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gecode
set
sequence
seq-u.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
Sequence {
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/*
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* "Sequenced union" propagator
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*
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*/
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forceinline
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SeqU::SeqU
(
Home
home,
ViewArray<SetView>
&
x
,
SetView
y
)
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:
NaryOnePropagator
<
SetView
,
PC_SET_ANY
>(home,
x
,
y
) {}
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forceinline
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SeqU::SeqU
(
Space
& home,
SeqU
&
p
)
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:
NaryOnePropagator
<
SetView
,
PC_SET_ANY
>(home,
p
) {
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unionOfDets
.
update
(home,
p
.unionOfDets);
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}
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forceinline
ExecStatus
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SeqU::post
(
Home
home,
ViewArray<SetView>
x
,
SetView
y
) {
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switch
(
x
.
size
()) {
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case
0:
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GECODE_ME_CHECK
(
y
.
cardMax
(home, 0));
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return
ES_OK
;
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case
1:
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return
Rel::Eq<SetView,SetView>::post
(home,
x
[0],
y
);
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default
:
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if
(
shared
(
x
) ||
shared
(
x
,
y
))
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return
ES_FAILED
;
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(void)
new
(home)
SeqU
(home,
x
,
y
);
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return
ES_OK
;
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}
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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::Set::SetView::cardMax
unsigned int cardMax(void) const
Return maximum cardinality.
Definition:
set.hpp:86
Gecode::y
Post propagator for SetVar SetOpType SetVar y
Definition:
set.hh:767
Gecode::NaryOnePropagator< SetView, PC_SET_ANY >::y
SetView y
Single view.
Definition:
pattern.hpp:177
Gecode::Set::Sequence::SeqU::SeqU
SeqU(Space &home, SeqU &p)
Constructor for cloning p.
Definition:
seq-u.hpp:52
Gecode::Space
Computation spaces.
Definition:
core.hpp:1742
Gecode::NaryOnePropagator< SetView, PC_SET_ANY >::x
ViewArray< SetView > x
Array of views.
Definition:
pattern.hpp:175
Gecode
Gecode toplevel namespace
Gecode::Home
Home class for posting propagators
Definition:
core.hpp:856
Gecode::NaryOnePropagator
(n+1)-ary propagator
Definition:
pattern.hpp:172
Gecode::Set::BndSet::update
void update(Space &home, BndSet &x)
Update this set to be a clone of set x.
Definition:
integerset.hpp:140
Gecode::Set::Sequence::SeqU::post
static ExecStatus post(Home home, ViewArray< SetView >, SetView)
Post propagator and .
Definition:
seq-u.hpp:58
Gecode::Set::SetView
Set view for set variables
Definition:
view.hpp:56
Gecode::shared
bool shared(ViewArray< ViewX > x, ViewArray< ViewY > y)
Definition:
array.hpp:1466
Gecode::ViewArray::size
int size(void) const
Return size of array (number of elements)
Definition:
array.hpp:1156
forceinline
#define forceinline
Definition:
config.hpp:192
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::Set::Sequence::SeqU::unionOfDets
GLBndSet unionOfDets
Definition:
sequence.hh:83
GECODE_ME_CHECK
#define GECODE_ME_CHECK(me)
Check whether modification event me is failed, and forward failure.
Definition:
macros.hpp:52
Gecode::ViewArray< SetView >
Gecode::ES_FAILED
@ ES_FAILED
Execution has resulted in failure.
Definition:
core.hpp:474
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::Set::Sequence::SeqU
Propagator for the sequenced union constraint
Definition:
sequence.hh:81
Gecode::ExecStatus
ExecStatus
Definition:
core.hpp:472