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values-minus.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, 2007
00008  *
00009  *  Last modified:
00010  *     $Date: 2010-07-28 16:13:53 +0200 (Wed, 28 Jul 2010) $ by $Author: schulte $
00011  *     $Revision: 11292 $
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 Values {
00039 
00051   template<class I>
00052   class Minus : public ValueListIter {
00053   public:
00055 
00056 
00057     Minus(void);
00059     Minus(const Minus& m);
00061     Minus(Region& r, I& i);
00063     void init(Region& r, I& i);
00065     Minus& operator =(const Minus& m);
00067   };
00068 
00069 
00070   template<class I>
00071   forceinline
00072   Minus<I>::Minus(void) {}
00073 
00074   template<class I>
00075   forceinline
00076   Minus<I>::Minus(const Minus& m) 
00077     : ValueListIter(m) {}
00078 
00079   template<class I>
00080   void
00081   Minus<I>::init(Region& r, I& i) {
00082     ValueListIter::init(r);
00083     ValueList* p = NULL;
00084     for (; i(); ++i) {
00085       ValueList* t = new (*vlio) ValueList;
00086       t->next = p;
00087       t->val = -i.val();
00088       p = t;
00089     }
00090     ValueListIter::set(p);
00091   }
00092 
00093   template<class I>
00094   forceinline
00095   Minus<I>::Minus(Region& r, I& i) {
00096     init(r,i);
00097   }
00098 
00099   template<class I>
00100   forceinline Minus<I>&
00101   Minus<I>::operator =(const Minus<I>& m) {
00102     return static_cast<Minus&>(ValueListIter::operator =(m));
00103   }
00104 
00105 }}}
00106 
00107 // STATISTICS: iter-any