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dom-ctrl.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, 2003
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 #include <climits>
00035 
00036 namespace Gecode { namespace Int { namespace Distinct {
00037 
00038   /*
00039    * The propagation controller
00040    *
00041    */
00042 
00043   template<class View>
00044   forceinline
00045   DomCtrl<View>::DomCtrl(void) {}
00046 
00047   template<class View>
00048   forceinline bool
00049   DomCtrl<View>::available(void) {
00050     return g;
00051   }
00052 
00053   template<class View>
00054   ExecStatus
00055   DomCtrl<View>::init(Space& home, ViewArray<View>& x) {
00056     return g.init(home,x);
00057   }
00058 
00059   template<class View>
00060   ExecStatus
00061   DomCtrl<View>::sync(void) {
00062     g.purge();
00063     return g.sync() ? ES_OK : ES_FAILED;
00064   }
00065 
00066   template<class View>
00067   ExecStatus
00068   DomCtrl<View>::propagate(Space& home, bool& assigned) {
00069     if (!g.mark())
00070       return ES_OK;
00071     return g.prune(home,assigned);
00072   }
00073 
00074 }}}
00075 
00076 // STATISTICS: int-prop
00077