0,0 → 1,103 |
// -*- C++ -*- |
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// Copyright (C) 2005-2013 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. |
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// 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. |
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// 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/>. |
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// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. |
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// 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. |
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/** |
* @file tree_policy/node_metadata_selector.hpp |
* Contains an implementation class for trees. |
*/ |
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#ifndef PB_DS_TREE_NODE_METADATA_DISPATCH_HPP |
#define PB_DS_TREE_NODE_METADATA_DISPATCH_HPP |
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#include <ext/pb_ds/detail/branch_policy/null_node_metadata.hpp> |
#include <ext/pb_ds/detail/types_traits.hpp> |
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namespace __gnu_pbds |
{ |
namespace detail |
{ |
/** |
* @addtogroup traits Traits |
* @{ |
*/ |
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/// Tree metadata helper. |
template<typename Node_Update, bool _BTp> |
struct tree_metadata_helper; |
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/// Specialization, false. |
template<typename Node_Update> |
struct tree_metadata_helper<Node_Update, false> |
{ |
typedef typename Node_Update::metadata_type type; |
}; |
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/// Specialization, true. |
template<typename Node_Update> |
struct tree_metadata_helper<Node_Update, true> |
{ |
typedef null_type type; |
}; |
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/// Tree node metadata dispatch. |
template<typename Key, |
typename Data, |
typename Cmp_Fn, |
template<typename Node_CItr, |
typename Const_Iterator, |
typename Cmp_Fn_, |
typename _Alloc_> |
class Node_Update, |
typename _Alloc> |
struct tree_node_metadata_dispatch |
{ |
private: |
typedef dumnode_const_iterator<Key, Data, _Alloc> __it_type; |
typedef Node_Update<__it_type, __it_type, Cmp_Fn, _Alloc> __node_u; |
typedef null_node_update<__it_type, __it_type, Cmp_Fn, _Alloc> __nnode_u; |
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enum |
{ |
null_update = is_same<__node_u, __nnode_u>::value |
}; |
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public: |
typedef typename tree_metadata_helper<__node_u, null_update>::type type; |
}; |
//@} |
} // namespace detail |
} // namespace __gnu_pbds |
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#endif // #ifndef PB_DS_TREE_NODE_METADATA_DISPATCH_HPP |