Jip J. Dekker
981be2067e
git-subtree-dir: software/gecode_on_replay git-subtree-split: 8051d92b9c89e49cccfbd1c201371580d7703ab4
329 lines
11 KiB
C++
329 lines
11 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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* 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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* 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_REL_HH
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#define GECODE_SET_REL_HH
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#include <gecode/set.hh>
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namespace Gecode { namespace Set { namespace Rel {
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/**
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* \namespace Gecode::Set::Rel
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* \brief Standard set relation propagators
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*/
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/// Test whether two views are in fact the same
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template<class VX, class VY>
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bool same(VX c, VY y);
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/**
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* \brief %Propagator for the subset constraint
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*
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* Requires \code #include <gecode/set/rel.hh> \endcode
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* \ingroup FuncSetProp
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*/
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template<class View0, class View1>
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class Subset :
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public MixBinaryPropagator<View0,PC_SET_CGLB,View1,PC_SET_CLUB> {
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protected:
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using MixBinaryPropagator<View0,PC_SET_CGLB,View1,PC_SET_CLUB>::x0;
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using MixBinaryPropagator<View0,PC_SET_CGLB,View1,PC_SET_CLUB>::x1;
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/// Constructor for cloning \a p
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Subset(Space& home, Subset& p);
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/// Constructor for posting
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Subset(Home home, View0 x0, View1 x1);
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public:
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/// Copy propagator during cloning
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virtual Actor* copy(Space& home);
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/// Perform propagation
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virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
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/// Post propagator \f$ x\subseteq y\f$
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static ExecStatus post(Home home, View0 x, View1 y);
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};
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/**
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* \brief %Propagator for the negated subset constraint
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*
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* Requires \code #include <gecode/set/rel.hh> \endcode
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* \ingroup FuncSetProp
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*/
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template<class View0, class View1>
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class NoSubset :
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public MixBinaryPropagator<View0,PC_SET_CLUB,View1,PC_SET_CGLB> {
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protected:
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using MixBinaryPropagator<View0,PC_SET_CLUB,View1,PC_SET_CGLB>::x0;
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using MixBinaryPropagator<View0,PC_SET_CLUB,View1,PC_SET_CGLB>::x1;
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/// Constructor for cloning \a p
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NoSubset(Space& home, NoSubset& p);
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/// Constructor for posting
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NoSubset(Home home, View0 x0, View1 x1);
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public:
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/// Copy propagator during cloning
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virtual Actor* copy(Space& home);
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/// Perform propagation
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virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
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/// Post propagator \f$ x\subseteq y\f$
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static ExecStatus post(Home home,View0 x,View1 y);
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};
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/**
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* \brief %Reified subset propagator
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*
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* Requires \code #include <gecode/set/rel.hh> \endcode
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* \ingroup FuncSetProp
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*/
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template<class View0, class View1, class CtrlView, ReifyMode rm>
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class ReSubset : public Propagator {
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protected:
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/// Variable view
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View0 x0;
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/// Variable view
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View1 x1;
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/// Boolean control view
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CtrlView b;
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/// Constructor for cloning \a p
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ReSubset(Space& home, ReSubset& p);
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/// Constructor for posting
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ReSubset(Home home, View0 x0, View1 x1, CtrlView b);
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public:
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/// Copy propagator during cloning
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virtual Actor* copy(Space& home);
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/// Cost function (defined as ternary low)
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virtual PropCost cost(const Space& home, const ModEventDelta& med) const;
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/// Schedule function
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virtual void reschedule(Space& home);
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/// Delete propagator and return its size
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virtual size_t dispose(Space& home);
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/// Perform propagation
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virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
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/// Post propagator for \f$ (x\subseteq y) \Leftrightarrow b \f$
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static ExecStatus post(Home home, View0 x, View1 y,
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CtrlView b);
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};
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/**
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* \brief %Propagator for set equality
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*
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* Requires \code #include <gecode/set/rel.hh> \endcode
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* \ingroup FuncSetProp
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*/
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template<class View0, class View1>
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class Eq : public MixBinaryPropagator<View0,PC_SET_ANY,View1,PC_SET_ANY> {
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protected:
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using MixBinaryPropagator<View0,PC_SET_ANY,View1,PC_SET_ANY>::x0;
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using MixBinaryPropagator<View0,PC_SET_ANY,View1,PC_SET_ANY>::x1;
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/// Constructor for cloning \a p
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Eq(Space& home, Eq& p);
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/// Constructor for posting
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Eq(Home home, View0 x0, View1 x1);
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public:
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/// Copy propagator during cloning
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virtual Actor* copy(Space& home);
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/// Perform propagation
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virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
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/// Post propagator \f$ x=y \f$
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static ExecStatus post(Home home, View0 x, View1 y);
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};
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/**
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* \brief %Reified equality propagator
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*
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* Requires \code #include <gecode/set/rel.hh> \endcode
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* \ingroup FuncSetProp
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*/
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template<class View0, class View1, class CtrlView, ReifyMode rm>
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class ReEq : public Propagator {
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protected:
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View0 x0;
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View1 x1;
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CtrlView b;
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/// Constructor for cloning \a p
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ReEq(Space& home, ReEq&);
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/// Constructor for posting
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ReEq(Home home, View0 x0, View1 x1, CtrlView b);
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public:
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/// Copy propagator during cloning
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virtual Actor* copy(Space& home);
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/// Cost function (defined as PC_TERNARY_LO)
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virtual PropCost cost(const Space& home, const ModEventDelta& med) const;
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/// Schedule function
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virtual void reschedule(Space& home);
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/// Delete propagator and return its size
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virtual size_t dispose(Space& home);
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/// Perform propagation
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virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
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/// Post propagator for \f$ (x=y) \Leftrightarrow b\f$
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static ExecStatus post(Home home, View0 x, View1 y,
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CtrlView b);
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};
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/**
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* \brief %Propagator for set less than or equal
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*
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* Propagates strict inequality if \a strict is true.
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*
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* Requires \code #include <gecode/set/rel.hh> \endcode
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* \ingroup FuncSetProp
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*/
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template<class View0, class View1, bool strict=false>
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class Lq : public MixBinaryPropagator<View0,PC_SET_ANY,View1,PC_SET_ANY> {
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protected:
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using MixBinaryPropagator<View0,PC_SET_ANY,View1,PC_SET_ANY>::x0;
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using MixBinaryPropagator<View0,PC_SET_ANY,View1,PC_SET_ANY>::x1;
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/// Constructor for cloning \a p
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Lq(Space& home, Lq& p);
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/// Constructor for posting
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Lq(Home home, View0 x0, View1 x1);
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public:
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/// Copy propagator during cloning
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virtual Actor* copy(Space& home);
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/// Perform propagation
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virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
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/// Post propagator \f$ x\leq y \f$
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static ExecStatus post(Home home, View0 x, View1 y);
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};
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/**
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* \brief %Reified propagator for set less than or equal
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*
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* Propagates strict inequality if \a strict is true.
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*
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* Requires \code #include <gecode/set/rel.hh> \endcode
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* \ingroup FuncSetProp
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*/
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template<class View0, class View1, ReifyMode rm, bool strict=false>
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class ReLq : public Propagator {
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protected:
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View0 x0;
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View1 x1;
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Gecode::Int::BoolView b;
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/// Constructor for cloning \a p
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ReLq(Space& home, ReLq& p);
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/// Constructor for posting
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ReLq(Home home, View0 x0, View1 x1, Gecode::Int::BoolView b);
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public:
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/// Copy propagator during cloning
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virtual Actor* copy(Space& home);
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/// Cost function (defined as PC_TERNARY_LO)
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virtual PropCost cost(const Space& home, const ModEventDelta& med) const;
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/// Schedule function
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virtual void reschedule(Space& home);
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/// Delete propagator and return its size
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virtual size_t dispose(Space& home);
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/// Perform propagation
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virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
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/// Post propagator for \f$ (x\leq y) \Leftrightarrow b\f$
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static ExecStatus post(Home home, View0 x, View1 y,
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Gecode::Int::BoolView b);
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};
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/**
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* \brief %Propagator for negated equality
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*
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* Requires \code #include <gecode/set/rel.hh> \endcode
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* \ingroup FuncSetProp
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*/
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template<class View0, class View1>
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class Distinct :
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public MixBinaryPropagator<View0,PC_SET_VAL,View1,PC_SET_VAL> {
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protected:
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using MixBinaryPropagator<View0,PC_SET_VAL,View1,PC_SET_VAL>::x0;
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using MixBinaryPropagator<View0,PC_SET_VAL,View1,PC_SET_VAL>::x1;
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/// Constructor for cloning \a p
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Distinct(Space& home, Distinct& p);
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/// Constructor for posting
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Distinct(Home home, View0 x0, View1 x1);
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public:
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/// Copy propagator during cloning
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virtual Actor* copy(Space& home);
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/// Perform propagation
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virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
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/// Post propagator \f$ x\neq y \f$
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static ExecStatus post(Home home, View0 x, View1 y);
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};
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/**
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* \brief %Propagator for negated equality
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*
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* This propagator actually propagates the distinctness, after the
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* Distinct propagator waited for one variable to become
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* assigned.
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*
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* Requires \code #include <gecode/set/rel.hh> \endcode
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* \ingroup FuncSetProp
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*/
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template<class View0>
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class DistinctDoit : public UnaryPropagator<View0,PC_SET_ANY> {
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protected:
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using UnaryPropagator<View0,PC_SET_ANY>::x0;
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/// The view that is already assigned
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ConstSetView y;
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/// Constructor for cloning \a p
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DistinctDoit(Space& home, DistinctDoit&);
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/// Constructor for posting
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DistinctDoit(Home home, View0 x0, ConstSetView y);
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public:
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/// Copy propagator during cloning
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virtual Actor* copy(Space& home);
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/// Perform propagation
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virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
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/// Post propagator \f$ x\neq y \f$
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static ExecStatus post(Home home, View0 x, ConstSetView y);
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};
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}}}
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#include <gecode/set/rel/common.hpp>
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#include <gecode/set/rel/subset.hpp>
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#include <gecode/set/rel/nosubset.hpp>
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#include <gecode/set/rel/re-subset.hpp>
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#include <gecode/set/rel/eq.hpp>
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#include <gecode/set/rel/re-eq.hpp>
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#include <gecode/set/rel/nq.hpp>
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#include <gecode/set/rel/lq.hpp>
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#include <gecode/set/rel/re-lq.hpp>
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#endif
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// STATISTICS: set-prop
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