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distinct.hh

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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, 2004
00008  *
00009  *  Last modified:
00010  *     $Date: 2008-01-29 13:37:51 +0100 (Tue, 29 Jan 2008) $ by $Author: tack $
00011  *     $Revision: 5993 $
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_SET_ATMOSTONE_HH__
00039 #define __GECODE_SET_ATMOSTONE_HH__
00040 
00041 #include "gecode/set.hh"
00042 
00043 namespace Gecode { namespace Set { namespace Distinct {
00044 
00057   class AtmostOne :
00058     public NaryPropagator<SetView, PC_SET_ANY> {
00059   protected:
00061     unsigned int c;
00063     AtmostOne(Space* home, bool share,AtmostOne& p);
00065     AtmostOne(Space* home,ViewArray<SetView>&,unsigned int);
00066   public:
00068     GECODE_SET_EXPORT virtual Actor*      copy(Space* home, bool);
00070     GECODE_SET_EXPORT virtual ExecStatus propagate(Space* home, ModEventDelta med);
00072     static ExecStatus post(Space* home,ViewArray<SetView> x,unsigned int c);
00074     GECODE_SET_EXPORT
00075     virtual Reflection::ActorSpec spec(const Space* home,
00076                                         Reflection::VarMap& m) const;
00078     static void post(Space* home, Reflection::VarMap& vars,
00079                      const Reflection::ActorSpec& spec);
00081     static Support::Symbol ati(void);
00082   };
00083 
00084 }}}
00085 
00086 #include "gecode/set/distinct/atmostOne.icc"
00087 
00088 #endif
00089 
00090 // STATISTICS: set-prop