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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, 2003
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 {
37
38 /*
39 * Constructors and initialization
40 *
41 */
42 forceinline
43 MinusView::MinusView(void) {}
44 forceinline
45 MinusView::MinusView(const FloatView& y)
46 : DerivedView<FloatView>(y) {}
47
48 /*
49 * Value access
50 *
51 */
52 forceinline FloatVal
53 MinusView::domain(void) const {
54 return -x.domain();
55 }
56 forceinline FloatNum
57 MinusView::min(void) const {
58 return -x.max();
59 }
60 forceinline FloatNum
61 MinusView::max(void) const {
62 return -x.min();
63 }
64 forceinline FloatNum
65 MinusView::med(void) const {
66 return -x.med();
67 }
68 forceinline FloatVal
69 MinusView::val(void) const {
70 return -x.val();
71 }
72
73 forceinline FloatNum
74 MinusView::size(void) const {
75 return x.size();
76 }
77
78
79 /*
80 * Domain tests
81 *
82 */
83 forceinline bool
84 MinusView::zero_in(void) const {
85 return x.zero_in();
86 }
87 forceinline bool
88 MinusView::in(FloatNum n) const {
89 return x.in(-n);
90 }
91 forceinline bool
92 MinusView::in(const FloatVal& n) const {
93 return x.in(-n);
94 }
95
96
97 /*
98 * Domain update by value
99 *
100 */
101 forceinline ModEvent
102 MinusView::lq(Space& home, int n) {
103 return x.gq(home,-n);
104 }
105 forceinline ModEvent
106 MinusView::lq(Space& home, FloatNum n) {
107 return x.gq(home,-n);
108 }
109 forceinline ModEvent
110 MinusView::lq(Space& home, FloatVal n) {
111 return x.gq(home,-n);
112 }
113
114 forceinline ModEvent
115 MinusView::gq(Space& home, int n) {
116 return x.lq(home,-n);
117 }
118 forceinline ModEvent
119 MinusView::gq(Space& home, FloatNum n) {
120 return x.lq(home,-n);
121 }
122 forceinline ModEvent
123 MinusView::gq(Space& home, FloatVal n) {
124 return x.lq(home,-n);
125 }
126
127 forceinline ModEvent
128 MinusView::eq(Space& home, int n) {
129 return x.eq(home,-n);
130 }
131 forceinline ModEvent
132 MinusView::eq(Space& home, FloatNum n) {
133 return x.eq(home,-n);
134 }
135 forceinline ModEvent
136 MinusView::eq(Space& home, const FloatVal& n) {
137 return x.eq(home,-n);
138 }
139
140
141 /*
142 * Delta information for advisors
143 *
144 */
145 forceinline FloatNum
146 MinusView::min(const Delta& d) const {
147 return -x.max(d);
148 }
149 forceinline FloatNum
150 MinusView::max(const Delta& d) const {
151 return -x.min(d);
152 }
153
154
155 forceinline ModEventDelta
156 MinusView::med(ModEvent me) {
157 return VarImpView<FloatVar>::med(me);
158 }
159
160 /*
161 * View comparison
162 *
163 */
164 forceinline bool
165 operator ==(const MinusView& x, const MinusView& y) {
166 return x.base() == y.base();
167 }
168 forceinline bool
169 operator !=(const MinusView& x, const MinusView& y) {
170 return !(x == y);
171 }
172
173}}
174
175// STATISTICS: float-var
176