main page
modules
namespaces
classes
files
Gecode home
Generated on Fri Jan 10 2020 11:38:25 for Gecode by
doxygen
1.8.16
gecode
set
int
card.hpp
Go to the documentation of this file.
1
/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
2
/*
3
* Main authors:
4
* Guido Tack <tack@gecode.org>
5
* Christian Schulte <schulte@gecode.org>
6
* Gabor Szokoli <szokoli@gecode.org>
7
*
8
* Copyright:
9
* Guido Tack, 2004
10
* Christian Schulte, 2004
11
* Gabor Szokoli, 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/int.hh
>
40
41
namespace
Gecode
{
namespace
Set {
namespace
Int {
42
43
template
<
class
View>
44
forceinline
45
Card<View>::Card
(
Home
home, View y0,
Gecode::Int::IntView
y1)
46
:
MixBinaryPropagator
<View,
PC_SET_CARD
,
47
Gecode
::Int::
IntView
,
Gecode
::Int::
PC_INT_BND
> (home, y0, y1) {}
48
49
template
<
class
View>
50
forceinline
ExecStatus
51
Card<View>::post
(
Home
home, View x0,
Gecode::Int::IntView
x1) {
52
GECODE_ME_CHECK
(x1.
gq
(home,0));
53
GECODE_ME_CHECK
(x0.cardMax(home,
Gecode::Int::Limits::max
));
54
(void)
new
(home)
Card
(home,x0,x1);
55
return
ES_OK
;
56
}
57
58
template
<
class
View>
59
forceinline
60
Card<View>::Card
(
Space
& home,
Card
&
p
)
61
:
MixBinaryPropagator
<View,
PC_SET_CARD
,
62
Gecode
::Int::
IntView
,
Gecode
::Int::
PC_INT_BND
> (home,
p
) {}
63
64
template
<
class
View>
65
Actor
*
66
Card<View>::copy
(
Space
& home) {
67
return
new
(home)
Card
(home,*
this
);
68
}
69
70
template
<
class
View>
71
ExecStatus
72
Card<View>::propagate
(
Space
& home,
const
ModEventDelta
&) {
73
int
x1min, x1max;
74
do
{
75
x1min = x1.min();
76
x1max = x1.max();
77
GECODE_ME_CHECK
(x0.cardMin(home,static_cast<unsigned int>(x1min)));
78
GECODE_ME_CHECK
(x0.cardMax(home,static_cast<unsigned int>(x1max)));
79
GECODE_ME_CHECK
(x1.gq(home,static_cast<int>(x0.cardMin())));
80
GECODE_ME_CHECK
(x1.lq(home,static_cast<int>(x0.cardMax())));
81
}
while
(x1.min() > x1min || x1.max() < x1max);
82
if
(x1.assigned())
83
return
home.
ES_SUBSUMED
(*
this
);
84
return
ES_FIX
;
85
}
86
87
}}}
88
89
// STATISTICS: set-prop
Gecode::Space::ES_SUBSUMED
ExecStatus ES_SUBSUMED(Propagator &p)
Definition:
core.hpp:3563
int.hh
Gecode::Set::Int::Card::Card
Card(Space &home, Card &p)
Constructor for cloning p.
Definition:
card.hpp:60
Gecode::Space
Computation spaces.
Definition:
core.hpp:1742
Gecode::Actor
Base-class for both propagators and branchers.
Definition:
core.hpp:628
Gecode
Gecode toplevel namespace
Gecode::MixBinaryPropagator
Mixed binary propagator.
Definition:
pattern.hpp:204
Gecode::Home
Home class for posting propagators
Definition:
core.hpp:856
Gecode::Set::PC_SET_CARD
const Gecode::PropCond PC_SET_CARD
Propagate when the cardinality of a view changes.
Definition:
var-type.hpp:216
Gecode::Int::Limits::max
const int max
Largest allowed integer value.
Definition:
int.hh:116
Gecode::Int::PC_INT_BND
const Gecode::PropCond PC_INT_BND
Propagate when minimum or maximum of a view changes.
Definition:
var-type.hpp:91
Gecode::ES_FIX
Propagation has computed fixpoint.
Definition:
core.hpp:477
Gecode::Set::Int::Card
Propagator for cardinality
Definition:
int.hh:229
Gecode::Int::IntView
Integer view for integer variables.
Definition:
view.hpp:129
set.hh
forceinline
#define forceinline
Definition:
config.hpp:185
Gecode::Set::Int::Card::copy
virtual Actor * copy(Space &home)
Copy propagator during cloning.
Definition:
card.hpp:66
GECODE_ME_CHECK
#define GECODE_ME_CHECK(me)
Check whether modification event me is failed, and forward failure.
Definition:
macros.hpp:52
Gecode::Int::IntView::gq
ModEvent gq(Space &home, int n)
Restrict domain values to be greater or equal than n.
Definition:
int.hpp:139
Gecode::Set::Int::Card::propagate
virtual ExecStatus propagate(Space &home, const ModEventDelta &med)
Perform propagation.
Definition:
card.hpp:72
Gecode::Set::Int::Card::post
static ExecStatus post(Home home, View s, Gecode::Int::IntView x)
Post propagator for .
Definition:
card.hpp:51
Gecode::ModEventDelta
int ModEventDelta
Modification event deltas.
Definition:
core.hpp:89
Gecode::ES_OK
Execution is okay.
Definition:
core.hpp:476
p
int p
Number of positive literals for node type.
Definition:
bool-expr.cpp:232
Gecode::ExecStatus
ExecStatus
Definition:
core.hpp:472