/usr/include/gecode/int/unary/edge-finding.hpp is in libgecode-dev 4.4.0-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/*
* Main authors:
* Christian Schulte <schulte@gecode.org>
*
* Copyright:
* Christian Schulte, 2009
*
* Last modified:
* $Date: 2012-09-07 17:31:22 +0200 (Fri, 07 Sep 2012) $ by $Author: schulte $
* $Revision: 13068 $
*
* This file is part of Gecode, the generic constraint
* development environment:
* http://www.gecode.org
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
#include <algorithm>
namespace Gecode { namespace Int { namespace Unary {
template<class TaskView>
forceinline ExecStatus
edgefinding(Space& home, TaskViewArray<TaskView>& t) {
Region r(home);
OmegaLambdaTree<TaskView> ol(r,t);
TaskViewIter<TaskView,STO_LCT,false> q(r,t);
int j = q.task();
while (q.left() > 1) {
if (ol.ect() > t[j].lct())
return ES_FAILED;
ol.shift(j);
++q;
j = q.task();
while (!ol.lempty() && (ol.lect() > t[j].lct())) {
int i = ol.responsible();
GECODE_ME_CHECK(t[i].est(home,ol.ect()));
ol.lremove(i);
}
}
return ES_OK;
}
template<class Task>
ExecStatus
edgefinding(Space& home, TaskArray<Task>& t) {
TaskViewArray<typename TaskTraits<Task>::TaskViewFwd> f(t);
GECODE_ES_CHECK(edgefinding(home,f));
TaskViewArray<typename TaskTraits<Task>::TaskViewBwd> b(t);
return edgefinding(home,b);
}
}}}
// STATISTICS: int-prop
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