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dekker.one
1/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
2/*
3 * Main authors:
4 * Gabor Szokoli <szokoli@gecode.org>
5 * Guido Tack <tack@gecode.org>
6 * Christian Schulte <schulte@gecode.org>
7 *
8 * Copyright:
9 * Gabor Szokoli, 2004
10 * Guido Tack, 2004
11 * Christian Schulte, 2004
12 *
13 * This file is part of Gecode, the generic constraint
14 * development environment:
15 * http://www.gecode.org
16 *
17 * Permission is hereby granted, free of charge, to any person obtaining
18 * a copy of this software and associated documentation files (the
19 * "Software"), to deal in the Software without restriction, including
20 * without limitation the rights to use, copy, modify, merge, publish,
21 * distribute, sublicense, and/or sell copies of the Software, and to
22 * permit persons to whom the Software is furnished to do so, subject to
23 * the following conditions:
24 *
25 * The above copyright notice and this permission notice shall be
26 * included in all copies or substantial portions of the Software.
27 *
28 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
29 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
30 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
31 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
32 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
33 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
34 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
35 *
36 */
37
38#include <gecode/set.hh>
39#include <gecode/set/int.hh>
40
41namespace Gecode {
42
43 void
44 cardinality(Home home, SetVar x, unsigned int i, unsigned int j) {
45 Set::Limits::check(i, "Set::cardinality");
46 Set::Limits::check(j, "Set::cardinality");
47 GECODE_POST;
48 Set::SetView _x(x);
49 GECODE_ME_FAIL(_x.cardMin(home, i));
50 GECODE_ME_FAIL(_x.cardMax(home, j));
51 }
52
53 void
54 cardinality(Home home, const SetVarArgs& x, unsigned int i, unsigned int j) {
55 Set::Limits::check(i, "Set::cardinality");
56 Set::Limits::check(j, "Set::cardinality");
57 GECODE_POST;
58 for (int k=x.size(); k--; ) {
59 Set::SetView _x(x[k]);
60 GECODE_ME_FAIL(_x.cardMin(home, i));
61 GECODE_ME_FAIL(_x.cardMax(home, j));
62 }
63 }
64
65 void
66 cardinality(Home home, SetVar s, IntVar x) {
67 GECODE_POST;
68 GECODE_ES_FAIL(Set::Int::Card<Set::SetView>::post(home,s, x));
69 }
70
71 void
72 cardinality(Home home, SetVar s, IntVar x, Reify r) {
73 IntVar y(home, 0, static_cast<int>(Set::Limits::card));
74 rel(home, x, IRT_EQ, y, r);
75 cardinality(home, s, y);
76 }
77
78}
79
80// STATISTICS: set-post