card.hpp
Go to the documentation of this file.
/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
* Main authors:
* Guido Tack <tack@gecode.org>
* Christian Schulte <schulte@gecode.org>
* 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.hh>
#include <gecode/int.hh>
namespace Gecode { namespace Set { namespace Int {
template<class View>
forceinline
Card<View>::Card(Home home, View y0, Gecode::Int::IntView y1)
: MixBinaryPropagator<View,PC_SET_CARD,
Gecode::Int::IntView,Gecode::Int::PC_INT_BND> (home, y0, y1) {}
template<class View>
forceinline ExecStatus
Card<View>::post(Home home, View x0, Gecode::Int::IntView x1) {
GECODE_ME_CHECK(x1.gq(home,0));
GECODE_ME_CHECK(x0.cardMax(home, Gecode::Int::Limits::max));
(void) new (home) Card(home,x0,x1);
return ES_OK;
}
template<class View>
forceinline
Card<View>::Card(Space& home, Card& p)
: MixBinaryPropagator<View,PC_SET_CARD,
Gecode::Int::IntView,Gecode::Int::PC_INT_BND> (home, p) {}
template<class View>
Actor*
Card<View>::copy(Space& home) {
return new (home) Card(home,*this);
}
template<class View>
ExecStatus
Card<View>::propagate(Space& home, const ModEventDelta&) {
int x1min, x1max;
do {
x1min = x1.min();
x1max = x1.max();
GECODE_ME_CHECK(x0.cardMin(home,static_cast<unsigned int>(x1min)));
GECODE_ME_CHECK(x0.cardMax(home,static_cast<unsigned int>(x1max)));
GECODE_ME_CHECK(x1.gq(home,static_cast<int>(x0.cardMin())));
GECODE_ME_CHECK(x1.lq(home,static_cast<int>(x0.cardMax())));
} while (x1.min() > x1min || x1.max() < x1max);
if (x1.assigned())
return home.ES_SUBSUMED(*this);
return ES_FIX;
}
}}}
// STATISTICS: set-prop
Gecode::Actor
Base-class for both propagators and branchers.
Definition core.hpp:628
Gecode::Home
Home class for posting propagators
Definition core.hpp:856
Gecode::Int::IntView
Integer view for integer variables.
Definition view.hpp:129
Gecode::MixBinaryPropagator< View, PC_SET_CARD, Gecode::Int::IntView, Gecode::Int::PC_INT_BND >::x1
Gecode::Int::IntView x1
Definition pattern.hpp:209
Gecode::MixBinaryPropagator< View, PC_SET_CARD, Gecode::Int::IntView, Gecode::Int::PC_INT_BND >::MixBinaryPropagator
MixBinaryPropagator(Space &home, MixBinaryPropagator &p)
Definition pattern.hpp:597
Gecode::MixBinaryPropagator< View, PC_SET_CARD, Gecode::Int::IntView, Gecode::Int::PC_INT_BND >::x0
View x0
Definition pattern.hpp:207
Gecode::Propagator::Space
friend class Space
Definition core.hpp:1066
Gecode::Set::Int::Card::Card
Card(Space &home, Card &p)
Constructor for cloning p.
Definition card.hpp:60
Gecode::Set::Int::Card::propagate
virtual ExecStatus propagate(Space &home, const ModEventDelta &med)
Perform propagation.
Definition card.hpp:72
Gecode::Set::Int::Card::copy
virtual Actor * copy(Space &home)
Copy propagator during cloning.
Definition card.hpp:66
Gecode::Set::Int::Card::post
static ExecStatus post(Home home, View s, Gecode::Int::IntView x)
Post propagator for .
Definition card.hpp:51
Gecode::View
int.hh
set.hh
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_ME_CHECK
#define GECODE_ME_CHECK(me)
Check whether modification event me is failed, and forward failure.
Definition macros.hpp:52
Gecode::Int::Limits::max
const int max
Largest allowed integer value.
Definition int.hh:116
Gecode::Int::PC_INT_BND
const Gecode::PropCond PC_INT_BND
Propagate when minimum or maximum of a view changes.
Definition var-type.hpp:91
Gecode::Set::Int
Propagators connecting set and int variables.
Definition int.cpp:105
Gecode::Set
Finite integer sets.
Definition var-imp.hpp:137
Gecode::Set::PC_SET_CARD
const Gecode::PropCond PC_SET_CARD
Propagate when the cardinality of a view changes.
Definition var-type.hpp:216
Gecode
Gecode toplevel namespace
Gecode::ExecStatus
ExecStatus
Definition core.hpp:472
Gecode::ES_OK
@ ES_OK
Execution is okay.
Definition core.hpp:476
Gecode::ES_FIX
@ ES_FIX
Propagation has computed fixpoint.
Definition core.hpp:477
forceinline
#define forceinline
Definition config.hpp:187