/usr/include/ns3.26/ns3/rng-stream.h is in libns3-dev 3.26+dfsg-1.
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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 <string>
#include <stdint.h>
/**
* \file
* \ingroup rngimpl
* Declaration of class RngStream.
*/
namespace ns3 {
/**
* \ingroup randomvariable
* \defgroup rngimpl RNG Implementation.
*/
/**
* \ingroup rngimpl
*
* \brief Combined Multiple-Recursive Generator MRG32k3a
*
* This class is the combined multiple-recursive random number
* generator called MRG32k3a. The ns3::RandomVariableBase class
* holds a static instance of this class. The details of this
* class are explained in:
* http://www.iro.umontreal.ca/~lecuyer/myftp/papers/streams00.pdf
*/
class RngStream
{
public:
/**
* Construct from explicit seed, stream and substream values.
*
* \param [in] seed The starting seed.
* \param [in] stream The stream number.
* \param [in] substream The sub-stream number.
*/
RngStream (uint32_t seed, uint64_t stream, uint64_t substream);
/**
* Copy constructor.
*
* \param [in] r The RngStream to copy.
*/
RngStream (const RngStream & r);
/**
* Generate the next random number for this stream.
* Uniformly distributed between 0 and 1.
*
* \returns The next random.
*/
double RandU01 (void);
private:
/**
* Advance \p state of the RNG by leaps and bounds.
*
* \param [in] nth The stream or substream index.
* \param [in] by The log2 base of \p nth.
* \param [in] state The state vector to advance.
*/
void AdvanceNthBy (uint64_t nth, int by, double state[6]);
/** The RNG state vector. */
double m_currentState[6];
};
} // namespace ns3
#endif
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