3 // Copyright (C) 2005, 2006, 2009 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 // You should have received a copy of the GNU General Public License
17 // along with this library; see the file COPYING3. If not see
18 // <http://www.gnu.org/licenses/>.
21 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
23 // Permission to use, copy, modify, sell, and distribute this software
24 // is hereby granted without fee, provided that the above copyright
25 // notice appears in all copies, and that both that copyright notice
26 // and this permission notice appear in supporting documentation. None
27 // of the above authors, nor IBM Haifa Research Laboratories, make any
28 // representation about the suitability of this software for any
29 // purpose. It is provided "as is" without express or implied
33 * @file native_priority_queue.hpp
34 * Contains an adapter to Dinkumware/SGI tree tables
37 #ifndef PB_DS_NATIVE_PRIORITY_QUEUE_HPP
38 #define PB_DS_NATIVE_PRIORITY_QUEUE_HPP
44 #include <ext/pb_ds/detail/standard_policies.hpp>
45 #include <ext/pb_ds/detail/type_utils.hpp>
54 template<typename Value_Type, bool Vector, typename Allocator>
58 typedef typename Allocator::template rebind<Value_Type> value_rebind;
61 typedef std::vector<Value_Type, typename value_rebind::other> type;
64 template<typename Value_Type, typename Allocator>
65 struct base_seq<Value_Type, false, Allocator>
68 typedef typename Allocator::template rebind<Value_Type> value_rebind;
71 typedef std::deque<Value_Type, typename value_rebind::other> type;
78 #define PB_DS_CLASS_C_DEC \
79 native_priority_queue<Value_Type, Vector, Cmp_Fn, Allocator>
81 #define PB_DS_BASE_C_DEC \
82 std::priority_queue<Value_Type, typename detail::base_seq<Value_Type, Vector, Allocator>::type, Cmp_Fn>
84 template<typename Value_Type,
86 typename Cmp_Fn = std::less<Value_Type>,
87 typename Allocator = std::allocator<char> >
88 class native_priority_queue : public PB_DS_BASE_C_DEC
91 typedef PB_DS_BASE_C_DEC base_type;
92 typedef typename Allocator::template rebind<Value_Type> value_rebind;
95 typedef Value_Type value_type;
96 typedef typename value_rebind::other::const_reference const_reference;
97 typedef native_pq_tag container_category;
98 typedef Cmp_Fn cmp_fn;
100 native_priority_queue() : base_type()
103 template<typename It>
104 native_priority_queue(It f, It l) : base_type(f, l)
111 return ("n_pq_vector");
112 return ("n_pq_deque");
119 return make_xml_tag("type", "value", "std::priority_queue_vector");
120 return make_xml_tag("type", "value", "std::priority_queue_deque");
125 { *static_cast<base_type*>(this) = base_type(); }
128 erase(const_reference r_val)
133 while (cmp(base_type::top(), r_val) || cmp(r_val, base_type::top()))
135 tmp.push(base_type::top());
139 if (!base_type::empty())
142 while (!base_type::empty())
144 tmp.push(base_type::top());
148 *static_cast<base_type* >(this) = tmp;
151 template<typename Pred>
156 std::size_t ersd = 0;
157 while (!base_type::empty())
159 if (!pred(base_type::top()))
160 tmp.push(base_type::top());
166 *static_cast<base_type*>(this) = tmp;
170 template<typename Pred>
172 split(Pred pred, PB_DS_CLASS_C_DEC& other)
176 while (!base_type::empty())
178 if (!pred(base_type::top()))
179 tmp.push(base_type::top());
181 other.push(base_type::top());
184 *static_cast<base_type*>(this) = tmp;
188 modify(const_reference r_old, const_reference r_new)
195 join(PB_DS_CLASS_C_DEC& other)
197 std::vector<value_type> a_tmp;
198 while (!base_type::empty())
200 a_tmp.push_back(base_type::top());
204 while (!other.empty())
206 a_tmp.push_back(other.top());
210 *static_cast<base_type*>(this) = base_type(a_tmp.begin(), a_tmp.end());
218 #undef PB_DS_BASE_C_DEC
219 #undef PB_DS_CLASS_C_DEC
222 } // namespace __gnu_pbds