/usr/include/gecode/int/propagator.hpp is in libgecode-dev 4.4.0-5.
This file is owned by root:root, with mode 0o644.
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/*
* Main authors:
* Christian Schulte <schulte@gecode.org>
*
* Copyright:
* Christian Schulte, 2002
*
* Last modified:
* $Date: 2013-04-17 16:39:27 +0200 (Wed, 17 Apr 2013) $ by $Author: schulte $
* $Revision: 13579 $
*
* 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.
*
*/
namespace Gecode { namespace Int {
/**
* \defgroup TaskPropRePat Reified propagator patterns
*
* \ingroup TaskActor
*/
//@{
/**
* \brief Reified unary propagator
*
* Stores single view of type \a View with propagation condition \a pc
* and a Boolean control view of type \a CtrlView.
*
* If the propagation condition \a pc has the value PC_GEN_NONE, no
* subscriptions are created for \a View.
*
*/
template<class View, PropCond pc, class CtrlView>
class ReUnaryPropagator : public Propagator {
protected:
/// Single view
View x0;
/// Boolean control view
CtrlView b;
/// Constructor for cloning \a p
ReUnaryPropagator(Space& home, bool share, ReUnaryPropagator& p);
/// Constructor for rewriting \a p during cloning
ReUnaryPropagator(Space& home, bool share, Propagator& p,
View x0, CtrlView b);
/// Constructor for creation
ReUnaryPropagator(Home home, View x0, CtrlView b);
public:
/// Cost function (defined as low unary)
virtual PropCost cost(const Space& home, const ModEventDelta& med) const;
/// Delete propagator and return its size
virtual size_t dispose(Space& home);
};
/**
* \brief Reified binary propagator
*
* Stores two views of type \a View with propagation condition \a pc
* and a Boolean control view of type \a CtrlView.
*
* If the propagation condition \a pc has the value PC_GEN_NONE, no
* subscriptions are created for \a View.
*
*/
template<class View, PropCond pc, class CtrlView>
class ReBinaryPropagator : public Propagator {
protected:
/// Two views
View x0, x1;
/// Boolean control view
CtrlView b;
/// Constructor for cloning \a p
ReBinaryPropagator(Space& home, bool share, ReBinaryPropagator& p);
/// Constructor for rewriting \a p during cloning
ReBinaryPropagator(Space& home, bool share, Propagator& p,
View x0, View x1, CtrlView b);
/// Constructor for creation
ReBinaryPropagator(Home home, View x0, View x1, CtrlView b);
public:
/// Cost function (defined as low binary)
virtual PropCost cost(const Space& home, const ModEventDelta& med) const;
/// Delete propagator and return its size
virtual size_t dispose(Space& home);
};
//@}
/**
* \brief Reified mixed binary propagator
*
* Stores two views of type \a View0 and \a View1 with propagation
* conditions \a pc0 and \a pc1 and a Boolean control view of type
* \a CtrlView.
*
* If the propagation conditions \a pc0 or \a pc1 have the values
* PC_GEN_NONE, no subscriptions are created.
*
*/
template<class View0, PropCond pc0, class View1, PropCond pc1,
class CtrlView>
class ReMixBinaryPropagator : public Propagator {
protected:
/// View of type \a View0
View0 x0;
/// View of type \a View1
View1 x1;
/// Boolean control view
CtrlView b;
/// Constructor for cloning \a p
ReMixBinaryPropagator(Space& home, bool share, ReMixBinaryPropagator& p);
/// Constructor for creation
ReMixBinaryPropagator(Home home, View0 x0, View1 x1, CtrlView b);
/// Constructor for rewriting \a p during cloning
ReMixBinaryPropagator(Space& home, bool share, Propagator& p,
View0 x0, View1 x1, CtrlView b);
public:
/// Cost function (defined as low binary)
virtual PropCost cost(const Space& home, const ModEventDelta& med) const;
/// Delete propagator and return its size
virtual size_t dispose(Space& home);
};
/*
* Reified unary propagators
*
*/
template<class View, PropCond pc, class CtrlView>
ReUnaryPropagator<View,pc,CtrlView>::ReUnaryPropagator
(Home home, View y0, CtrlView b0)
: Propagator(home), x0(y0), b(b0) {
if (pc != PC_GEN_NONE)
x0.subscribe(home,*this,pc);
b.subscribe(home,*this,Int::PC_INT_VAL);
}
template<class View, PropCond pc, class CtrlView>
forceinline
ReUnaryPropagator<View,pc,CtrlView>::ReUnaryPropagator
(Space& home, bool share, ReUnaryPropagator<View,pc,CtrlView>& p)
: Propagator(home,share,p) {
x0.update(home,share,p.x0);
b.update(home,share,p.b);
}
template<class View, PropCond pc, class CtrlView>
forceinline
ReUnaryPropagator<View,pc,CtrlView>::ReUnaryPropagator
(Space& home, bool share, Propagator& p, View y0, CtrlView b0)
: Propagator(home,share,p) {
x0.update(home,share,y0);
b.update(home,share,b0);
}
template<class View, PropCond pc, class CtrlView>
PropCost
ReUnaryPropagator<View,pc,CtrlView>::cost(const Space&, const ModEventDelta&) const {
return PropCost::unary(PropCost::LO);
}
template<class View, PropCond pc, class CtrlView>
forceinline size_t
ReUnaryPropagator<View,pc,CtrlView>::dispose(Space& home) {
if (pc != PC_GEN_NONE)
x0.cancel(home,*this,pc);
b.cancel(home,*this,Int::PC_INT_VAL);
(void) Propagator::dispose(home);
return sizeof(*this);
}
/*
* Reified binary propagators
*
*/
template<class View, PropCond pc, class CtrlView>
ReBinaryPropagator<View,pc,CtrlView>::ReBinaryPropagator
(Home home, View y0, View y1, CtrlView b1)
: Propagator(home), x0(y0), x1(y1), b(b1) {
if (pc != PC_GEN_NONE) {
x0.subscribe(home,*this,pc);
x1.subscribe(home,*this,pc);
}
b.subscribe(home,*this,Int::PC_INT_VAL);
}
template<class View, PropCond pc, class CtrlView>
forceinline
ReBinaryPropagator<View,pc,CtrlView>::ReBinaryPropagator
(Space& home, bool share, ReBinaryPropagator<View,pc,CtrlView>& p)
: Propagator(home,share,p) {
x0.update(home,share,p.x0);
x1.update(home,share,p.x1);
b.update(home,share,p.b);
}
template<class View, PropCond pc, class CtrlView>
forceinline
ReBinaryPropagator<View,pc,CtrlView>::ReBinaryPropagator
(Space& home, bool share, Propagator& p, View y0, View y1, CtrlView b0)
: Propagator(home,share,p) {
x0.update(home,share,y0);
x1.update(home,share,y1);
b.update(home,share,b0);
}
template<class View, PropCond pc, class CtrlView>
PropCost
ReBinaryPropagator<View,pc,CtrlView>::cost(const Space&, const ModEventDelta&) const {
return PropCost::binary(PropCost::LO);
}
template<class View, PropCond pc, class CtrlView>
forceinline size_t
ReBinaryPropagator<View,pc,CtrlView>::dispose(Space& home) {
if (pc != PC_GEN_NONE) {
x0.cancel(home,*this,pc);
x1.cancel(home,*this,pc);
}
b.cancel(home,*this,Int::PC_INT_VAL);
(void) Propagator::dispose(home);
return sizeof(*this);
}
/*
* Reified mixed binary propagator
*
*/
template<class View0, PropCond pc0, class View1, PropCond pc1,
class CtrlView>
ReMixBinaryPropagator<View0,pc0,View1,pc1,CtrlView>
::ReMixBinaryPropagator(Home home, View0 y0, View1 y1, CtrlView b1)
: Propagator(home), x0(y0), x1(y1), b(b1) {
if (pc0 != PC_GEN_NONE)
x0.subscribe(home,*this,pc0);
if (pc1 != PC_GEN_NONE)
x1.subscribe(home,*this,pc1);
b.subscribe(home,*this,Int::PC_INT_VAL);
}
template<class View0, PropCond pc0, class View1, PropCond pc1,
class CtrlView>
forceinline
ReMixBinaryPropagator<View0,pc0,View1,pc1,CtrlView>::ReMixBinaryPropagator
(Space& home, bool share,
ReMixBinaryPropagator<View0,pc0,View1,pc1,CtrlView>& p)
: Propagator(home,share,p) {
x0.update(home,share,p.x0);
x1.update(home,share,p.x1);
b.update(home,share,p.b);
}
template<class View0, PropCond pc0, class View1, PropCond pc1,
class CtrlView>
forceinline
ReMixBinaryPropagator<View0,pc0,View1,pc1,CtrlView>
::ReMixBinaryPropagator
(Space& home, bool share, Propagator& p, View0 y0, View1 y1, CtrlView b0)
: Propagator(home,share,p) {
x0.update(home,share,y0);
x1.update(home,share,y1);
b.update(home,share,b0);
}
template<class View0, PropCond pc0, class View1, PropCond pc1,
class CtrlView>
PropCost
ReMixBinaryPropagator<View0,pc0,View1,pc1,CtrlView>
::cost(const Space&, const ModEventDelta&) const {
return PropCost::binary(PropCost::LO);
}
template<class View0, PropCond pc0, class View1, PropCond pc1,
class CtrlView>
forceinline size_t
ReMixBinaryPropagator<View0,pc0,View1,pc1,CtrlView>::dispose(Space& home) {
if (pc0 != PC_GEN_NONE)
x0.cancel(home,*this,pc0);
if (pc1 != PC_GEN_NONE)
x1.cancel(home,*this,pc1);
b.cancel(home,*this,Int::PC_INT_VAL);
(void) Propagator::dispose(home);
return sizeof(*this);
}
}}
// STATISTICS: int-prop
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