef PB_DS_TREE_NODE_METADATA_SELECTOR_HPP #define PB_DS_TREE_NODE_METADATA_SELECTOR_HPP #include <ext/pb_ds/detail/basic_tree_policy/null_node_metadata.hpp> #include <ext/pb_ds/detail/types_traits.hpp> namespace __gnu_pbds { namespace detail { template<typename Node_Update, bool Null> struct tree_metadata_helper { typedef typename Node_Update::metadata_type type; }; template<typename Node_Update> struct tree_metadata_helper< Node_Update, true> { typedef null_node_metadata type; }; template<typename Key, typename Data, class Cmp_Fn, template<typename Const_Node_Iterator, class Const_Iterator, class Cmp_Fn_, class Allocator_> class Node_Update, class Allocator> struct tree_node_metadata_selector { private: typedef dumconst_node_iterator< Key, Data, Allocator> dumconst_node_it; enum { null_update = is_same< Node_Update< dumconst_node_it, dumconst_node_it, Cmp_Fn, Allocator>, null_tree_node_update< dumconst_node_it, dumconst_node_it, Cmp_Fn, Allocator> >::value }; public: typedef typename tree_metadata_helper< Node_Update< dumconst_node_it, dumconst_node_it, Cmp_Fn, Allocator>, null_update>::type type; }; } // namespace detail } // namespace __gnu_pbds #endif // #ifndef PB_DS_TREE_NODE_METADATA_SELECTOR_HPP