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1.8.18
gecode
int
exec
when.hpp
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/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
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/*
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* Main authors:
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* Christian Schulte <schulte@gecode.org>
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*
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* Copyright:
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* Christian Schulte, 2009
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*
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* This file is part of Gecode, the generic constraint
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* development environment:
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* http://www.gecode.org
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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namespace
Gecode
{
namespace
Int {
namespace
Exec {
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forceinline
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When::When
(
Home
home,
BoolView
x
,
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std::function<
void
(
Space
& home)> t0,
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std::function<
void
(
Space
& home)> e0)
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:
UnaryPropagator
<
BoolView
,
PC_BOOL_VAL
>(home,
x
),
t
(t0), e(e0) {
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home.
notice
(*
this
,
AP_DISPOSE
);
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}
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forceinline
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When::When
(
Space
& home,
When
&
p
)
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:
UnaryPropagator
<
BoolView
,
PC_BOOL_VAL
>(home,
p
),
t
(
p
.
t
), e(
p
.e) {
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}
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forceinline
ExecStatus
50
When::post
(
Home
home,
BoolView
x
,
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std::function<
void
(
Space
& home)>
t
,
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std::function<
void
(
Space
& home)> e) {
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if
(!
t
)
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throw
InvalidFunction
(
"When::When"
);
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if
(!
e
)
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throw
InvalidFunction
(
"When::When"
);
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if
(
x
.zero()) {
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e
(home);
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return
home.
failed
() ?
ES_FAILED
:
ES_OK
;
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}
else
if
(
x
.one()) {
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t
(home);
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return
home.
failed
() ?
ES_FAILED
:
ES_OK
;
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}
else
{
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(void)
new
(home)
When
(home,
x
,
t
,
e
);
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return
ES_OK
;
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}
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}
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}}}
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// STATISTICS: int-prop
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Gecode::x
Post propagator for SetVar x
Definition:
set.hh:767
Gecode::Int::PC_BOOL_VAL
const Gecode::PropCond PC_BOOL_VAL
Propagate when a view becomes assigned (single value)
Definition:
var-type.hpp:126
Gecode::Int::Exec::When::When
When(Space &home, When &p)
Constructor for cloning p.
Definition:
when.hpp:45
Gecode::Int::Exec::When::t
SharedData< std::function< void(Space &home)> > t
Then function.
Definition:
exec.hh:56
t
NodeType t
Type of node.
Definition:
bool-expr.cpp:230
Gecode::Space
Computation spaces.
Definition:
core.hpp:1742
Gecode::Int::Exec::When
Conditional propagator.
Definition:
exec.hh:52
Gecode::Int::BoolView
Boolean view for Boolean variables.
Definition:
view.hpp:1380
Gecode
Gecode toplevel namespace
Gecode::Home
Home class for posting propagators
Definition:
core.hpp:856
Gecode::AP_DISPOSE
@ AP_DISPOSE
Actor must always be disposed.
Definition:
core.hpp:562
Gecode::Int::Exec::When::e
SharedData< std::function< void(Space &home)> > e
Else function pointer.
Definition:
exec.hh:58
Gecode::Space::failed
bool failed(void) const
Check whether space is failed.
Definition:
core.hpp:4044
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:50
Gecode::InvalidFunction
Exception: invalid function
Definition:
exception.hpp:114
forceinline
#define forceinline
Definition:
config.hpp:185
Gecode::UnaryPropagator
Unary propagator.
Definition:
pattern.hpp:55
Gecode::Space::notice
void notice(Actor &a, ActorProperty p, bool duplicate=false)
Notice actor property.
Definition:
core.hpp:4059
Gecode::ES_FAILED
@ ES_FAILED
Execution has resulted in failure.
Definition:
core.hpp:474
Gecode::ES_OK
@ 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