gecode » iter
virtual-ranges.hpp

00001 /* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
00002 /*
00003  *  Main authors:
00004  *     Guido Tack <tack@gecode.org>
00005  *
00006  *  Copyright:
00007  *     Guido Tack, 2006
00008  *
00009  *  Last modified:
00010  *     $Date: 2009-09-08 21:10:29 +0200 (Tue, 08 Sep 2009) $ by $Author: schulte $
00011  *     $Revision: 9692 $
00012  *
00013  *  This file is part of Gecode, the generic constraint
00014  *  development environment:
00015  *     http://www.gecode.org
00016  *
00017  *  Permission is hereby granted, free of charge, to any person obtaining
00018  *  a copy of this software and associated documentation files (the
00019  *  "Software"), to deal in the Software without restriction, including
00020  *  without limitation the rights to use, copy, modify, merge, publish,
00021  *  distribute, sublicense, and/or sell copies of the Software, and to
00022  *  permit persons to whom the Software is furnished to do so, subject to
00023  *  the following conditions:
00024  *
00025  *  The above copyright notice and this permission notice shall be
00026  *  included in all copies or substantial portions of the Software.
00027  *
00028  *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
00029  *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
00030  *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
00031  *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
00032  *  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
00033  *  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
00034  *  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
00035  *
00036  */
00037 
00038 namespace Gecode { namespace Iter { namespace Ranges { namespace Virt {
00039 
00045   class Iterator {
00046   public:
00048 
00049 
00050     virtual void operator ++(void) = 0;
00052     virtual bool operator ()(void) = 0;
00054 
00055 
00056 
00057     virtual int min(void) const = 0;
00059     virtual int max(void) const = 0;
00061     virtual unsigned int width(void) const = 0;
00063 
00065     virtual ~Iterator(void);
00066   };
00067 
00068   forceinline
00069   Iterator::~Iterator(void) {}
00070 
00079   template<class I>
00080   class RangesTemplate : public Iterator {
00081   private:
00083     IsRangeIter<I> _checkI;
00084   private:
00086     I i;
00087   public:
00089 
00090 
00091     RangesTemplate(I& i);
00093     void init(I& i);
00095 
00096 
00097 
00098     virtual void operator ++(void);
00100     virtual bool operator ()(void);
00102 
00104 
00105 
00106     virtual int min(void) const;
00108     virtual int max(void) const;
00110     virtual unsigned int width(void) const;
00112   };
00113 
00114   template<class I>
00115   RangesTemplate<I>::RangesTemplate(I& i0) : i(i0) {}
00116 
00117   template<class I>
00118   void
00119   RangesTemplate<I>::init(I& i0) { i=i0; }
00120 
00121   template<class I>
00122   bool
00123   RangesTemplate<I>::operator ()(void) { return i(); }
00124 
00125   template<class I>
00126   void
00127   RangesTemplate<I>::operator ++(void) { ++i; }
00128 
00129   template<class I>
00130   int
00131   RangesTemplate<I>::min(void) const { return i.min(); }
00132 
00133   template<class I>
00134   int
00135   RangesTemplate<I>::max(void) const { return i.max(); }
00136 
00137   template<class I>
00138   unsigned int
00139   RangesTemplate<I>::width(void) const { return i.width(); }
00140 
00141 }}}}
00142 
00143 // STATISTICS: iter-any