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optimize.hpp
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00001 /* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
00002 /*
00003  *  Main author:
00004  *     Christian Schulte <schulte@gecode.org>
00005  *
00006  *  Copyright:
00007  *     Christian Schulte, 2008
00008  *
00009  *  Last modified:
00010  *     $Date: 2013-04-09 15:16:43 +0200 (Tue, 09 Apr 2013) $ by $Author: schulte $
00011  *     $Revision: 13571 $
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 namespace Gecode { namespace MiniModel {
00039 
00040   template<IntRelType irt>
00041   forceinline
00042   IntOptimizeSpace<irt>::IntOptimizeSpace(void) {}
00043 
00044   template<IntRelType irt>
00045   forceinline
00046   IntOptimizeSpace<irt>::IntOptimizeSpace(bool share, IntOptimizeSpace& s)
00047     : Space(share,s) {}
00048 
00049   template<IntRelType irt>
00050   void
00051   IntOptimizeSpace<irt>::constrain(const Space& _best) {
00052     const IntOptimizeSpace<irt>* best =
00053       dynamic_cast<const IntOptimizeSpace<irt>*>(&_best);
00054     if (best == NULL)
00055       throw DynamicCastFailed("IntOptimizeSpace::constrain");
00056     rel(*this, cost(), irt, best->cost().val());
00057   }
00058 
00059 #ifdef GECODE_HAS_FLOAT_VARS 
00060 
00061   template<FloatRelType frt>
00062   forceinline
00063   FloatOptimizeSpace<frt>::FloatOptimizeSpace(void) {}
00064 
00065   template<FloatRelType frt>
00066   forceinline
00067   FloatOptimizeSpace<frt>::FloatOptimizeSpace(bool share, 
00068                                               FloatOptimizeSpace& s)
00069     : Space(share,s) {}
00070 
00071   template<FloatRelType frt>
00072   void
00073   FloatOptimizeSpace<frt>::constrain(const Space& _best) {
00074     const FloatOptimizeSpace<frt>* best =
00075       dynamic_cast<const FloatOptimizeSpace<frt>*>(&_best);
00076     if (best == NULL)
00077       throw DynamicCastFailed("FloatOptimizeSpace::constrain");
00078     rel(*this, cost(), frt, best->cost().val());
00079   }
00080 
00081 #endif
00082 
00083 }}
00084 
00085 // STATISTICS: minimodel-search
00086