/usr/include/root/Math/GSLQuasiRandom.h is in libroot-math-mathmore-dev 5.34.30-0ubuntu8.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 | // @(#)root/mathmore:$Id$
// Author: L. Moneta, A. Zsenei 08/2005
/**********************************************************************
* *
* Copyright (c) 2004 ROOT Foundation, CERN/PH-SFT *
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License *
* as published by the Free Software Foundation; either version 2 *
* of the License, or (at your option) any later version. *
* *
* This library 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 library (see file COPYING); if not, write *
* to the Free Software Foundation, Inc., 59 Temple Place, Suite *
* 330, Boston, MA 02111-1307 USA, or contact the author. *
* *
**********************************************************************/
// Header file for class GSLQuasiRandom
//
// Created by: moneta at Sun Nov 21 16:26:03 2004
//
// Last update: Sun Nov 21 16:26:03 2004
//
#ifndef ROOT_Math_GSLQuasiRandom
#define ROOT_Math_GSLQuasiRandom
#include <string>
#include <vector>
namespace ROOT {
namespace Math {
class GSLQRngWrapper;
//_________________________________________________________________
/**
GSLQuasiRandomEngine
Base class for all GSL quasi random engines,
normally user instantiate the derived classes
which creates internally the generator and uses the class ROOT::Math::QuasiRandom
@ingroup Random
*/
class GSLQuasiRandomEngine {
public:
/**
default constructor. No creation of rng is done.
If then Initialize() is called an engine is created
based on default GSL type (MT)
*/
GSLQuasiRandomEngine();
/**
create from an existing rng.
User manage the rng pointer which is then deleted olny by calling Terminate()
*/
GSLQuasiRandomEngine( GSLQRngWrapper * rng);
/**
Copy constructor : clone the contained GSL generator
*/
GSLQuasiRandomEngine(const GSLQuasiRandomEngine & eng);
/**
Assignment operator : make a deep copy of the contained GSL generator
*/
GSLQuasiRandomEngine & operator=(const GSLQuasiRandomEngine & eng);
/**
initialize the generator giving the dimension of the sequence
If no rng is present the default one based on Mersenne and Twister is created
*/
void Initialize(unsigned int dimension);
/**
delete pointer to contained rng
*/
void Terminate();
/**
call Terminate()
*/
virtual ~GSLQuasiRandomEngine();
/**
Generate a random number between ]0,1[
*/
double operator() () const;
/**
Fill array x with random numbers between ]0,1[
*/
bool operator() (double * x) const;
/**
Skip the next n random numbers
*/
bool Skip(unsigned int n) const;
/**
Generate an array of quasi random numbers
The iterators points to the random numbers
*/
bool GenerateArray(double * begin, double * end) const;
/**
return name of generator
*/
std::string Name() const;
/**
return the state size of generator
*/
unsigned int Size() const;
/**
return the dimension of generator
*/
unsigned int NDim() const;
protected:
/// internal method used by the derived class to set the type of generators
void SetType(GSLQRngWrapper * r) {
fQRng = r;
}
private:
GSLQRngWrapper * fQRng; // pointer to GSL generator wrapper (managed by the class)
};
//_____________________________________________________________________________________
/**
Sobol generator
gsl_qrng_sobol from
<A HREF="http://www.gnu.org/software/gsl/manual/html_node/Quasi_002drandom-number-generator-algorithms.html#Quasi_002drandom-number-generator-algorithms">here</A>
@ingroup Random
*/
class GSLQRngSobol : public GSLQuasiRandomEngine {
public:
GSLQRngSobol();
};
//_____________________________________________________________________________________
/**
Niederreiter generator
gsl_qrng_niederreiter_2 from
<A HREF="http://www.gnu.org/software/gsl/manual/html_node/Quasi_002drandom-number-generator-algorithms.html#Quasi_002drandom-number-generator-algorithms">here</A>
@ingroup Random
*/
class GSLQRngNiederreiter2 : public GSLQuasiRandomEngine {
public:
GSLQRngNiederreiter2();
};
} // namespace Math
} // namespace ROOT
#endif /* ROOT_Math_GSLQuasiRandom */
|