3 // Copyright (C) 2005-2018 Free Software Foundation, Inc.
5 // This file is part of the GNU ISO C++ Library. This library is free
6 // software; you can redistribute it and/or modify it under the terms
7 // of the GNU General Public License as published by the Free Software
8 // Foundation; either version 3, or (at your option) any later
11 // This library is distributed in the hope that it will be useful, but
12 // WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 // General Public License for more details.
16 // Under Section 7 of GPL version 3, you are granted additional
17 // permissions described in the GCC Runtime Library Exception, version
18 // 3.1, as published by the Free Software Foundation.
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21 // a copy of the GCC Runtime Library Exception along with this program;
22 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
23 // <http://www.gnu.org/licenses/>.
25 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
27 // Permission to use, copy, modify, sell, and distribute this software
28 // is hereby granted without fee, provided that the above copyright
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37 * @file branch_policy/branch_policy.hpp
38 * Contains a base class for branch policies.
41 #ifndef PB_DS_BRANCH_POLICY_BASE_HPP
42 #define PB_DS_BRANCH_POLICY_BASE_HPP
44 #include <ext/pb_ds/tag_and_trait.hpp>
50 /// Primary template, base class for branch structure policies.
51 template<typename Node_CItr
, typename Node_Itr
, typename _Alloc
>
55 typedef typename
Node_Itr::value_type it_type
;
56 typedef typename
std::iterator_traits
<it_type
>::value_type value_type
;
57 typedef typename
value_type::first_type key_type
;
59 typedef typename remove_const
<value_type
>::type rcvalue_type
;
60 typedef typename remove_const
<key_type
>::type rckey_type
;
62 typedef typename
_Alloc::template rebind
<rcvalue_type
>::other rebind_v
;
63 typedef typename
_Alloc::template rebind
<rckey_type
>::other rebind_k
;
65 typedef typename
rebind_v::reference reference
;
66 typedef typename
rebind_v::const_reference const_reference
;
67 typedef typename
rebind_v::const_pointer const_pointer
;
69 typedef typename
rebind_k::const_reference key_const_reference
;
71 static inline key_const_reference
72 extract_key(const_reference r_val
)
73 { return r_val
.first
; }
80 { return const_cast<branch_policy
*>(this)->end(); }
86 /// Specialization for const iterators.
87 template<typename Node_CItr
, typename _Alloc
>
88 struct branch_policy
<Node_CItr
, Node_CItr
, _Alloc
>
91 typedef typename
Node_CItr::value_type it_type
;
92 typedef typename
std::iterator_traits
<it_type
>::value_type value_type
;
93 typedef typename remove_const
<value_type
>::type rcvalue_type
;
94 typedef typename
_Alloc::template rebind
<rcvalue_type
>::other rebind_v
;
95 typedef typename
rebind_v::reference reference
;
96 typedef typename
rebind_v::const_reference const_reference
;
97 typedef typename
rebind_v::const_pointer const_pointer
;
99 typedef value_type key_type
;
100 typedef typename
rebind_v::const_reference key_const_reference
;
102 static inline key_const_reference
103 extract_key(const_reference r_val
)
116 } // namespace detail
117 } // namespace __gnu_pbds
119 #endif // #ifndef PB_DS_BRANCH_POLICY_BASE_HPP