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dekker.one
1/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
2/*
3 * Main author:
4 * Christian Schulte <schulte@gecode.org>
5 * Guido Tack <tack@gecode.org>
6 *
7 * Copyright:
8 * Christian Schulte, 2018
9 * Guido Tack, 2018
10 *
11 * This file is part of Gecode, the generic constraint
12 * development environment:
13 * http://www.gecode.org
14 *
15 * Permission is hereby granted, free of charge, to any person obtaining
16 * a copy of this software and associated documentation files (the
17 * "Software"), to deal in the Software without restriction, including
18 * without limitation the rights to use, copy, modify, merge, publish,
19 * distribute, sublicense, and/or sell copies of the Software, and to
20 * permit persons to whom the Software is furnished to do so, subject to
21 * the following conditions:
22 *
23 * The above copyright notice and this permission notice shall be
24 * included in all copies or substantial portions of the Software.
25 *
26 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
27 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
28 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
29 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
30 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
31 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
32 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
33 *
34 */
35
36namespace Gecode {
37
38 inline BoolVar
39 channel(Home home, IntVar x, IntPropLevel ipl) {
40 (void) ipl;
41 BoolVar b(home,0,1); channel(home,b,x);
42 return b;
43 }
44
45 inline IntVar
46 channel(Home home, BoolVar b, IntPropLevel ipl) {
47 (void) ipl;
48 IntVar x(home,0,1); channel(home,b,x);
49 return x;
50 }
51
52#ifdef GECODE_HAS_FLOAT_VARS
53 inline IntVar
54 channel(Home home, FloatVar f) {
55 int min = static_cast<int>(std::max(static_cast<double>(Int::Limits::min),
56 std::ceil(f.min())));
57 int max = static_cast<int>(std::min(static_cast<double>(Int::Limits::max),
58 std::floor(f.max())));
59 IntVar x(home,min,max);
60 channel(home,f,x);
61 return x;
62 }
63#endif
64
65#ifdef GECODE_HAS_SET_VARS
66 inline SetVar
67 channel(Home home, const IntVarArgs& x, IntPropLevel ipl) {
68 (void) ipl;
69 SetVar s(home,IntSet::empty,Set::Limits::min,Set::Limits::max);
70 rel(home,SOT_UNION,x,s);
71 nvalues(home,x,IRT_EQ,expr(home,cardinality(s)));
72 return s;
73 }
74#endif
75
76}
77
78// STATISTICS: minimodel-any
79