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base.hpp

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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  *
00006  *  Copyright:
00007  *     Christian Schulte, 2006
00008  *
00009  *  Last modified:
00010  *     $Date: 2010-02-02 14:05:18 +0100 (Tue, 02 Feb 2010) $ by $Author: schulte $
00011  *     $Revision: 10259 $
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
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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,
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00036  */
00037 
00038 namespace Gecode { namespace Int { namespace Channel {
00039 
00040   template<class Info, PropCond pc>
00041   forceinline
00042   Base<Info,pc>::Base(Home home, int n0, Info* xy0)
00043     : Propagator(home), n(n0), n_na(2*n), xy(xy0) {
00044     for (int i=2*n; i--; )
00045       xy[i].view.subscribe(home,*this,pc);
00046   }
00047 
00048   template<class Info, PropCond pc>
00049   forceinline
00050   Base<Info,pc>::Base(Space& home, bool share, Base<Info,pc>& p)
00051     : Propagator(home,share,p), n(p.n), n_na(p.n_na),
00052       xy(home.alloc<Info>(2*n)) {
00053     for (int i=2*n; i--; )
00054       xy[i].update(home,share,p.xy[i]);
00055   }
00056 
00057   template<class Info, PropCond pc>
00058   PropCost
00059   Base<Info,pc>::cost(const Space&, const ModEventDelta&) const {
00060     return PropCost::quadratic(PropCost::LO, 2*n);
00061   }
00062 
00063   template<class Info, PropCond pc>
00064   forceinline size_t
00065   Base<Info,pc>::dispose(Space& home) {
00066     for (int i=2*n; i--; )
00067       xy[i].view.cancel(home,*this,pc);
00068     (void) Propagator::dispose(home);
00069     return sizeof(*this);
00070   }
00071 
00072 }}}
00073 
00074 // STATISTICS: int-prop
00075