A Discrete-Event Network Simulator
API
rng-stream.h
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1 //
2 // Copyright (C) 2001 Pierre L'Ecuyer (lecuyer@iro.umontreal.ca)
3 //
4 // This program is free software; you can redistribute it and/or modify
5 // it under the terms of the GNU General Public License version 2 as
6 // published by the Free Software Foundation;
7 //
8 // This program is distributed in the hope that it will be useful,
9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 // GNU General Public License for more details.
12 //
13 // You should have received a copy of the GNU General Public License
14 // along with this program; if not, write to the Free Software
15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
16 //
17 // Modified for ns-3 by: Rajib Bhattacharjea<raj.b@gatech.edu>
18 
19 #ifndef RNGSTREAM_H
20 #define RNGSTREAM_H
21 #include <stdint.h>
22 #include <string>
23 
30 namespace ns3
31 {
32 
49 class RngStream
50 {
51  public:
59  RngStream(uint32_t seed, uint64_t stream, uint64_t substream);
65  RngStream(const RngStream& r);
72  double RandU01();
73 
74  private:
82  void AdvanceNthBy(uint64_t nth, int by, double state[6]);
83 
85  double m_currentState[6];
86 };
87 
88 } // namespace ns3
89 
90 #endif
Combined Multiple-Recursive Generator MRG32k3a.
Definition: rng-stream.h:50
RngStream(uint32_t seed, uint64_t stream, uint64_t substream)
Construct from explicit seed, stream and substream values.
Definition: rng-stream.cc:378
double m_currentState[6]
The RNG state vector.
Definition: rng-stream.h:85
void AdvanceNthBy(uint64_t nth, int by, double state[6])
Advance state of the RNG by leaps and bounds.
Definition: rng-stream.cc:401
double RandU01()
Generate the next random number for this stream.
Definition: rng-stream.cc:341
Every class exported by the ns3 library is enclosed in the ns3 namespace.