rng-stream.h

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//
//  Copyright (C) 2001  Pierre L'Ecuyer (lecuyer@iro.umontreal.ca)
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2 as
// published by the Free Software Foundation;
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//
// Modified for ns-3 by: Rajib Bhattacharjea<raj.b@gatech.edu>
 
#ifndef RNGSTREAM_H
#define RNGSTREAM_H
#include <stdint.h>
#include <string>
 
namespace ns3
{
 
class RngStream
{
  public:
    RngStream(uint32_t seed, uint64_t stream, uint64_t substream);
    RngStream(const RngStream& r);
    double RandU01();
 
  private:
    void AdvanceNthBy(uint64_t nth, int by, double state[6]);
 
    double m_currentState[6];
};
 
} // namespace ns3
 
#endif