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dekker.one
1/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
2/*
3 * Main authors:
4 * Christian Schulte <schulte@gecode.org>
5 *
6 * Copyright:
7 * Christian Schulte, 2003
8 *
9 * This file is part of Gecode, the generic constraint
10 * development environment:
11 * http://www.gecode.org
12 *
13 * Permission is hereby granted, free of charge, to any person obtaining
14 * a copy of this software and associated documentation files (the
15 * "Software"), to deal in the Software without restriction, including
16 * without limitation the rights to use, copy, modify, merge, publish,
17 * distribute, sublicense, and/or sell copies of the Software, and to
18 * permit persons to whom the Software is furnished to do so, subject to
19 * the following conditions:
20 *
21 * The above copyright notice and this permission notice shall be
22 * included in all copies or substantial portions of the Software.
23 *
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
28 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
29 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
30 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
31 *
32 */
33
34namespace Gecode { namespace Int { namespace ViewValGraph {
35
36 template<class T>
37 forceinline
38 CombPtrFlag<T>::CombPtrFlag(T* p1, T* p2)
39 : cpf(reinterpret_cast<ptrdiff_t>(p1) ^ reinterpret_cast<ptrdiff_t>(p2)) {}
40
41 template<class T>
42 forceinline T*
43 CombPtrFlag<T>::ptr(T* p) const {
44 return reinterpret_cast<T*>((cpf&~1) ^ reinterpret_cast<ptrdiff_t>(p));
45 }
46
47 template<class T>
48 forceinline int
49 CombPtrFlag<T>::is_set(void) const {
50 return static_cast<int>(cpf&1);
51 }
52
53 template<class T>
54 forceinline void
55 CombPtrFlag<T>::set(void) {
56 cpf |= 1;
57 }
58
59 template<class T>
60 forceinline void
61 CombPtrFlag<T>::unset(void) {
62 cpf &= ~1;
63 }
64
65 template<class T>
66 forceinline void
67 CombPtrFlag<T>::init(T* p1, T* p2) {
68 cpf = reinterpret_cast<ptrdiff_t>(p1) ^ reinterpret_cast<ptrdiff_t>(p2);
69 }
70
71}}}
72
73// STATISTICS: int-prop
74