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dekker.one
1/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
2/*
3 * Main authors:
4 * Christopher Mears <Chris.Mears@monash.edu>
5 *
6 * Contributing authors:
7 * Christian Schulte <schulte@gecode.org>
8 * Guido Tack <tack@gecode.org>
9 *
10 * Copyright:
11 * Christopher Mears, 2011
12 * Christian Schulte, 2011
13 * Guido Tack, 2011
14 *
15 * This file is part of Gecode, the generic constraint
16 * development environment:
17 * http://www.gecode.org
18 *
19 * Permission is hereby granted, free of charge, to any person obtaining
20 * a copy of this software and associated documentation files (the
21 * "Software"), to deal in the Software without restriction, including
22 * without limitation the rights to use, copy, modify, merge, publish,
23 * distribute, sublicense, and/or sell copies of the Software, and to
24 * permit persons to whom the Software is furnished to do so, subject to
25 * the following conditions:
26 *
27 * The above copyright notice and this permission notice shall be
28 * included in all copies or substantial portions of the Software.
29 *
30 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
31 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
32 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
33 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
34 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
35 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
36 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
37 *
38 */
39
40#include <gecode/set/precede.hh>
41
42namespace Gecode {
43
44 void
45 precede(Home home, const SetVarArgs& x, int s, int t) {
46 using namespace Set;
47 Limits::check(s,"Set::precede");
48 Limits::check(t,"Set::precede");
49 GECODE_POST;
50
51 ViewArray<SetView> y(home, x);
52 GECODE_ES_FAIL(Precede::Single<SetView>::post(home, y, s, t));
53 }
54
55 void
56 precede(Home home, const SetVarArgs& x, const IntArgs& c) {
57 using namespace Set;
58 if (c.size() < 2)
59 return;
60 for (int i=c.size(); i--; )
61 Limits::check(c[i],"Set::precede");
62 GECODE_POST;
63
64 for (int i=c.size()-1; i--; ) {
65 ViewArray<SetView> y(home, x);
66 GECODE_ES_FAIL(Precede::Single<SetView>::post(home, y, c[i], c[i+1]));
67 }
68 }
69
70}
71
72// STATISTICS: set-post