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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, 2017
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 {
35
36 forceinline IntRelType
37 swap(IntRelType irt) {
38 switch (irt) {
39 case IRT_EQ: return IRT_EQ;
40 case IRT_NQ: return IRT_NQ;
41 case IRT_LE: return IRT_GR;
42 case IRT_LQ: return IRT_GQ;
43 case IRT_GR: return IRT_LE;
44 case IRT_GQ: return IRT_LQ;
45 default: GECODE_NEVER;
46 }
47 GECODE_NEVER;
48 return IRT_EQ; // Avoid compiler warnings
49 }
50
51 forceinline IntRelType
52 neg(IntRelType irt) {
53 switch (irt) {
54 case IRT_EQ: return IRT_NQ;
55 case IRT_NQ: return IRT_EQ;
56 case IRT_GQ: return IRT_LE;
57 case IRT_LQ: return IRT_GR;
58 case IRT_LE: return IRT_GQ;
59 case IRT_GR: return IRT_LQ;
60 default: GECODE_NEVER;
61 }
62 GECODE_NEVER;
63 return IRT_EQ; // Avoid compiler warnings
64 }
65
66
67}
68
69// STATISTICS: int-post
70