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
exec
when.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, 2009
8
*
9
* Last modified:
10
* $Date: 2017-02-21 01:08:52 +0100 (Tue, 21 Feb 2017) $ by $Author: schulte $
11
* $Revision: 15456 $
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
namespace
Gecode
{
namespace
Int {
namespace
Exec {
39
40
forceinline
41
When::When
(
Home
home,
BoolView
x
,
42
std::function<
void
(
Space
& home)> t0,
43
std::function<
void
(
Space
& home)> e0)
44
:
UnaryPropagator
<
BoolView
,
PC_BOOL_VAL
>(home,
x
),
t
(t0), e(e0) {
45
home.
notice
(*
this
,
AP_DISPOSE
);
46
}
47
48
forceinline
49
When::When
(
Space
& home,
bool
share,
When
&
p
)
50
:
UnaryPropagator
<
BoolView
,
PC_BOOL_VAL
>(home,share,
p
) {
51
t
.update(home, share,
p
.t);
52
e
.update(home, share,
p
.e);
53
}
54
55
forceinline
ExecStatus
56
When::post
(
Home
home,
BoolView
x
,
57
std::function<
void
(
Space
& home)>
t
,
58
std::function<
void
(
Space
& home)> e) {
59
if
(!
t
)
60
throw
InvalidFunction
(
"When::When"
);
61
if
(!
e
)
62
throw
InvalidFunction
(
"When::When"
);
63
if
(
x
.zero()) {
64
e
(home);
65
return
home.
failed
() ?
ES_FAILED
:
ES_OK
;
66
}
else
if
(
x
.one()) {
67
t
(home);
68
return
home.
failed
() ?
ES_FAILED
:
ES_OK
;
69
}
else
{
70
(void)
new
(home)
When
(home,
x
,
t
,
e
);
71
return
ES_OK
;
72
}
73
}
74
75
}}}
76
77
// STATISTICS: int-prop
78
Gecode::x
Post propagator for SetVar x
Definition:
set.hh:784
Gecode::Int::PC_BOOL_VAL
const Gecode::PropCond PC_BOOL_VAL
Propagate when a view becomes assigned (single value)
Definition:
var-type.hpp:126
forceinline
#define forceinline
Definition:
config.hpp:173
Gecode::Int::Exec::When::t
SharedData< std::function< void(Space &home)> > t
Then function.
Definition:
exec.hh:60
t
NodeType t
Type of node.
Definition:
bool-expr.cpp:234
Gecode::Space
Computation spaces.
Definition:
core.hpp:1748
Gecode::Int::Exec::When
Conditional propagator.
Definition:
exec.hh:56
Gecode::Int::BoolView
Boolean view for Boolean variables.
Definition:
view.hpp:1315
Gecode
Gecode toplevel namespace
Gecode::Home
Home class for posting propagators
Definition:
core.hpp:922
Gecode::AP_DISPOSE
@ AP_DISPOSE
Actor must always be disposed.
Definition:
core.hpp:630
Gecode::Int::Exec::When::e
SharedData< std::function< void(Space &home)> > e
Else function pointer.
Definition:
exec.hh:62
Gecode::Space::failed
bool failed(void) const
Check whether space is failed.
Definition:
core.hpp:4095
Gecode::Int::Exec::When::post
static ExecStatus post(Home home, BoolView x, std::function< void(Space &home)> t, std::function< void(Space &home)> e)
Post propagator.
Definition:
when.hpp:56
Gecode::InvalidFunction
Exception: invalid function
Definition:
exception.hpp:118
Gecode::UnaryPropagator
Unary propagator.
Definition:
propagator.hpp:59
Gecode::Int::Exec::When::When
When(Space &home, bool share, When &p)
Constructor for cloning p.
Definition:
when.hpp:49
Gecode::Space::notice
void notice(Actor &a, ActorProperty p, bool duplicate=false)
Notice actor property.
Definition:
core.hpp:4123
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::ExecStatus
ExecStatus
Definition:
core.hpp:540