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Diffstat (limited to '5/sources/cxx-stl/gnu-libstdc++/include/ext/pb_ds/detail/tree_policy/node_metadata_selector.hpp')
-rw-r--r-- | 5/sources/cxx-stl/gnu-libstdc++/include/ext/pb_ds/detail/tree_policy/node_metadata_selector.hpp | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/5/sources/cxx-stl/gnu-libstdc++/include/ext/pb_ds/detail/tree_policy/node_metadata_selector.hpp b/5/sources/cxx-stl/gnu-libstdc++/include/ext/pb_ds/detail/tree_policy/node_metadata_selector.hpp new file mode 100644 index 0000000..c182886 --- /dev/null +++ b/5/sources/cxx-stl/gnu-libstdc++/include/ext/pb_ds/detail/tree_policy/node_metadata_selector.hpp @@ -0,0 +1,116 @@ +// -*- 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 |