getopt: fix null pointer arithmetic ub
[musl] / src / math / logbf.c
1 #include <math.h>
2
3 float logbf(float x)
4 {
5         if (!isfinite(x))
6                 return x * x;
7         if (x == 0)
8                 return -1/(x*x);
9         return ilogbf(x);
10 }