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stopbrancher.cpp

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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  *
00006  *  Copyright:
00007  *     Guido Tack, 2006
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 <gecode/gist/stopbrancher.hh>
00035 
00036 namespace Gecode { namespace Gist {
00037 
00038   StopChoice::StopChoice(const Brancher& b) : Choice(b,1) {}
00039   void
00040   StopChoice::archive(Archive& e) const {
00041     Choice::archive(e);
00042   }
00043 
00044   StopBrancher::StopBrancher(Home home) : Brancher(home), done(false) {}
00045 
00046   StopBrancher::StopBrancher(Space& home, StopBrancher& b)
00047     : Brancher(home,b), done(b.done) {}
00048 
00049   bool
00050   StopBrancher::status(const Space&) const {
00051     return !done;
00052   }
00053 
00054   Choice*
00055   StopBrancher::choice(Space&) {
00056     return new StopChoice(*this);
00057   }
00058   Choice*
00059   StopBrancher::choice(const Space&, Archive&) {
00060     return new StopChoice(*this);
00061   }
00062   ExecStatus
00063   StopBrancher::commit(Space&, const Choice&, unsigned int) {
00064     done = true;
00065     return ES_OK;
00066   }
00067 
00068   void
00069   StopBrancher::print(const Space&, const Gecode::Choice&,
00070                       unsigned int, std::ostream&) const {
00071   }
00072 
00073   Actor*
00074   StopBrancher::copy(Space& home) {
00075     return new (home) StopBrancher(home, *this);
00076   }
00077   void
00078   StopBrancher::post(Home home) {
00079     (void) new (home) StopBrancher(home);
00080   }
00081   size_t
00082   StopBrancher::dispose(Space&) {
00083     return sizeof(*this);
00084   }
00085 
00086 }}
00087 
00088 // STATISTICS: gist-any