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trace-view.hpp

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00001 /* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
00002 /*
00003  *  Main authors:
00004  *     Christian Schulte <schulte@gecode.org>
00005  *
00006  *  Copyright:
00007  *     Christian Schulte, 2016
00008  *
00009  *  This file is part of Gecode, the generic constraint
00010  *  development environment:
00011  *     http://www.gecode.org
00012  *
00013  *  Permission is hereby granted, free of charge, to any person obtaining
00014  *  a copy of this software and associated documentation files (the
00015  *  "Software"), to deal in the Software without restriction, including
00016  *  without limitation the rights to use, copy, modify, merge, publish,
00017  *  distribute, sublicense, and/or sell copies of the Software, and to
00018  *  permit persons to whom the Software is furnished to do so, subject to
00019  *  the following conditions:
00020  *
00021  *  The above copyright notice and this permission notice shall be
00022  *  included in all copies or substantial portions of the Software.
00023  *
00024  *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
00025  *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
00026  *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
00027  *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
00028  *  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
00029  *  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
00030  *  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
00031  *
00032  */
00033 
00034 namespace Gecode { namespace Set {
00035 
00037   class SetTraceView {
00038   protected:
00040     RangeList* _glb;
00042     RangeList* _lub;
00043   public:
00045     SetTraceView(void);
00047     SetTraceView(Space& home, SetView x);
00049     RangeList* glb(void) const;
00051     RangeList* lub(void) const;
00053     void prune(Space& home, SetView y, const Delta& d);
00055     void update(Space& home, SetTraceView x);
00057     static unsigned long long int slack(SetView x);
00058   };
00059 
00060   forceinline
00061   SetTraceView::SetTraceView(void) {}
00062   forceinline
00063   SetTraceView::SetTraceView(Space& home, SetView x) {
00064     GlbRanges<SetView> glbi(x);
00065     RangeList::copy(home,_glb,glbi);
00066     LubRanges<SetView> lubi(x);
00067     RangeList::copy(home,_lub,lubi);
00068   }
00069   forceinline RangeList*
00070   SetTraceView::glb(void) const {
00071     return _glb;
00072   }
00073   forceinline RangeList*
00074   SetTraceView::lub(void) const {
00075     return _lub;
00076   }
00077   forceinline void
00078   SetTraceView::prune(Space& home, SetView x, const Delta&) {
00079     GlbRanges<SetView> glbi(x);
00080     RangeList::overwrite(home,_glb,glbi);
00081     LubRanges<SetView> lubi(x);
00082     RangeList::overwrite(home,_lub,lubi);
00083   }
00084   forceinline void
00085   SetTraceView::update(Space& home, SetTraceView x) {
00086     Iter::Ranges::RangeList glbi(x._glb);
00087     RangeList::copy(home,_glb,glbi);
00088     Iter::Ranges::RangeList lubi(x._lub);
00089     RangeList::copy(home,_lub,lubi);
00090   }
00091 
00092   forceinline unsigned long long int
00093   SetTraceView::slack(SetView x) {
00094     return x.unknownSize();
00095   }
00096 
00097 }}
00098 
00099 // STATISTICS: set-trace