cumulatives.hh

00001 /* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
00002 /*
00003  *  Main authors:
00004  *     Mikael Lagerkvist <lagerkvist@gecode.org>
00005  *
00006  *  Copyright:
00007  *     Mikael Lagerkvist, 2005
00008  *
00009  *  Last modified:
00010  *     $Date: 2011-07-13 14:17:55 +0200 (Wed, 13 Jul 2011) $ by $Author: tack $
00011  *     $Revision: 12188 $
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 #ifndef __GECODE_INT_CUMULATIVES_HH__
00039 #define __GECODE_INT_CUMULATIVES_HH__
00040 
00041 #include <gecode/int.hh>
00042 
00043 namespace Gecode { namespace Int { namespace Cumulatives {
00044 
00089   template<class ViewM, class ViewP, class ViewU, class View>
00090   class Val : public Propagator {
00091   protected:
00092     ViewArray<ViewM>  m;
00093     ViewArray<View>   s;
00094     ViewArray<ViewP>  p;
00095     ViewArray<View>   e;
00096     ViewArray<ViewU>  u;
00097     SharedArray<int>  c;
00098     const bool        at_most;
00099 
00100     Val(Space& home, bool share, Val<ViewM, ViewP, ViewU, View>& p);
00101     Val(Home home, const ViewArray<ViewM>&, const ViewArray<View>&,
00102         const ViewArray<ViewP>&, const ViewArray<View>&,
00103         const ViewArray<ViewU>&, const SharedArray<int>&, bool);
00104 
00105     ExecStatus prune(Space& home, int low, int up, int r,
00106                      int ntask, int su,
00107                      int* contribution,
00108                      int* prune_tasks, int& prune_tasks_size);
00109   public:
00111     virtual Actor* copy(Space& home, bool share);
00113     virtual PropCost cost(const Space& home, const ModEventDelta& med) const;
00115     virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
00117     static ExecStatus post(Home home, const ViewArray<ViewM>&,
00118                            const ViewArray<View>&, const ViewArray<ViewP>&,
00119                            const ViewArray<View>&, const ViewArray<ViewU>&,
00120                            const SharedArray<int>&, bool);
00122     virtual size_t dispose(Space& home);
00123   };
00124 
00125 
00126 }}}
00127 
00128 #include <gecode/int/cumulatives/val.hpp>
00129 
00130 #endif
00131 
00132 // STATISTICS: int-prop
00133