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element.cc

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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  *     Christian Schulte <schulte@gecode.org>
00006  *
00007  *  Copyright:
00008  *     Guido Tack, 2004
00009  *     Christian Schulte, 2004
00010  *
00011  *  Last modified:
00012  *     $Date: 2008-07-11 10:35:42 +0200 (Fri, 11 Jul 2008) $ by $Author: tack $
00013  *     $Revision: 7339 $
00014  *
00015  *  This file is part of Gecode, the generic constraint
00016  *  development environment:
00017  *     http://www.gecode.org
00018  *
00019  *  Permission is hereby granted, free of charge, to any person obtaining
00020  *  a copy of this software and associated documentation files (the
00021  *  "Software"), to deal in the Software without restriction, including
00022  *  without limitation the rights to use, copy, modify, merge, publish,
00023  *  distribute, sublicense, and/or sell copies of the Software, and to
00024  *  permit persons to whom the Software is furnished to do so, subject to
00025  *  the following conditions:
00026  *
00027  *  The above copyright notice and this permission notice shall be
00028  *  included in all copies or substantial portions of the Software.
00029  *
00030  *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
00031  *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
00032  *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
00033  *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
00034  *  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
00035  *  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
00036  *  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
00037  *
00038  */
00039 
00040 #include "gecode/set/element.hh"
00041 
00042 namespace Gecode {
00043 
00044   using namespace Gecode::Set;
00045 
00046   void
00047   elementsUnion(Space* home, const SetVarArgs& x, SetVar y, SetVar z) {
00048     if (home->failed()) return;
00049     Set::Element::IdxViewArray<SetView> iv(home, x);
00050     GECODE_ES_FAIL(home,
00051                    (Element::ElementUnion<SetView,SetView>::
00052                     post(home,z,iv,y)));
00053   }
00054 
00055   void
00056   elementsUnion(Space* home, const IntSetArgs& s, SetVar y, SetVar z) {
00057     SharedArray<IntSet> x(s.size());
00058     for (int i=s.size(); i--;)
00059       new (&x[i]) IntSet(s[i]);
00060     if (home->failed()) return;
00061     GECODE_ES_FAIL(home,
00062                    (Element::ElementUnionConst<SetView,SetView>::
00063                     post(home,z,x,y)));
00064   }
00065 
00066   void
00067   elementsInter(Space* home, const SetVarArgs& x, SetVar y, SetVar z) {
00068     if (home->failed()) return;
00069     Set::Element::IdxViewArray<SetView> iv(home, x);
00070     IntSet universe(Set::Limits::min,
00071                     Set::Limits::max);
00072     GECODE_ES_FAIL(home,
00073                    (Element::ElementIntersection<SetView,SetView>::
00074                     post(home,z,iv,y,universe)));
00075   }
00076 
00077   void
00078   elementsInter(Space* home, const SetVarArgs& x, SetVar y, SetVar z,
00079                 const IntSet& universe) {
00080     if (home->failed()) return;
00081     Set::Element::IdxViewArray<SetView> iv(home, x);
00082     GECODE_ES_FAIL(home,
00083                    (Element::ElementIntersection<SetView,SetView>::
00084                     post(home,z,iv,y,universe)));
00085   }
00086 
00087   void
00088   elementsDisjoint(Space* home, const SetVarArgs& x, SetVar y) {
00089     if (home->failed()) return;
00090     Set::Element::IdxViewArray<SetView> iv(home, x);
00091     GECODE_ES_FAIL(home,Element::ElementDisjoint::post(home,iv,y));
00092   }
00093 
00094   void
00095   element(Space* home, const SetVarArgs& x, IntVar y, SetVar z) {
00096     if (home->failed()) return;
00097     Set::Element::IdxViewArray<SetView > iv(home, x);
00098     SetView zv(z);
00099 
00100     Int::IntView yv(y);
00101     SingletonView single(yv);
00102     GECODE_ES_FAIL(home,(Element::ElementUnion<SetView,
00103                          SingletonView>::post(home, z, iv, single)));
00104   }
00105 
00106   void
00107   element(Space* home, const IntSetArgs& s, IntVar y, SetVar z) {
00108     for (int i=s.size(); i--;)
00109       Set::Limits::check(s[i], "Set::element");
00110     if (home->failed()) return;
00111     SetView zv(z);
00112     SharedArray<IntSet> x(s.size());
00113     for (int i=s.size(); i--;)
00114       new (&x[i]) IntSet(s[i]);
00115 
00116     Int::IntView yv(y);
00117     SingletonView single(yv);
00118     GECODE_ES_FAIL(home,(Element::ElementUnionConst<SetView,
00119                          SingletonView>::post(home, z, x, single)));
00120   }
00121 
00122   namespace {
00123     GECODE_REGISTER2(Element::ElementUnion<Gecode::Set::SetView, Gecode::Set::SingletonView>);
00124     GECODE_REGISTER2(Element::ElementUnion<Gecode::Set::SetView, Gecode::Set::SetView>);
00125     GECODE_REGISTER1(Element::ElementDisjoint);
00126     GECODE_REGISTER2(Element::ElementUnionConst<Gecode::Set::SetView, Gecode::Set::SingletonView>);
00127     GECODE_REGISTER2(Element::ElementUnionConst<Gecode::Set::SetView, Gecode::Set::SetView>);
00128     GECODE_REGISTER2(Element::ElementIntersection<Gecode::Set::SetView, Gecode::Set::SetView>);
00129     
00130   }
00131   
00132 }
00133 
00134 // STATISTICS: set-post
00135