blob: 934827f885b7e388eacce766cdd30090fc329487 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
|
#include <limits.h>
#include "libm.h"
float logbf(float x) {
int i = ilogbf(x);
if (i == FP_ILOGB0)
return -1.0f/fabsf(x);
if (i == FP_ILOGBNAN || i == INT_MAX)
return x * x;
return i;
}
|