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fastjet::BasicRandom< double >

fastjet::BasicRandom< double > Class Template Reference

template specialization (double) for the BasicRandom template class. More...

#include <BasicRandom.hh>

List of all members.

Public Types

typedef double value_type
typedef unsigned int size_type
typedef value_type * pointer

Public Member Functions

 BasicRandom (int __s1=12345, int __s2=67890)
 constructor that takes two integers to specify the seed
value_type operator() ()
 return a single pseudorandom double number, in the range 0.0 to 1.0 (not sure whether this range is open or closed)
void operator() (size_type __n, pointer __res)
 given a pointer __res to the beginning of an array, fill that array with __n random numbers
void randomize (void *__iseed)
 (re)initialize the random number generator from an array of seeds
void set_status (const std::vector< int > &__iseed)
void get_status (std::vector< int > &__iseed)
void print_info (std::ostream &__os=std::cout)
 print information about the generator to the stream

Static Public Member Functions

static value_type min ()
 minimum value returned by the generator
static value_type max ()
 maximum value returned by the generator

Private Attributes

int _M_iseed [2]

Detailed Description

template<>
class fastjet::BasicRandom< double >

template specialization (double) for the BasicRandom template class.

Definition at line 115 of file BasicRandom.hh.

Member Typedef Documentation

typedef value_type* fastjet::BasicRandom< double >::pointer
 

Definition at line 119 of file BasicRandom.hh.

typedef unsigned int fastjet::BasicRandom< double >::size_type
 

Definition at line 118 of file BasicRandom.hh.

typedef double fastjet::BasicRandom< double >::value_type
 

Definition at line 117 of file BasicRandom.hh.

Member Function Documentation

fastjet::BasicRandom< double >::BasicRandom (  int  __s1 = 12345,
int  __s2 = 67890
)  [inline, explicit]
 

constructor that takes two integers to specify the seed

Definition at line 122 of file BasicRandom.hh.

00122                                                            {
00123     _M_iseed[0] = __s1;
00124     _M_iseed[1] = __s2;
00125   }

void fastjet::BasicRandom< double >::get_status (  std::vector< int > &  __iseed  )  [inline]
 

Definition at line 153 of file BasicRandom.hh.

00153                                             {
00154     __iseed.resize(2);
00155     __iseed[0] = _M_iseed[0];
00156     __iseed[1] = _M_iseed[1];
00157   }

static value_type fastjet::BasicRandom< double >::max (   )  [inline, static]
 

maximum value returned by the generator

Definition at line 162 of file BasicRandom.hh.

00162 { return 1.0;}

static value_type fastjet::BasicRandom< double >::min (   )  [inline, static]
 

minimum value returned by the generator

Definition at line 160 of file BasicRandom.hh.

00160 { return 0.0;}

void fastjet::BasicRandom< double >::operator() (  size_type  __n,
pointer  __res
)  [inline]
 

given a pointer __res to the beginning of an array, fill that array with __n random numbers

Definition at line 135 of file BasicRandom.hh.

00135                                                  {
00136     for(size_type __i = 0; __i < __n; __i++) 
00137       __res[__i] = this -> operator()(); 
00138   }

value_type fastjet::BasicRandom< double >::operator() (   )  [inline]
 

return a single pseudorandom double number, in the range 0.0 to 1.0 (not sure whether this range is open or closed)

Definition at line 129 of file BasicRandom.hh.

References fastjet::__default_random_generator().

00129                            { 
00130     return 4.6566128752457969241e-10*__default_random_generator(_M_iseed);
00131   }

void fastjet::BasicRandom< double >::print_info (  std::ostream &  __os = std::cout  )  [inline]
 

print information about the generator to the stream

Definition at line 165 of file BasicRandom.hh.

00165                                               {
00166     __os<<"BasicRandom<double> : "<<_M_iseed[0]<<", "<<_M_iseed[1]<<std::endl;
00167   }

void fastjet::BasicRandom< double >::randomize (  void *  __iseed  )  [inline]
 

(re)initialize the random number generator from an array of seeds

Definition at line 141 of file BasicRandom.hh.

00141                                 {
00142     int *__new_seed = (int*) __iseed;
00143     _M_iseed[0] = __new_seed[0];
00144     _M_iseed[1] = __new_seed[1];
00145   }

void fastjet::BasicRandom< double >::set_status (  const std::vector< int > &  __iseed  )  [inline]
 

Definition at line 147 of file BasicRandom.hh.

00147                                                   {
00148     assert(__iseed.size() >= 2);
00149     _M_iseed[0] = __iseed[0];
00150     _M_iseed[1] = __iseed[1];
00151   }

Member Data Documentation

int fastjet::BasicRandom< double >::_M_iseed[2] [private]
 

Definition at line 170 of file BasicRandom.hh.

The documentation for this class was generated from the following file:
Generated on Fri Aug 15 13:45:46 2008 for fastjet by  doxygen 1.4.2