Jip J. Dekker
1d9faf38de
git-subtree-dir: software/gecode git-subtree-split: 313e87646da4fc2752a70e83df16d993121a8e40
76 lines
2.6 KiB
C++
76 lines
2.6 KiB
C++
/* -*- 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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*
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* Copyright:
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* Guido Tack, 2004
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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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#ifndef GECODE_SET_ATMOSTONE_HH
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#define GECODE_SET_ATMOSTONE_HH
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#include <gecode/set.hh>
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namespace Gecode { namespace Set { namespace Distinct {
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/**
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* \namespace Gecode::Set::Distinct
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* \brief Propagators for global distinctness constraints
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*/
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/**
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* \brief %Propagator for the AtMostOneIntersection constraint
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*
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* Requires \code #include <gecode/set/distinct.hh> \endcode
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* \ingroup FuncSetProp
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*/
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class AtmostOne : public NaryPropagator<SetView, PC_SET_ANY> {
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protected:
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/// Cardinality of the sets
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unsigned int c;
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/// Constructor for cloning \a p
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AtmostOne(Space& home, AtmostOne& p);
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/// Constructor for posting
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AtmostOne(Home home, ViewArray<SetView>&,unsigned int);
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public:
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/// Copy propagator during cloning
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GECODE_SET_EXPORT virtual Actor* copy(Space& home);
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/// Perform propagation
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GECODE_SET_EXPORT virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
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/// Post propagator for \f$\forall 0\leq i\leq |x| : |x_i|=c\f$ and \f$\forall 0\leq i<j\leq |x| : |x_i\cap x_j|\leq 1\f$
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static ExecStatus post(Home home,ViewArray<SetView> x,unsigned int c);
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};
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}}}
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#include <gecode/set/distinct/atmostOne.hpp>
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#endif
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// STATISTICS: set-prop
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