/usr/include/gecode/int/trace/int-trace-view.hpp is in libgecode-dev 5.1.0-2build1.
This file is owned by root:root, with mode 0o644.
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/*
* Main authors:
* Christian Schulte <schulte@gecode.org>
*
* Copyright:
* Christian Schulte, 2016
*
* Last modified:
* $Date: 2017-03-17 23:04:57 +0100 (Fri, 17 Mar 2017) $ by $Author: schulte $
* $Revision: 15597 $
*
* 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.
*
*/
namespace Gecode { namespace Int {
/// Duplicate of an integer view
class IntTraceView {
protected:
/// Ranges capturing the variable domain
RangeList* dom;
public:
/// Default constructor (initializes with no view)
IntTraceView(void);
/// Duplicate view \a y
IntTraceView(Space& home, IntView y);
/// Give access to ranges
RangeList* ranges(void) const;
/// Update duplicated view from view \a y and modification delta \a d
void prune(Space& home, IntView y, const Delta& d);
/// Update during cloning
void update(Space& home, bool share, IntTraceView x);
/// Return slack measure
static unsigned long long int slack(IntView x);
};
forceinline
IntTraceView::IntTraceView(void) {}
forceinline
IntTraceView::IntTraceView(Space& home, IntView y) {
ViewRanges<IntView> yr(y);
RangeList::copy(home, dom, yr);
}
forceinline RangeList*
IntTraceView::ranges(void) const {
return dom;
}
forceinline void
IntTraceView::prune(Space& home, IntView y, const Delta& d) {
if (y.range() && (dom->next() == NULL)) {
dom->min(y.min()); dom->max(y.max());
} else if (!y.any(d) && (y.max(d)+1 == y.min())) {
// The lower bound has been adjusted
if (y.min() > dom->max()) {
RangeList* p = dom;
RangeList* l = p->next();
while ((l != NULL) && (l->max() < y.min())) {
p=l; l=l->next();
}
dom->dispose(home,p);
dom = l;
}
dom->min(y.min());
} else if (!y.any(d) && (y.max()+1 == y.min(d))) {
// upper bound has been adjusted
if ((y.max() <= dom->max()) && (dom->next() == NULL)) {
dom->max(y.max());
} else {
RangeList* p = dom;
RangeList* l = p->next();
while ((l != NULL) && (l->min() <= y.max())) {
p=l; l=l->next();
}
p->max(y.max());
if (p->next() != NULL)
p->next()->dispose(home);
p->next(NULL);
}
} else {
// Just copy the domain
ViewRanges<IntView> yr(y);
RangeList::overwrite(home,dom,yr);
}
}
forceinline void
IntTraceView::update(Space& home, bool, IntTraceView y) {
Iter::Ranges::RangeList yr(y.dom);
RangeList::copy(home,dom,yr);
}
forceinline unsigned long long int
IntTraceView::slack(IntView x) {
return x.width()-1;
}
}}
// STATISTICS: int-trace
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