2 This file is a part of libcds - Concurrent Data Structures library
4 (C) Copyright Maxim Khizhinsky (libcds.dev@gmail.com) 2006-2016
6 Source code repo: http://github.com/khizmax/libcds/
7 Download: http://sourceforge.net/projects/libcds/files/
9 Redistribution and use in source and binary forms, with or without
10 modification, are permitted provided that the following conditions are met:
12 * Redistributions of source code must retain the above copyright notice, this
13 list of conditions and the following disclaimer.
15 * Redistributions in binary form must reproduce the above copyright notice,
16 this list of conditions and the following disclaimer in the documentation
17 and/or other materials provided with the distribution.
19 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
20 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
22 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
23 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
25 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
26 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
27 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 #ifndef CDSUNIT_PQUEUE_ITEM_H
32 #define CDSUNIT_PQUEUE_ITEM_H
38 typedef size_t key_type;
40 struct key_extractor {
41 void operator()( key_type& k, SimpleValue const& s ) const
47 SimpleValue(): key(0) {}
48 SimpleValue( size_t n ): key(n) {}
54 struct less<pqueue::SimpleValue>
56 bool operator()( pqueue::SimpleValue const& k1, pqueue::SimpleValue const& k2 ) const
58 return k1.key < k2.key;
61 bool operator()( pqueue::SimpleValue const& k1, size_t k2 ) const
66 bool operator()( size_t k1, pqueue::SimpleValue const& k2 ) const
71 bool operator()( size_t k1, size_t k2 ) const
78 struct greater<pqueue::SimpleValue>
80 bool operator()( pqueue::SimpleValue const& k1, pqueue::SimpleValue const& k2 ) const
82 return k1.key > k2.key;
85 bool operator()( pqueue::SimpleValue const& k1, size_t k2 ) const
90 bool operator()( size_t k1, pqueue::SimpleValue const& k2 ) const
95 bool operator()( size_t k1, size_t k2 ) const
103 #endif // #ifndef CDSUNIT_PQUEUE_ITEM_H