Generated on Sun Aug 9 2020 05:34:08 for Gecode by doxygen 1.8.18
base.hpp
Go to the documentation of this file.
1 /* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
2 /*
3  * Main authors:
4  * Christian Schulte <schulte@gecode.org>
5  *
6  * Copyright:
7  * Christian Schulte, 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 
34 namespace Gecode { namespace Int { namespace Bool {
35 
36  /*
37  * Binary Boolean propagators
38  *
39  */
40  template<class BVA, class BVB>
43  : Propagator(home), x0(b0), x1(b1) {
44  x0.subscribe(home,*this,PC_BOOL_VAL);
45  x1.subscribe(home,*this,PC_BOOL_VAL);
46  }
47 
48  template<class BVA, class BVB>
51  : Propagator(home,p) {
52  x0.update(home,p.x0);
53  x1.update(home,p.x1);
54  }
55 
56  template<class BVA, class BVB>
59  BVA b0, BVB b1)
60  : Propagator(home,p) {
61  x0.update(home,b0);
62  x1.update(home,b1);
63  }
64 
65  template<class BVA, class BVB>
66  PropCost
69  }
70 
71  template<class BVA, class BVB>
72  void
74  x0.reschedule(home,*this,PC_BOOL_VAL);
75  x1.reschedule(home,*this,PC_BOOL_VAL);
76  }
77 
78  template<class BVA, class BVB>
79  forceinline size_t
81  x0.cancel(home,*this,PC_BOOL_VAL);
82  x1.cancel(home,*this,PC_BOOL_VAL);
83  (void) Propagator::dispose(home);
84  return sizeof(*this);
85  }
86 
87  /*
88  * Ternary Boolean propagators
89  *
90  */
91  template<class BVA, class BVB, class BVC>
94  (Home home, BVA b0, BVB b1, BVC b2)
95  : Propagator(home), x0(b0), x1(b1), x2(b2) {
96  x0.subscribe(home,*this,PC_BOOL_VAL);
97  x1.subscribe(home,*this,PC_BOOL_VAL);
98  x2.subscribe(home,*this,PC_BOOL_VAL);
99  }
100 
101  template<class BVA, class BVB, class BVC>
105  : Propagator(home,p) {
106  x0.update(home,p.x0);
107  x1.update(home,p.x1);
108  x2.update(home,p.x2);
109  }
110 
111  template<class BVA, class BVB, class BVC>
114  BVA b0, BVB b1, BVC b2)
115  : Propagator(home,p) {
116  x0.update(home,b0);
117  x1.update(home,b1);
118  x2.update(home,b2);
119  }
120 
121  template<class BVA, class BVB, class BVC>
122  PropCost
125  }
126 
127  template<class BVA, class BVB, class BVC>
128  void
130  x0.reschedule(home,*this,PC_BOOL_VAL);
131  x1.reschedule(home,*this,PC_BOOL_VAL);
132  x2.reschedule(home,*this,PC_BOOL_VAL);
133  }
134 
135  template<class BVA, class BVB, class BVC>
136  forceinline size_t
138  x0.cancel(home,*this,PC_BOOL_VAL);
139  x1.cancel(home,*this,PC_BOOL_VAL);
140  x2.cancel(home,*this,PC_BOOL_VAL);
141  (void) Propagator::dispose(home);
142  return sizeof(*this);
143  }
144 
145 }}}
146 
147 // STATISTICS: int-prop
virtual size_t dispose(Space &home)
Delete propagator and return its size.
Definition: base.hpp:137
const Gecode::PropCond PC_BOOL_VAL
Propagate when a view becomes assigned (single value)
Definition: var-type.hpp:126
static PropCost binary(PropCost::Mod m)
Two variables for modifier pcm.
Definition: core.hpp:4809
BVB x1
Boolean view.
Definition: bool.hh:80
virtual void reschedule(Space &home)
Schedule function.
Definition: base.hpp:129
BVA x0
Boolean view.
Definition: bool.hh:79
@ LO
Cheap.
Definition: core.hpp:513
BoolBinary(Home home, BVA b0, BVB b1)
Definition: base.hpp:42
BVC x2
Boolean view Constructor for posting.
Definition: bool.hh:81
Computation spaces.
Definition: core.hpp:1742
virtual PropCost cost(const Space &home, const ModEventDelta &med) const
Cost function (defined as low unary)
Definition: base.hpp:67
virtual size_t dispose(Space &home)
Delete propagator and return its size.
Definition: base.hpp:80
Gecode toplevel namespace
Base-class for propagators.
Definition: core.hpp:1064
Basic b1(3)
Home class for posting propagators
Definition: core.hpp:856
BoolTernary(Home home, BVA b0, BVB b1, BVC b2)
Definition: base.hpp:94
Basic b2(i)
static PropCost unary(PropCost::Mod m)
Single variable for modifier pcm.
Definition: core.hpp:4813
virtual PropCost cost(const Space &home, const ModEventDelta &med) const
Cost function (defined as low binary)
Definition: base.hpp:123
Base-class for binary Boolean propagators.
Definition: bool.hh:55
Base-class for ternary Boolean propagators.
Definition: bool.hh:77
Propagation cost.
Definition: core.hpp:486
BVB x1
Boolean view Constructor for posting.
Definition: bool.hh:58
virtual void reschedule(Space &home)
Schedule function.
Definition: base.hpp:73
#define forceinline
Definition: config.hpp:185
virtual size_t dispose(Space &home)
Delete actor and return its size.
Definition: core.hpp:3252
int ModEventDelta
Modification event deltas.
Definition: core.hpp:89
int p
Number of positive literals for node type.
Definition: bool-expr.cpp:232
BVA x0
Boolean view.
Definition: bool.hh:57