precede.hh

00001 /* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
00002 /*
00003  *  Main authors:
00004  *     Christopher Mears <Chris.Mears@monash.edu>
00005  *
00006  *  Contributing authors:
00007  *     Christian Schulte <schulte@gecode.org>
00008  *     Guido Tack <tack@gecode.org>
00009  *
00010  *  Copyright:
00011  *     Christopher Mears, 2011
00012  *     Christian Schulte, 2011
00013  *     Guido Tack, 2011
00014  *
00015  *  Last modified:
00016  *     $Date: 2011-07-12 12:49:06 +0200 (Tue, 12 Jul 2011) $ by $Author: tack $
00017  *     $Revision: 12172 $
00018  *
00019  *  This file is part of Gecode, the generic constraint
00020  *  development environment:
00021  *     http://www.gecode.org
00022  *
00023  *  Permission is hereby granted, free of charge, to any person obtaining
00024  *  a copy of this software and associated documentation files (the
00025  *  "Software"), to deal in the Software without restriction, including
00026  *  without limitation the rights to use, copy, modify, merge, publish,
00027  *  distribute, sublicense, and/or sell copies of the Software, and to
00028  *  permit persons to whom the Software is furnished to do so, subject to
00029  *  the following conditions:
00030  *
00031  *  The above copyright notice and this permission notice shall be
00032  *  included in all copies or substantial portions of the Software.
00033  *
00034  *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
00035  *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
00036  *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
00037  *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
00038  *  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
00039  *  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
00040  *  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
00041  *
00042  */
00043 
00044 #ifndef __GECODE_SET_PRECEDE_HH__
00045 #define __GECODE_SET_PRECEDE_HH__
00046 
00047 #include <gecode/set.hh>
00048 
00054 namespace Gecode { namespace Set { namespace Precede {
00055     
00066   template<class View>
00067   class Single : public NaryPropagator<View,PC_SET_NONE> {
00068   protected:
00069     using NaryPropagator<View,PC_SET_NONE>::x;
00071     class Index : public Advisor {
00072     public:
00074       int i;
00076       Index(Space& home, Propagator& p, Council<Index>& c, int i);
00078       Index(Space& home, bool share, Index& a);
00079     };
00081     Council<Index> c;
00083     int s, t;
00085     int alpha, beta, gamma;
00087     ExecStatus updateAlpha(Space& home);
00089     ExecStatus updateBeta(Space& home);
00091     Single(Home home, ViewArray<View>& x, int s, int t, int beta, int gamma);
00093     Single(Space& home, bool share, Single<View>& p);
00094   public:
00096     virtual Propagator* copy(Space& home, bool share);
00098     virtual PropCost cost(const Space&, const ModEventDelta&) const;
00100     virtual size_t dispose(Space& home);
00102     virtual ExecStatus advise(Space& home, Advisor& a, const Delta& d);
00104     virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
00106     static ExecStatus post(Home home, ViewArray<View>& x, int s, int t);
00107   };
00108 
00109 }}}
00110 
00111 #include <gecode/set/precede/single.hpp>
00112 
00113 #endif
00114 
00115 // STATISTICS: set-prop