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1.8.4
gecode
int
unary
overload.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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* Christian Schulte <schulte@gecode.org>
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*
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* Copyright:
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* Christian Schulte, 2009
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*
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* Last modified:
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* $Date: 2012-09-07 17:31:22 +0200 (Fri, 07 Sep 2012) $ by $Author: schulte $
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* $Revision: 13068 $
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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
Int {
namespace
Unary {
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// Overload checking for mandatory tasks
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template
<
class
ManTask>
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ExecStatus
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overload
(
Space
& home,
TaskArray<ManTask>
&
t
) {
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TaskViewArray<typename TaskTraits<ManTask>::TaskViewFwd
> f(t);
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sort<typename TaskTraits<ManTask>::TaskViewFwd,
STO_LCT
,
true
>(f);
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Region
r
(home);
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OmegaTree<typename TaskTraits<ManTask>::TaskViewFwd
> o(r,f);
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for
(
int
i
=0;
i
<f.
size
();
i
++) {
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o.
insert
(
i
);
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if
(o.
ect
() > f[
i
].lct())
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return
ES_FAILED
;
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}
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return
ES_OK
;
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}
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// Overload checking for optional tasks
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template
<
class
OptTask>
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ExecStatus
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overload
(
Space
& home,
Propagator
&
p
,
TaskArray<OptTask>
&
t
) {
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TaskViewArray<typename TaskTraits<OptTask>::TaskViewFwd
> f(t);
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sort<typename TaskTraits<OptTask>::TaskViewFwd,
STO_LCT
,
true
>(f);
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Region
r
(home);
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OmegaLambdaTree<typename TaskTraits<OptTask>::TaskViewFwd
> ol(r,f,
false
);
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bool
to_purge =
false
;
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for
(
int
i
=0;
i
<f.
size
();
i
++) {
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if
(f[
i
].
optional
()) {
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ol.
linsert
(
i
);
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}
else
if
(f[
i
].mandatory()) {
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ol.
oinsert
(
i
);
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if
(ol.
ect
() > f[
i
].lct())
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return
ES_FAILED
;
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}
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while
(!ol.
lempty
() && (ol.
lect
() > f[
i
].lct())) {
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int
j = ol.
responsible
();
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GECODE_ME_CHECK
(f[j].excluded(home));
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ol.
lremove
(j);
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to_purge =
true
;
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}
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}
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if
(to_purge)
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GECODE_ES_CHECK
((purge<OptTask,Int::PC_INT_BND>(home,p,t)));
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return
ES_OK
;
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}
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}}}
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// STATISTICS: int-prop