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1.8.17
gecode
set
int
card.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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* 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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* Last modified:
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* $Date: 2010-03-30 15:34:12 +0200 (Tue, 30 Mar 2010) $ by $Author: tack $
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* $Revision: 10603 $
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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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#include <
gecode/set.hh
>
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#include <
gecode/int.hh
>
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namespace
Gecode
{
namespace
Set {
namespace
Int {
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template
<
class
View>
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forceinline
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Card<View>::Card
(
Home
home, View y0,
Gecode::Int::IntView
y1)
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:
MixBinaryPropagator
<View,
PC_SET_CARD
,
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Gecode
::Int::
IntView
,
Gecode
::Int::
PC_INT_BND
> (home, y0, y1) {}
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template
<
class
View>
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forceinline
ExecStatus
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Card<View>::post
(
Home
home, View x0,
Gecode::Int::IntView
x1) {
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GECODE_ME_CHECK
(x1.
gq
(home,0));
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GECODE_ME_CHECK
(x0.cardMax(home,
Gecode::Int::Limits::max
));
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(void)
new
(home)
Card
(home,x0,x1);
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return
ES_OK
;
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}
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template
<
class
View>
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forceinline
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Card<View>::Card
(
Space
& home,
bool
share,
Card
&
p
)
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:
MixBinaryPropagator
<View,
PC_SET_CARD
,
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Gecode
::Int::
IntView
,
Gecode
::Int::
PC_INT_BND
> (home, share,
p
) {}
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template
<
class
View>
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Actor
*
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Card<View>::copy
(
Space
& home,
bool
share) {
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return
new
(home)
Card
(home,share,*
this
);
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}
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template
<
class
View>
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ExecStatus
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Card<View>::propagate
(
Space
& home,
const
ModEventDelta
&) {
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int
x1min, x1max;
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do
{
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x1min = x1.min();
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x1max = x1.max();
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GECODE_ME_CHECK
(x0.cardMin(home,
static_cast<
unsigned
int
>
(x1min)));
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GECODE_ME_CHECK
(x0.cardMax(home,
static_cast<
unsigned
int
>
(x1max)));
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GECODE_ME_CHECK
(x1.gq(home,
static_cast<
int
>
(x0.cardMin())));
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GECODE_ME_CHECK
(x1.lq(home,
static_cast<
int
>
(x0.cardMax())));
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}
while
(x1.min() > x1min || x1.max() < x1max);
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if
(x1.assigned())
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return
home.
ES_SUBSUMED
(*
this
);
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return
ES_FIX
;
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}
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}}}
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// STATISTICS: set-prop
forceinline
#define forceinline
Definition:
config.hpp:173
Gecode::Set::Int::Card::copy
virtual Actor * copy(Space &home, bool)
Copy propagator during cloning.
Definition:
card.hpp:70
Gecode::Space::ES_SUBSUMED
ExecStatus ES_SUBSUMED(Propagator &p)
Definition:
core.hpp:3614
int.hh
Gecode::Space
Computation spaces.
Definition:
core.hpp:1748
Gecode::Actor
Base-class for both propagators and branchers.
Definition:
core.hpp:696
Gecode::Set::Int::Card::Card
Card(Space &home, bool share, Card &p)
Constructor for cloning p.
Definition:
card.hpp:64
Gecode
Gecode toplevel namespace
Gecode::MixBinaryPropagator
Mixed binary propagator.
Definition:
propagator.hpp:213
Gecode::Home
Home class for posting propagators
Definition:
core.hpp:922
Gecode::Set::PC_SET_CARD
const Gecode::PropCond PC_SET_CARD
Propagate when the cardinality of a view changes.
Definition:
var-type.hpp:216
Gecode::Int::Limits::max
const int max
Largest allowed integer value.
Definition:
int.hh:116
Gecode::Int::PC_INT_BND
const Gecode::PropCond PC_INT_BND
Propagate when minimum or maximum of a view changes.
Definition:
var-type.hpp:91
Gecode::ES_FIX
@ ES_FIX
Propagation has computed fixpoint.
Definition:
core.hpp:545
Gecode::Set::Int::Card
Propagator for cardinality
Definition:
int.hh:233
Gecode::Int::IntView
Integer view for integer variables.
Definition:
view.hpp:129
set.hh
GECODE_ME_CHECK
#define GECODE_ME_CHECK(me)
Check whether modification event me is failed, and forward failure.
Definition:
macros.hpp:56
Gecode::Int::IntView::gq
ModEvent gq(Space &home, int n)
Restrict domain values to be greater or equal than n.
Definition:
int.hpp:133
Gecode::Set::Int::Card::propagate
virtual ExecStatus propagate(Space &home, const ModEventDelta &med)
Perform propagation.
Definition:
card.hpp:76
Gecode::Set::Int::Card::post
static ExecStatus post(Home home, View s, Gecode::Int::IntView x)
Post propagator for .
Definition:
card.hpp:55
Gecode::ModEventDelta
int ModEventDelta
Modification event deltas.
Definition:
core.hpp:169
Gecode::ES_OK
@ ES_OK
Execution is okay.
Definition:
core.hpp:544
p
int p
Number of positive literals for node type.
Definition:
bool-expr.cpp:236
Gecode::ExecStatus
ExecStatus
Definition:
core.hpp:540