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dekker.one
1/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
2/*
3 * Main authors:
4 * Guido Tack <tack@gecode.org>
5 *
6 * Copyright:
7 * Guido Tack, 2004
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 Set { namespace Distinct {
35
36 /*
37 * "AtMostOneIntersection" propagator
38 *
39 */
40
41 forceinline
42 AtmostOne::AtmostOne(Home home, ViewArray<SetView>& x, unsigned int _c)
43 : NaryPropagator<SetView, PC_SET_ANY>(home,x), c(_c) {}
44
45 forceinline
46 AtmostOne::AtmostOne(Space& home, AtmostOne& p)
47 : NaryPropagator<SetView, PC_SET_ANY>(home,p), c(p.c) {}
48
49 forceinline ExecStatus
50 AtmostOne::post(Home home, ViewArray<SetView> x, unsigned int c) {
51 for (int i=x.size(); i--;) {
52 GECODE_ME_CHECK(x[i].cardMin(home, c));
53 GECODE_ME_CHECK(x[i].cardMax(home, c));
54 }
55
56 (void) new (home) AtmostOne(home,x,c);
57 return ES_OK;
58 }
59
60}}}
61
62// STATISTICS: set-prop