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set-rel.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, 2005
00008  *
00009  *  Last modified:
00010  *     $Date: 2010-07-14 20:32:01 +0200 (Wed, 14 Jul 2010) $ by $Author: schulte $
00011  *     $Revision: 11195 $
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 #ifdef GECODE_HAS_SET_VARS
00039 
00040 namespace Gecode {
00041 
00042   /*
00043    * Operations for set relations
00044    *
00045    */
00046   forceinline
00047   SetCmpRel::SetCmpRel(const SetExpr& l0, SetRelType srt0, const SetExpr& r0)
00048     : l(l0), r(r0), srt(srt0) {}
00049 
00050   forceinline
00051   SetRel::SetRel(void) {}
00052    
00053   forceinline
00054   SetRel::SetRel(const SetExpr& e0, SetRelType srt, const SetExpr& e1)
00055     : _e0(e0), _srt(srt), _e1(e1) {}
00056 
00057   forceinline
00058   SetRel::SetRel(const SetCmpRel& r)
00059     : _e0(r.l), _srt(r.srt), _e1(r.r) {}
00060 
00061   forceinline void
00062   SetRel::post(Home home, bool t) const {
00063     if (t)
00064       _e0.post(home,_srt,_e1);
00065     else if (_srt == SRT_EQ)
00066       _e0.post(home,SRT_NQ,_e1);
00067     else if (_srt == SRT_NQ)
00068       _e0.post(home,SRT_EQ,_e1);
00069     else {
00070       BoolVar b(home,0,0);
00071       _e0.post(home,b,true,_srt,_e1);
00072     }
00073   }
00074 
00075   forceinline void
00076   SetRel::post(Home home, BoolVar b, bool t) const {
00077     _e0.post(home,b,t,_srt,_e1);
00078   }
00079 
00080 }
00081 
00082 #endif
00083 
00084 // STATISTICS: minimodel-any