Sha256: c5280d5c2111364d8c74436f3b47e7bde23418cd7505e13e5a75b3add350f8c4
Contents?: true
Size: 558 Bytes
Versions: 51
Compression:
Stored size: 558 Bytes
Contents
#include "xint_macro.h"
#define m_abs(x) (x)
#define m_sign(x) (((x)==0) ? 0:1)
static inline dtype int_reciprocal(dtype x) {
switch (x) {
case 1:
return 1;
case 0:
rb_raise(rb_eZeroDivError, "divided by 0");
default:
return 0;
}
}
static dtype pow_int(dtype x, int p)
{
dtype r = m_one;
switch(p) {
case 0: return 1;
case 1: return x;
case 2: return x*x;
case 3: return x*x*x;
}
while (p) {
if (p&1) r *= x;
x *= x;
p >>= 1;
}
return r;
}
Version data entries
51 entries across 28 versions & 2 rubygems