base.hpp
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/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
* Main authors:
* Christian Schulte <schulte@gecode.org>
*
* Copyright:
* Christian Schulte, 2006
*
* 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
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* permit persons to whom the Software is furnished to do so, subject to
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*
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*
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namespace Gecode { namespace Int { namespace Channel {
template<class Info, class Offset, PropCond pc>
forceinline
Base<Info,Offset,pc>::Base(Home home, int n0, Info* xy0,
Offset& ox0, Offset& oy0)
: Propagator(home), n(n0), n_na(2*n), ox(ox0), oy(oy0), xy(xy0) {
for (int i=0; i<2*n; i++)
xy[i].view.subscribe(home,*this,pc);
}
template<class Info, class Offset, PropCond pc>
forceinline
Base<Info,Offset,pc>::Base(Space& home, Base<Info,Offset,pc>& p)
: Propagator(home,p), n(p.n), n_na(p.n_na),
xy(home.alloc<Info>(2*n)) {
ox.update(p.ox);
oy.update(p.oy);
for (int i=0; i<2*n; i++)
xy[i].update(home,p.xy[i]);
}
template<class Info, class Offset, PropCond pc>
PropCost
Base<Info,Offset,pc>::cost(const Space&, const ModEventDelta&) const {
return PropCost::quadratic(PropCost::LO, 2*n);
}
template<class Info, class Offset, PropCond pc>
void
Base<Info,Offset,pc>::reschedule(Space& home) {
for (int i=0; i<2*n; i++)
xy[i].view.reschedule(home,*this,pc);
}
template<class Info, class Offset, PropCond pc>
forceinline size_t
Base<Info,Offset,pc>::dispose(Space& home) {
for (int i=0; i<2*n; i++)
xy[i].view.cancel(home,*this,pc);
(void) Propagator::dispose(home);
return sizeof(*this);
}
}}}
// STATISTICS: int-prop
Gecode::Actor::dispose
virtual size_t dispose(Space &home)
Delete actor and return its size.
Definition core.hpp:3252
Gecode::Home
Home class for posting propagators
Definition core.hpp:856
Gecode::Int::Channel::Base::Base
Base(Space &home, Base< Info, Offset, pc > &p)
Constructor for cloning p.
Definition base.hpp:47
Gecode::Int::Channel::Base::oy
Offset oy
Offset transformation for y variables.
Definition channel.hh:64
Gecode::Int::Channel::Base::n
int n
Number of views (actually twice as many for both x and y).
Definition channel.hh:58
Gecode::Int::Channel::Base::ox
Offset ox
Offset transformation for x variables.
Definition channel.hh:62
Gecode::Int::Channel::Base::n_na
int n_na
Total number of not assigned views (not known to be assigned).
Definition channel.hh:60
Gecode::Int::Channel::Base::dispose
virtual size_t dispose(Space &home)
Delete propagator and return its size.
Definition base.hpp:71
Gecode::Int::Channel::Base::cost
virtual PropCost cost(const Space &home, const ModEventDelta &med) const
Propagation cost (defined as low quadratic).
Definition base.hpp:58
Gecode::Int::Channel::Base::xy
Info * xy
View and information for both x and y.
Definition channel.hh:66
Gecode::Int::Channel::Base::reschedule
virtual void reschedule(Space &home)
Schedule function.
Definition base.hpp:64
Gecode::Int::Offset
Converter with fixed offset.
Definition view.hpp:650
Gecode::PropCost
Propagation cost.
Definition core.hpp:486
Gecode::PropCost::quadratic
static PropCost quadratic(PropCost::Mod m, unsigned int n)
Quadratic complexity for modifier m and size measure n.
Definition core.hpp:4787
Gecode::PropCost::LO
@ LO
Cheap.
Definition core.hpp:513
Gecode::Propagator::Space
friend class Space
Definition core.hpp:1066
Gecode::Propagator::Propagator
Propagator(Home home)
Constructor for posting.
Definition core.hpp:3498
Gecode::ModEventDelta
int ModEventDelta
Modification event deltas.
Definition core.hpp:89
Gecode::Int::Channel
Channel propagators
Gecode::Int
Finite domain integers.
Gecode
Gecode toplevel namespace
forceinline
#define forceinline
Definition config.hpp:187