rand48.h File Reference

Go to the source code of this file.

Functions
float	merand48 (uint64_t &initial)
float	merand48_noadvance (uint64_t v)

Function Documentation

merand48()

float merand48

(

uint64_t &

initial

)

Definition at line 16 of file rand48.cc.

References a, bias, and c.

Referenced by cheesyrand(), cheesyrbit(), random_positive_wrapper< T >::func(), random_weights_wrapper< T >::func(), polar_normal_weights_wrapper< T >::func(), set_rand_wrapper< T >::func(), set_initial_lda_wrapper< T >::func(), rand_state::get_and_update_random(), merand48_noadvance(), and predict_or_learn_multi().

{
  static_assert(sizeof(int) == sizeof(float), "Floats and ints are converted between, they must be the same size.");
  initial = a * initial + c;
  int32_t temp = ((initial >> 25) & 0x7FFFFF) | bias;
  return reinterpret_cast<float&>(temp) - 1;
}

merand48_noadvance()

float merand48_noadvance

(

uint64_t

v

)

Definition at line 24 of file rand48.cc.

References merand48().

Referenced by rand_state::get_random().

{ return merand48(v); }