EvtGen 2.2.0
Monte Carlo generator of particle decays, in particular the weak decays of heavy flavour particles such as B mesons.
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EvtRandom.hh
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1
2/***********************************************************************
3* Copyright 1998-2020 CERN for the benefit of the EvtGen authors *
4* *
5* This file is part of EvtGen. *
6* *
7* EvtGen is free software: you can redistribute it and/or modify *
8* it under the terms of the GNU General Public License as published by *
9* the Free Software Foundation, either version 3 of the License, or *
10* (at your option) any later version. *
11* *
12* EvtGen is distributed in the hope that it will be useful, *
13* but WITHOUT ANY WARRANTY; without even the implied warranty of *
14* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
15* GNU General Public License for more details. *
16* *
17* You should have received a copy of the GNU General Public License *
18* along with EvtGen. If not, see <https://www.gnu.org/licenses/>. *
19***********************************************************************/
20
21#ifndef EVTRANDOM_HH
22#define EVTRANDOM_HH
23
24class EvtRandomEngine;
25
26class EvtRandom {
27 public:
28 static double Flat();
29 static double Flat( double max );
30 static double Flat( double min, double max );
31
32 //generate unit Gaussian
33 static double Gaussian();
34
35 static double random();
36
37 static void setSeed( unsigned long int seed );
38
39 static unsigned long int lastSeed();
40
41 //This class does not take ownership of the random engine;
42 //the caller needs to make sure that the engine is not
43 //destroyed.
44 static void setRandomEngine( EvtRandomEngine* randomEngine );
45
46 private:
47 static thread_local EvtRandomEngine* m_randomEngine;
48};
49
50#endif
static unsigned long int lastSeed()
Definition EvtRandom.cpp:65
static double random()
Definition EvtRandom.cpp:41
static double Flat()
Definition EvtRandom.cpp:95
static EvtRandomEngine * m_randomEngine
Definition EvtRandom.hh:47
static void setSeed(unsigned long int seed)
Definition EvtRandom.cpp:53
static double Gaussian()
static void setRandomEngine(EvtRandomEngine *randomEngine)
Definition EvtRandom.cpp:36