this repo has no description
dekker.one
1/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
2/*
3 * Main authors:
4 * Christian Schulte <schulte@gecode.org>
5 * Vincent Barichard <Vincent.Barichard@univ-angers.fr>
6 *
7 * Copyright:
8 * Christian Schulte, 2004
9 * Vincent Barichard, 2012
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 { namespace Float { namespace Rel {
37
38 /*
39 * Disequality
40 *
41 */
42 template<class View0, class View1>
43 forceinline
44 Nq<View0,View1>::Nq(Home home, View0 x0, View1 x1)
45 : MixBinaryPropagator<View0,PC_FLOAT_VAL,View1,PC_FLOAT_VAL>(home,x0,x1) {}
46
47 template<class View0, class View1>
48 ExecStatus
49 Nq<View0,View1>::post(Home home, View0 x0, View1 x1){
50 if (x0.assigned() && x1.assigned()) {
51 if (overlap(x0.val(),x1.val()))
52 return ES_FAILED;
53 } else if (x0 == x1) {
54 return ES_FAILED;
55 } else {
56 (void) new (home) Nq<View0,View1>(home,x0,x1);
57 }
58 return ES_OK;
59 }
60
61 template<class View0, class View1>
62 forceinline
63 Nq<View0,View1>::Nq(Space& home, Nq<View0,View1>& p)
64 : MixBinaryPropagator<View0,PC_FLOAT_VAL,View1,PC_FLOAT_VAL>(home,p) {}
65
66 template<class View0, class View1>
67 Actor*
68 Nq<View0,View1>::copy(Space& home) {
69 return new (home) Nq<View0,View1>(home,*this);
70 }
71
72 template<class View0, class View1>
73 ExecStatus
74 Nq<View0,View1>::propagate(Space& home, const ModEventDelta&) {
75 if (x0.assigned() && x1.assigned()) {
76 return overlap(x0.val(),x1.val()) ? ES_FAILED : home.ES_SUBSUMED(*this);
77 }
78 return ES_FIX;
79 }
80
81 /*
82 * Disequality with float value
83 *
84 */
85 template<class View>
86 forceinline
87 NqFloat<View>::NqFloat(Home home, View x, FloatVal _c)
88 : UnaryPropagator<View,PC_FLOAT_VAL>(home,x), c(_c) {}
89
90 template<class View>
91 ExecStatus
92 NqFloat<View>::post(Home home, View x, FloatVal c){
93 if (x.assigned()) {
94 if (overlap(x.val(),c))
95 return ES_FAILED;
96 } else {
97 (void) new (home) NqFloat<View>(home,x,c);
98 }
99 return ES_OK;
100 }
101
102 template<class View>
103 forceinline
104 NqFloat<View>::NqFloat(Space& home, NqFloat<View>& p)
105 : UnaryPropagator<View,PC_FLOAT_VAL>(home,p), c(p.c) {}
106
107 template<class View>
108 Actor*
109 NqFloat<View>::copy(Space& home) {
110 return new (home) NqFloat<View>(home,*this);
111 }
112
113 template<class View>
114 ExecStatus
115 NqFloat<View>::propagate(Space& home, const ModEventDelta&) {
116 if (x0.assigned()) {
117 return (overlap(x0.val(),c)) ? ES_FAILED : home.ES_SUBSUMED(*this);
118 }
119 return ES_FIX;
120 }
121
122
123
124}}}
125
126// STATISTICS: float-prop