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Diffstat (limited to '8/sources/cxx-stl/gnu-libstdc++/4.7/include/ext/pb_ds/detail/branch_policy/branch_policy.hpp')
| -rw-r--r-- | 8/sources/cxx-stl/gnu-libstdc++/4.7/include/ext/pb_ds/detail/branch_policy/branch_policy.hpp | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/8/sources/cxx-stl/gnu-libstdc++/4.7/include/ext/pb_ds/detail/branch_policy/branch_policy.hpp b/8/sources/cxx-stl/gnu-libstdc++/4.7/include/ext/pb_ds/detail/branch_policy/branch_policy.hpp new file mode 100644 index 0000000..3c90b49 --- /dev/null +++ b/8/sources/cxx-stl/gnu-libstdc++/4.7/include/ext/pb_ds/detail/branch_policy/branch_policy.hpp @@ -0,0 +1,119 @@ +// -*- C++ -*- + +// Copyright (C) 2005, 2006, 2009, 2011 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 branch_policy/branch_policy.hpp + * Contains a base class for branch policies. + */ + +#ifndef PB_DS_BRANCH_POLICY_BASE_HPP +#define PB_DS_BRANCH_POLICY_BASE_HPP + +#include <ext/pb_ds/tag_and_trait.hpp> + +namespace __gnu_pbds +{ + namespace detail + { + /// Primary template, base class for branch structure policies. + template<typename Node_CItr, typename Node_Itr, typename _Alloc> + struct branch_policy + { + protected: + typedef typename Node_Itr::value_type it_type; + typedef typename std::iterator_traits<it_type>::value_type value_type; + typedef typename value_type::first_type key_type; + + typedef typename remove_const<value_type>::type rcvalue_type; + typedef typename remove_const<key_type>::type rckey_type; + + typedef typename _Alloc::template rebind<rcvalue_type>::other rebind_v; + typedef typename _Alloc::template rebind<rckey_type>::other rebind_k; + + typedef typename rebind_v::reference reference; + typedef typename rebind_v::const_reference const_reference; + typedef typename rebind_v::const_pointer const_pointer; + + typedef typename rebind_k::const_reference key_const_reference; + + static inline key_const_reference + extract_key(const_reference r_val) + { return r_val.first; } + + virtual it_type + end() = 0; + + it_type + end_iterator() const + { return const_cast<branch_policy*>(this)->end(); } + + virtual + ~branch_policy() { } + }; + + /// Specialization for const iterators. + template<typename Node_CItr, typename _Alloc> + struct branch_policy<Node_CItr, Node_CItr, _Alloc> + { + protected: + typedef typename Node_CItr::value_type it_type; + typedef typename std::iterator_traits<it_type>::value_type value_type; + typedef typename remove_const<value_type>::type rcvalue_type; + typedef typename _Alloc::template rebind<rcvalue_type>::other rebind_v; + typedef typename rebind_v::reference reference; + typedef typename rebind_v::const_reference const_reference; + typedef typename rebind_v::const_pointer const_pointer; + + typedef value_type key_type; + typedef typename rebind_v::const_reference key_const_reference; + + static inline key_const_reference + extract_key(const_reference r_val) + { return r_val; } + + virtual it_type + end() const = 0; + + it_type + end_iterator() const + { return end(); } + + virtual + ~branch_policy() { } + }; + } // namespace detail +} // namespace __gnu_pbds + +#endif // #ifndef PB_DS_BRANCH_POLICY_BASE_HPP |