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idx-view.hh

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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  *     Guido Tack <tack@gecode.org>
00006  *
00007  *  Copyright:
00008  *     Christian Schulte, 2004
00009  *     Guido Tack, 2004
00010  *
00011  *  This file is part of Gecode, the generic constraint
00012  *  development environment:
00013  *     http://www.gecode.org
00014  *
00015  *  Permission is hereby granted, free of charge, to any person obtaining
00016  *  a copy of this software and associated documentation files (the
00017  *  "Software"), to deal in the Software without restriction, including
00018  *  without limitation the rights to use, copy, modify, merge, publish,
00019  *  distribute, sublicense, and/or sell copies of the Software, and to
00020  *  permit persons to whom the Software is furnished to do so, subject to
00021  *  the following conditions:
00022  *
00023  *  The above copyright notice and this permission notice shall be
00024  *  included in all copies or substantial portions of the Software.
00025  *
00026  *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
00027  *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
00028  *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
00029  *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
00030  *  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
00031  *  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
00032  *  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
00033  *
00034  */
00035 
00036 #ifndef __GECODE_INT_IDX_VIEW_HH__
00037 #define __GECODE_INT_IDX_VIEW_HH__
00038 
00039 #include <gecode/int.hh>
00040 
00041 namespace Gecode { namespace Int {
00042 
00047   template<class View>
00048   class IdxView {
00049   public:
00051     int idx;
00053     View view;
00055     static IdxView* allocate(Space& home, int n);
00056   };
00057 
00059   template<class View>
00060   class ViewToVarArg {};
00061 
00066   template<class View>
00067   class IdxViewArray {
00068   private:
00070     IdxView<View>* xs;
00072     int n;
00073   public:
00075     IdxViewArray(void);
00077     IdxViewArray(const IdxViewArray<View>&);
00079     IdxViewArray(Space& home, const typename ViewToVarArg<View>::argtype& x);
00081     IdxViewArray(Space& home, int n);
00082 
00084     int size(void) const;
00086     void size(int n);
00087 
00089     IdxView<View>& operator [](int n);
00091     const IdxView<View>& operator [](int) const;
00092 
00097     void subscribe(Space& home, Propagator& p, PropCond pc, bool process=true);
00102     void cancel(Space& home, Propagator& p, PropCond pc);
00104     void reschedule(Space& home, Propagator& p, PropCond pc);
00105 
00107     void update(Space& home, IdxViewArray<View>& x);
00108   };
00109 
00114   template<class Char, class Traits, class View>
00115   std::basic_ostream<Char,Traits>&
00116   operator <<(std::basic_ostream<Char,Traits>& os,
00117               const IdxViewArray<View>& x);
00118 
00119 }}
00120 
00121 #include <gecode/int/idx-view.hpp>
00122 
00123 #endif
00124 
00125 
00126 // STATISTICS: int-prop
00127