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gecode
set
rel
eq.hpp
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/* -*- 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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namespace
Gecode
{
namespace
Set {
namespace
Rel {
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template
<
class
View0,
class
View1>
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forceinline
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Eq<View0,View1>::Eq
(
Home
home, View0
x
, View1
y
)
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:
MixBinaryPropagator
<View0,
PC_SET_ANY
,View1,
PC_SET_ANY
>(home,
x
,
y
) {}
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template
<
class
View0,
class
View1>
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forceinline
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Eq<View0,View1>::Eq
(
Space
& home,
Eq
&
p
)
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:
MixBinaryPropagator
<View0,
PC_SET_ANY
,View1,
PC_SET_ANY
>(home,
p
) {}
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template
<
class
View0,
class
View1>
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ExecStatus
54
Eq<View0,View1>::post
(
Home
home, View0
x
, View1
y
) {
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if
(!
same
(
x
,
y
))
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(void)
new
(home)
Eq
(home,
x
,
y
);
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return
ES_OK
;
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}
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template
<
class
View0,
class
View1>
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Actor
*
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Eq<View0,View1>::copy
(
Space
& home) {
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return
new
(home)
Eq
(home,*
this
);
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}
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template
<
class
View0,
class
View1>
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ExecStatus
68
Eq<View0,View1>::propagate
(
Space
& home,
const
ModEventDelta
& med) {
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ModEvent
me0 = View0::me(med);
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ModEvent
me1 = View1::me(med);
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Region
r
;
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if
(
testSetEventLB
(me0,me1)) {
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GlbRanges<View0>
x0lb(x0);
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GlbRanges<View1>
x1lb(x1);
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Iter::Ranges::Union<GlbRanges<View0>
,
GlbRanges<View1>
> lbu(x0lb,x1lb);
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Iter::Ranges::Cache
lbuc(
r
,lbu);
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GECODE_ME_CHECK
(x0.includeI(home,lbuc));
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lbuc.
reset
();
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GECODE_ME_CHECK
(x1.includeI(home,lbuc));
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}
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if
(
testSetEventUB
(me0,me1)) {
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LubRanges<View0>
x0ub(x0);
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LubRanges<View1>
x1ub(x1);
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Iter::Ranges::Inter<LubRanges<View0>
,
LubRanges<View1>
> ubi(x0ub,x1ub);
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Iter::Ranges::Cache
ubic(
r
,ubi);
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GECODE_ME_CHECK
(x0.intersectI(home,ubic));
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ubic.
reset
();
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GECODE_ME_CHECK
(x1.intersectI(home,ubic));
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}
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if
(
testSetEventCard
(me0,me1)) {
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unsigned
int
max
=
std::min
(x0.cardMax(),x1.cardMax());
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unsigned
int
min
=
std::max
(x0.cardMin(),x1.cardMin());
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GECODE_ME_CHECK
(x0.cardMax(home,
max
));
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GECODE_ME_CHECK
(x1.cardMax(home,
max
));
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GECODE_ME_CHECK
(x0.cardMin(home,
min
));
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GECODE_ME_CHECK
(x1.cardMin(home,
min
));
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}
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if
(x0.assigned()) {
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assert (x1.assigned());
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return
home.
ES_SUBSUMED
(*
this
);
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}
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return
shared
(x0,x1) ?
ES_NOFIX
:
ES_FIX
;
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}
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}}}
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// STATISTICS: set-prop
Gecode::x
Post propagator for SetVar x
Definition:
set.hh:767
Gecode::y
Post propagator for SetVar SetOpType SetVar y
Definition:
set.hh:767
Gecode::max
void max(Home home, FloatVar x0, FloatVar x1, FloatVar x2)
Post propagator for .
Definition:
arithmetic.cpp:49
Gecode::Space::ES_SUBSUMED
ExecStatus ES_SUBSUMED(Propagator &p)
Definition:
core.hpp:3563
Gecode::Set::Rel::Eq
Propagator for set equality
Definition:
rel.hh:150
Gecode::Float::Limits::min
const FloatNum min
Smallest allowed float value.
Definition:
float.hh:846
Gecode::Space
Computation spaces.
Definition:
core.hpp:1742
Gecode::Actor
Base-class for both propagators and branchers.
Definition:
core.hpp:628
Gecode::Iter::Ranges::RangeListIter::reset
void reset(void)
Reset iterator to start.
Definition:
ranges-list.hpp:240
Gecode::Set::Rel::testSetEventCard
bool testSetEventCard(ModEvent me0, ModEvent me1, ModEvent me2)
Definition:
common.hpp:95
Gecode
Gecode toplevel namespace
Gecode::MixBinaryPropagator
Mixed binary propagator.
Definition:
pattern.hpp:204
Gecode::Set::Rel::testSetEventUB
bool testSetEventUB(ModEvent me0, ModEvent me1, ModEvent me2)
Definition:
common.hpp:87
Gecode::Home
Home class for posting propagators
Definition:
core.hpp:856
Gecode::Set::Rel::same
bool same(VX, VY)
Test whether two views are in fact the same.
Definition:
common.hpp:57
Gecode::Region
Handle to region.
Definition:
region.hpp:55
Gecode::Set::Rel::Eq::propagate
virtual ExecStatus propagate(Space &home, const ModEventDelta &med)
Perform propagation.
Definition:
eq.hpp:68
Gecode::Iter::Ranges::Inter
Range iterator for computing intersection (binary)
Definition:
ranges-inter.hpp:44
Gecode::r
Post propagator for SetVar SetOpType SetVar SetRelType r
Definition:
set.hh:767
Gecode::Set::GlbRanges
Range iterator for the greatest lower bound.
Definition:
var-imp.hpp:359
Gecode::Set::Rel::Eq::copy
virtual Actor * copy(Space &home)
Copy propagator during cloning.
Definition:
eq.hpp:62
Gecode::Set::Rel::Eq::Eq
Eq(Space &home, Eq &p)
Constructor for cloning p.
Definition:
eq.hpp:49
Gecode::ModEvent
int ModEvent
Type for modification events.
Definition:
core.hpp:62
Gecode::Iter::Ranges::Cache
Range iterator cache
Definition:
ranges-cache.hpp:45
Gecode::Iter::Ranges::Union
Range iterator for computing union (binary)
Definition:
ranges-union.hpp:44
Gecode::shared
bool shared(ViewArray< ViewX > x, ViewArray< ViewY > y)
Definition:
array.hpp:1466
Gecode::ES_FIX
@ ES_FIX
Propagation has computed fixpoint.
Definition:
core.hpp:477
Gecode::Set::LubRanges
Range iterator for the least upper bound.
Definition:
var-imp.hpp:317
forceinline
#define forceinline
Definition:
config.hpp:185
Gecode::Set::PC_SET_ANY
const Gecode::PropCond PC_SET_ANY
Propagate when any bound or the cardinality of a view changes.
Definition:
var-type.hpp:248
GECODE_ME_CHECK
#define GECODE_ME_CHECK(me)
Check whether modification event me is failed, and forward failure.
Definition:
macros.hpp:52
Gecode::Set::Rel::testSetEventLB
bool testSetEventLB(ModEvent me0, ModEvent me1, ModEvent me2)
Definition:
common.hpp:83
Gecode::min
void min(Home home, FloatVar x0, FloatVar x1, FloatVar x2)
Post propagator for .
Definition:
arithmetic.cpp:67
Gecode::ModEventDelta
int ModEventDelta
Modification event deltas.
Definition:
core.hpp:89
Gecode::ES_NOFIX
@ ES_NOFIX
Propagation has not computed fixpoint.
Definition:
core.hpp:475
Gecode::ES_OK
@ ES_OK
Execution is okay.
Definition:
core.hpp:476
p
int p
Number of positive literals for node type.
Definition:
bool-expr.cpp:232
Gecode::Set::Rel::Eq::post
static ExecStatus post(Home home, View0 x, View1 y)
Post propagator .
Definition:
eq.hpp:54
Gecode::Float::Limits::max
const FloatNum max
Largest allowed float value.
Definition:
float.hh:844
Gecode::ExecStatus
ExecStatus
Definition:
core.hpp:472