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tiebreak.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, 2012
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 {
00035 
00037   template<class VarBranch>
00038   class TieBreak {
00039   public:
00041     VarBranch a, b, c, d;
00043     TieBreak(VarBranch a0 = VarBranch(),
00044              VarBranch b0 = VarBranch(),
00045              VarBranch c0 = VarBranch(),
00046              VarBranch d0 = VarBranch());
00047   };
00048 
00055 
00056   template<class VarBranch>
00057   TieBreak<VarBranch>
00058   tiebreak(VarBranch a, VarBranch b);
00060   template<class VarBranch>
00061   TieBreak<VarBranch>
00062   tiebreak(VarBranch a, VarBranch b, VarBranch c);
00064   template<class VarBranch>
00065   TieBreak<VarBranch>
00066   tiebreak(VarBranch a, VarBranch b, VarBranch c, VarBranch d);
00068 
00069 
00070   template<class VarBranch>
00071   forceinline
00072   TieBreak<VarBranch>::TieBreak(VarBranch a0,
00073                                 VarBranch b0,
00074                                 VarBranch c0,
00075                                 VarBranch d0)
00076     : a(a0), b(b0), c(c0), d(d0) {}
00077 
00078   template<class VarBranch>
00079   TieBreak<VarBranch>
00080   tiebreak(VarBranch a, VarBranch b) {
00081     TieBreak<VarBranch> ab(a,b);
00082     return ab;
00083   }
00084 
00085   template<class VarBranch>
00086   TieBreak<VarBranch>
00087   tiebreak(VarBranch a, VarBranch b, VarBranch c) {
00088     TieBreak<VarBranch> abc(a,b,c);
00089     return abc;
00090   }
00091 
00092   template<class VarBranch>
00093   TieBreak<VarBranch>
00094   tiebreak(VarBranch a, VarBranch b, VarBranch c, VarBranch d) {
00095     TieBreak<VarBranch> abcd(a,b,c,d);
00096     return abcd;
00097   }
00098 
00099 }
00100 
00101 // STATISTICS: kernel-branch