seq.cpp
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/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
* Main authors:
* Guido Tack <tack@gecode.org>
* Christian Schulte <schulte@gecode.org>
*
* Contributing authors:
* Gabor Szokoli <szokoli@gecode.org>
*
* Copyright:
* Guido Tack, 2004
* Christian Schulte, 2004
* Gabor Szokoli, 2004
*
* This file is part of Gecode, the generic constraint
* development environment:
* http://www.gecode.org
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
#include <gecode/set/sequence.hh>
namespace Gecode { namespace Set { namespace Sequence {
/*
* "Sequence" propagator
*
*/
Actor*
Seq::copy(Space& home) {
return new (home) Seq(home,*this);
}
ExecStatus
Seq::propagate(Space& home, const ModEventDelta&) {
bool modified = false;
bool assigned;
do {
assigned = false; modified = false;
GECODE_ES_CHECK(propagateSeq(home, modified, assigned, x));
} while (assigned || modified);
for (int i=x.size(); i--;)
if (!x[i].assigned())
return ES_FIX;
return home.ES_SUBSUMED(*this);
}
}}}
// STATISTICS: set-prop
Gecode::NaryPropagator< SetView, PC_SET_ANY >::x
ViewArray< SetView > x
Definition pattern.hpp:145
Gecode::Propagator::Space
friend class Space
Definition core.hpp:1066
Gecode::Set::Sequence::Seq::Seq
Seq(Space &home, Seq &p)
Constructor for cloning p.
Definition seq.hpp:52
Gecode::Set::Sequence::Seq::propagate
virtual ExecStatus propagate(Space &home, const ModEventDelta &med)
Perform propagation.
Definition seq.cpp:55
Gecode::Set::Sequence::Seq::copy
virtual Actor * copy(Space &home)
Copy propagator during cloning.
Definition seq.cpp:50
Gecode::Space::ES_SUBSUMED
ExecStatus ES_SUBSUMED(Propagator &p)
Definition core.hpp:3563
Gecode::ModEventDelta
int ModEventDelta
Modification event deltas.
Definition core.hpp:89
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:91
Gecode::Set::Sequence
Propagators for ordered sequences of sets.
Definition sequence.hh:45
Gecode::Set::Sequence::propagateSeq
ExecStatus propagateSeq(Space &home, bool &modified, bool &assigned, ViewArray< SetView > &x)
Definition common.hpp:43
Gecode::Set
Finite integer sets.
Definition var-imp.hpp:137
Gecode
Gecode toplevel namespace
Gecode::ExecStatus
ExecStatus
Definition core.hpp:472
Gecode::ES_FIX
@ ES_FIX
Propagation has computed fixpoint.
Definition core.hpp:477
sequence.hh