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precede.hh

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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  *
00009  *  Copyright:
00010  *     Christopher Mears, 2011
00011  *     Christian Schulte, 2011
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_PRECEDE_HH__
00039 #define __GECODE_INT_PRECEDE_HH__
00040 
00041 #include <gecode/int.hh>
00042 
00048 namespace Gecode { namespace Int { namespace Precede {
00049 
00060   template<class View>
00061   class Single : public NaryPropagator<View,PC_INT_NONE> {
00062   protected:
00063     using NaryPropagator<View,PC_INT_NONE>::x;
00065     class Index : public Advisor {
00066     public:
00068       int i;
00070       Index(Space& home, Propagator& p, Council<Index>& c, int i);
00072       Index(Space& home, Index& a);
00073     };
00075     Council<Index> c;
00077     int s, t;
00079     int alpha, beta, gamma;
00081     ExecStatus updateAlpha(Space& home);
00083     ExecStatus updateBeta(Space& home);
00085     Single(Home home, ViewArray<View>& x, int s, int t, int beta, int gamma);
00087     Single(Space& home, Single<View>& p);
00088   public:
00090     virtual Propagator* copy(Space& home);
00092     virtual PropCost cost(const Space&, const ModEventDelta&) const;
00094     virtual void reschedule(Space& home);
00096     virtual size_t dispose(Space& home);
00098     virtual ExecStatus advise(Space& home, Advisor& a, const Delta& d);
00100     virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
00102     static ExecStatus post(Home home, ViewArray<View>& x, int s, int t);
00103   };
00104 
00105 }}}
00106 
00107 #include <gecode/int/precede/single.hpp>
00108 
00109 #endif
00110 
00111 // STATISTICS: int-prop