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author | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
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committer | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
commit | 1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch) | |
tree | c607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/libstdc++-v3/include/ext/pb_ds/detail/trie_policy/node_metadata_selector.hpp | |
parent | 283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff) | |
download | toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.zip toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.gz toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.bz2 |
Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/libstdc++-v3/include/ext/pb_ds/detail/trie_policy/node_metadata_selector.hpp')
-rw-r--r-- | gcc-4.9/libstdc++-v3/include/ext/pb_ds/detail/trie_policy/node_metadata_selector.hpp | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/gcc-4.9/libstdc++-v3/include/ext/pb_ds/detail/trie_policy/node_metadata_selector.hpp b/gcc-4.9/libstdc++-v3/include/ext/pb_ds/detail/trie_policy/node_metadata_selector.hpp new file mode 100644 index 0000000..c022107 --- /dev/null +++ b/gcc-4.9/libstdc++-v3/include/ext/pb_ds/detail/trie_policy/node_metadata_selector.hpp @@ -0,0 +1,103 @@ +// -*- C++ -*- + +// Copyright (C) 2005-2014 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 trie_policy/node_metadata_selector.hpp + * Contains an implementation class for tries. + */ + +#ifndef PB_DS_TRIE_NODE_METADATA_DISPATCH_HPP +#define PB_DS_TRIE_NODE_METADATA_DISPATCH_HPP + +#include <ext/pb_ds/detail/branch_policy/null_node_metadata.hpp> +#include <ext/pb_ds/detail/types_traits.hpp> + +namespace __gnu_pbds +{ + namespace detail + { + /** + * @addtogroup traits Traits + * @{ + */ + + /// Trie metadata helper. + template<typename Node_Update, bool _BTp> + struct trie_metadata_helper; + + /// Specialization, false. + template<typename Node_Update> + struct trie_metadata_helper<Node_Update, false> + { + typedef typename Node_Update::metadata_type type; + }; + + /// Specialization, true. + template<typename Node_Update> + struct trie_metadata_helper<Node_Update, true> + { + typedef null_type type; + }; + + /// Trie 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 trie_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; + + enum + { + null_update = is_same<__node_u, __nnode_u>::value + }; + + public: + typedef typename trie_metadata_helper<__node_u, null_update>::type type; + }; + //@} + } // namespace detail +} // namespace __gnu_pbds + +#endif // #ifndef PB_DS_TRIE_NODE_METADATA_DISPATCH_HPP |