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1.8.3.1
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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* Last modified:
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* $Date: 2009-10-13 02:36:53 +1100 (Tue, 13 Oct 2009) $ by $Author: schulte $
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* $Revision: 9878 $
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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,
bool
share,
SeqU
& p)
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:
NaryOnePropagator
<
SetView
,
PC_SET_ANY
>(home,share,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
(x.
shared
(home) || x.
shared
(home,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