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int-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  *  This file is part of Gecode, the generic constraint
00010  *  development environment:
00011  *     http://www.gecode.org
00012  *
00013  *  Permission is hereby granted, free of charge, to any person obtaining
00014  *  a copy of this software and associated documentation files (the
00015  *  "Software"), to deal in the Software without restriction, including
00016  *  without limitation the rights to use, copy, modify, merge, publish,
00017  *  distribute, sublicense, and/or sell copies of the Software, and to
00018  *  permit persons to whom the Software is furnished to do so, subject to
00019  *  the following conditions:
00020  *
00021  *  The above copyright notice and this permission notice shall be
00022  *  included in all copies or substantial portions of the Software.
00023  *
00024  *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
00025  *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
00026  *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
00027  *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
00028  *  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
00029  *  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
00030  *  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
00031  *
00032  */
00033 
00034 namespace Gecode { namespace Int { namespace Count {
00035 
00036   template<class VX, class VY>
00037   forceinline
00038   IntBase<VX,VY>::IntBase(Home home,
00039                           ViewArray<VX>& x0, int n_s0, VY y0, int c0)
00040     : Propagator(home), x(x0), n_s(n_s0), y(y0), c(c0) {
00041     if (isintset(y))
00042       home.notice(*this,AP_DISPOSE);
00043     for (int i=0; i<n_s; i++)
00044       x[i].subscribe(home,*this,PC_INT_DOM);
00045     subscribe(home,*this,y);
00046   }
00047 
00048   template<class VX, class VY>
00049   forceinline size_t
00050   IntBase<VX,VY>::dispose(Space& home) {
00051     if (isintset(y))
00052       home.ignore(*this,AP_DISPOSE);
00053     for (int i=0; i<n_s; i++)
00054       x[i].cancel(home,*this,PC_INT_DOM);
00055     cancel(home,*this,y);
00056     (void) Propagator::dispose(home);
00057     return sizeof(*this);
00058   }
00059 
00060   template<class VX, class VY>
00061   forceinline
00062   IntBase<VX,VY>::IntBase(Space& home, IntBase<VX,VY>& p)
00063     : Propagator(home,p), n_s(p.n_s), c(p.c) {
00064     x.update(home,p.x);
00065     update(y,home,p.y);
00066   }
00067 
00068   template<class VX, class VY>
00069   PropCost
00070   IntBase<VX,VY>::cost(const Space&, const ModEventDelta&) const {
00071     return PropCost::linear(PropCost::LO,x.size());
00072   }
00073 
00074   template<class VX, class VY>
00075   void
00076   IntBase<VX,VY>::reschedule(Space& home) {
00077     for (int i=0; i<n_s; i++)
00078       x[i].reschedule(home,*this,PC_INT_DOM);
00079     Gecode::Int::Count::reschedule(home,*this,y);
00080   }
00081 
00082 }}}
00083 
00084 // STATISTICS: int-prop