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gecode
set
sequence
seq.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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* Guido Tack <tack@gecode.org>
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* Christian Schulte <schulte@gecode.org>
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*
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* Contributing authors:
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* Gabor Szokoli <szokoli@gecode.org>
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*
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* Copyright:
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* Guido Tack, 2004
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* Christian Schulte, 2004
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* Gabor Szokoli, 2004
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*
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* Last modified:
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* $Date: 2010-03-03 17:32:21 +0100 (Wed, 03 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/set/sequence.hh
>
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namespace
Gecode
{
namespace
Set {
namespace
Sequence {
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/*
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* "Sequence" propagator
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*
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*/
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Actor*
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Seq::copy
(
Space
& home,
bool
share) {
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return
new
(home)
Seq
(home,share,*
this
);
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}
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ExecStatus
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Seq::propagate
(
Space
& home,
const
ModEventDelta
&) {
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bool
modified =
false
;
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bool
assigned
;
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do
{
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assigned
=
false
; modified =
false
;
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GECODE_ES_CHECK
(
propagateSeq
(home, modified,
assigned
,
x
));
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}
while
(
assigned
|| modified);
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for
(
int
i
=
x
.
size
();
i
--;)
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if
(!
x
[
i
].
assigned
())
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return
ES_FIX
;
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return
home.
ES_SUBSUMED
(*
this
);
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}
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}}}
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// STATISTICS: set-prop
Gecode::Set::Sequence::propagateSeq
ExecStatus propagateSeq(Space &home, bool &modified, bool &assigned, ViewArray< SetView > &x)
Definition:
common.hpp:47
Gecode::Space::ES_SUBSUMED
ExecStatus ES_SUBSUMED(Propagator &p)
Definition:
core.hpp:3614
Gecode::Set::Sequence::Seq::Seq
Seq(Space &home, bool share, Seq &p)
Constructor for cloning p.
Definition:
seq.hpp:56
Gecode::Int::Precede::assigned
bool assigned(View x, int v)
Whether x is assigned to value v.
Definition:
single.hpp:47
Test::Int::Basic::i
Gecode::IntArgs i(4, 1, 2, 3, 4)
Gecode::Space
Computation spaces.
Definition:
core.hpp:1748
Gecode::NaryPropagator< SetView, PC_SET_ANY >::x
ViewArray< SetView > x
Array of views.
Definition:
propagator.hpp:152
Gecode
Gecode toplevel namespace
GECODE_ES_CHECK
#define GECODE_ES_CHECK(es)
Check whether execution status es is failed or subsumed, and forward failure or subsumption.
Definition:
macros.hpp:95
Gecode::Set::Sequence::Seq::copy
virtual Actor * copy(Space &home, bool)
Copy propagator during cloning.
Definition:
seq.cpp:54
Gecode::ES_FIX
@ ES_FIX
Propagation has computed fixpoint.
Definition:
core.hpp:545
sequence.hh
Gecode::ViewArray::size
int size(void) const
Return size of array (number of elements)
Definition:
array.hpp:1215
Gecode::Set::Sequence::Seq::propagate
virtual ExecStatus propagate(Space &home, const ModEventDelta &med)
Perform propagation.
Definition:
seq.cpp:59
Gecode::ModEventDelta
int ModEventDelta
Modification event deltas.
Definition:
core.hpp:169
Gecode::ExecStatus
ExecStatus
Definition:
core.hpp:540