devkitPro

Is there a reason double logb(double) is not supported in Math.h even though it is in the ISO C standard?

I see it for C++ in tr1\cmath, however, it is not available in C.

Thanks.

I guess this is because newlib-1.17.0 does not support it officially/documented.

libm.a definately has this in it, however, I guess newlib decided to not include it in math.h:
/* Functions that are not documented, and are not in <math.h>. */
...
extern double logb __P((double));
...

Guess I'll just put this in my own copy of Math.h to allow this to be used.