rnd.cpp

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/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
 *  Main authors:
 *     Christian Schulte <schulte@gecode.org>
 *     Mikael Lagerkvist <lagerkvist@gecode.org>
 *
 *  Copyright:
 *     Christian Schulte, 2008
 *     Mikael Lagerkvist, 2008
 *
 *  Last modified:
 *     $Date: 2012-09-07 11:29:57 +0200 (Fri, 07 Sep 2012) $ by $Author: schulte $
 *     $Revision: 13061 $
 *
 *  This file is part of Gecode, the generic constraint
 *  development environment:
 *     http://www.gecode.org
 *
 *  Permission is hereby granted, free of charge, to any person obtaining
 *  a copy of this software and associated documentation files (the
 *  "Software"), to deal in the Software without restriction, including
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 *  permit persons to whom the Software is furnished to do so, subject to
 *  the following conditions:
 *
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 *  included in all copies or substantial portions of the Software.
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#include <gecode/kernel.hh>

namespace Gecode {

  SharedHandle::Object*
  Rnd::IMP::copy(void) const {
    return new IMP(rg.seed());
  }

  Rnd::Rnd(unsigned int s) {
    object(new IMP(s));
  }
  void
  Rnd::seed(unsigned int s) {
    if (object() == NULL) {
      object(new IMP(s));
    } else {
      static_cast<IMP*>(object())->rg.seed(s);
    }
  }

}

// STATISTICS: kernel-other