main page
modules
namespaces
classes
files
Gecode home
Generated on Tue Jan 28 2020 00:00:00 for Gecode by
doxygen
1.8.17
gecode
int
relax.cpp
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, 2016
8
*
9
* Last modified:
10
* $Date: 2016-10-25 12:52:26 +0200 (Tue, 25 Oct 2016) $ by $Author: schulte $
11
* $Revision: 15233 $
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/int.hh
>
39
#include <
gecode/search/relax.hh
>
40
41
namespace
Gecode
{
namespace
Int {
42
44
class
Relax
{
45
public
:
47
ExecStatus
operator ()
(
Home
home,
IntVar
x
,
IntVar
sx);
49
ExecStatus
operator ()
(
Home
home,
BoolVar
x
,
BoolVar
sx);
50
};
51
52
forceinline
ExecStatus
53
Relax::operator ()
(
Home
home,
IntVar
x
,
IntVar
sx) {
54
IntView
xv(
x
);
55
return
me_failed
(xv.
eq
(home,sx.
val
())) ?
ES_FAILED
:
ES_OK
;
56
}
57
58
forceinline
ExecStatus
59
Relax::operator ()
(
Home
home,
BoolVar
x
,
BoolVar
sx) {
60
BoolView
xv(
x
);
61
return
me_failed
(xv.
eq
(home,sx.
val
())) ?
ES_FAILED
:
ES_OK
;
62
}
63
64
}}
65
66
namespace
Gecode
{
67
68
void
69
relax
(
Home
home,
const
IntVarArgs
&
x
,
const
IntVarArgs
& sx,
70
Rnd
r
,
double
p
) {
71
if
(
x
.size() != sx.size())
72
throw
Int::ArgumentSizeMismatch
(
"Int::relax"
);
73
if
((
p
< 0.0) || (
p
> 1.0))
74
throw
Int::OutOfLimits
(
"Int::relax"
);
75
Int::Relax
ir;
76
Search::relax<IntVarArgs,Int::Relax>(home,
x
,sx,
r
,
p
,ir);
77
}
78
79
void
80
relax
(
Home
home,
const
BoolVarArgs
&
x
,
const
BoolVarArgs
& sx,
81
Rnd
r
,
double
p
) {
82
if
(
x
.size() != sx.size())
83
throw
Int::ArgumentSizeMismatch
(
"Int::relax"
);
84
if
((
p
< 0.0) || (
p
> 1.0))
85
throw
Int::OutOfLimits
(
"Int::relax"
);
86
Int::Relax
ir;
87
Search::relax<BoolVarArgs,Int::Relax>(home,
x
,sx,
r
,
p
,ir);
88
}
89
90
}
91
92
// STATISTICS: int-other
93
Gecode::x
Post propagator for SetVar x
Definition:
set.hh:784
Gecode::Int::ArgumentSizeMismatch
Exception: Arguments are of different size
Definition:
exception.hpp:77
relax.hh
forceinline
#define forceinline
Definition:
config.hpp:173
Gecode::me_failed
bool me_failed(ModEvent me)
Check whether modification event me is failed.
Definition:
modevent.hpp:58
Gecode::IntVarArgs
Passing integer variables.
Definition:
int.hh:639
int.hh
Gecode::relax
void relax(Home home, const FloatVarArgs &x, const FloatVarArgs &sx, Rnd r, double p)
Definition:
relax.cpp:61
Gecode::Int::BoolView
Boolean view for Boolean variables.
Definition:
view.hpp:1315
Gecode
Gecode toplevel namespace
Gecode::BoolVarArgs
Passing Boolean variables.
Definition:
int.hh:693
Gecode::Home
Home class for posting propagators
Definition:
core.hpp:922
Gecode::Int::Relax
Class for posting equalities for non-relaxed variables.
Definition:
relax.cpp:44
Gecode::r
Post propagator for SetVar SetOpType SetVar SetRelType r
Definition:
set.hh:784
Gecode::BoolVar
Boolean integer variables.
Definition:
int.hh:494
Gecode::Rnd
Random number generator.
Definition:
rnd.hpp:46
Gecode::IntVar
Integer variables.
Definition:
int.hh:353
Gecode::Int::BoolView::eq
ModEvent eq(Space &home, int n)
Restrict domain values to be equal to n.
Definition:
bool.hpp:164
Gecode::Int::Relax::operator()
ExecStatus operator()(Home home, IntVar x, IntVar sx)
Post the actual equality for non-relaxed variables.
Definition:
relax.cpp:53
Gecode::Int::IntView
Integer view for integer variables.
Definition:
view.hpp:129
Gecode::IntVar::val
int val(void) const
Return assigned value.
Definition:
int.hpp:60
Gecode::BoolVar::val
int val(void) const
Return assigned value.
Definition:
bool.hpp:61
Gecode::Int::OutOfLimits
Exception: Value out of limits
Definition:
exception.hpp:48
Gecode::ES_FAILED
@ ES_FAILED
Execution has resulted in failure.
Definition:
core.hpp:542
Gecode::ES_OK
@ ES_OK
Execution is okay.
Definition:
core.hpp:544
p
int p
Number of positive literals for node type.
Definition:
bool-expr.cpp:236
Gecode::Int::IntView::eq
ModEvent eq(Space &home, int n)
Restrict domain values to be equal to n.
Definition:
int.hpp:160
Gecode::ExecStatus
ExecStatus
Definition:
core.hpp:540