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1.8.3.1
gecode
int
exec
when.cpp
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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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* Last modified:
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* $Date: 2010-03-04 03:32:21 +1100 (Thu, 04 Mar 2010) $ by $Author: schulte $
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* $Revision: 10364 $
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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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#include <
gecode/int/exec.hh
>
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namespace
Gecode {
namespace
Int {
namespace
Exec {
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ExecStatus
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When::post
(
Home
home,
BoolView
x,
void
(*t)(
Space
&),
void
(*e)(
Space
&)) {
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if
(x.
zero
() && (
e
!= NULL)) {
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e
(home);
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return
home.
failed
() ?
ES_FAILED
:
ES_OK
;
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}
else
if
(x.
zero
() && (
t
!= NULL)) {
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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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Actor
*
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When::copy
(
Space
& home,
bool
share) {
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return
new
(home)
When
(home,share,*
this
);
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}
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ExecStatus
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When::propagate
(
Space
& home,
const
ModEventDelta
&) {
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if
(
x0
.
zero
() && (
e
!= NULL)) {
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e
(home);
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}
else
if
(
t
!= NULL) {
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assert(
x0
.
one
());
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t
(home);
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}
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if
(home.
failed
())
return
ES_FAILED
;
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return
home.
ES_SUBSUMED
(*
this
);
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}
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}}}
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// STATISTICS: int-prop
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