Contents

typedef double dtype;
typedef double rtype;
#define cT  cumo_cDFloat
#define cRT cumo_cDFloat
#define mTM cumo_mDFloatMath

#include "float_macro.h"
#include "cublas_v2.h"
#include "cumo/cuda/cublas.h"
#include "cumo/cuda/cudnn.h"

#ifdef SFMT_H
/* generates a random number on [0,1)-real-interval */
inline static dtype m_rand(dtype max)
{
    return genrand_res53_mix() * max;
}

/* generates random numbers from the normal distribution
   using Box-Muller Transformation.
 */
inline static void m_rand_norm(dtype mu, dtype sigma, dtype *a0, dtype *a1)
{
    dtype x1, x2, w;
    do {
	x1 = genrand_res53_mix();
	x1 = x1*2-1;
	x2 = genrand_res53_mix();
	x2 = x2*2-1;
	w = x1 * x1 + x2 * x2;
    } while (w>=1);
    w = sqrt( (-2*log(w)) / w );
    if (a0) {*a0 = x1*w * sigma + mu;}
    if (a1) {*a1 = x2*w * sigma + mu;}
}
#endif

#define m_min_init cumo_dfloat_new_dim0(0.0/0.0)
#define m_max_init cumo_dfloat_new_dim0(0.0/0.0)
#define m_extract(x) rb_float_new(*(double*)x)
#define m_nearly_eq(x,y) (fabs(x-y)<=(fabs(x)+fabs(y))*DBL_EPSILON*2)

#define M_EPSILON rb_float_new(2.2204460492503131e-16)
#define M_MIN     rb_float_new(2.2250738585072014e-308)
#define M_MAX     rb_float_new(1.7976931348623157e+308)

#define DATA_MIN DBL_MIN
#define DATA_MAX DBL_MAX

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
cumo-0.3.1	ext/cumo/include/cumo/types/dfloat.h
cumo-0.3.0	ext/cumo/include/cumo/types/dfloat.h
cumo-0.3.0.pre1	ext/cumo/include/cumo/types/dfloat.h