math: raise flags in log2l.c on <= 0 arguments, and fix volatile

[musl] / src / complex / cprojf.c

#include "libm.h"

float complex cprojf(float complex z)
{
        if (isinf(crealf(z)) || isinf(cimagf(z)))
                return cpackf(INFINITY, copysignf(0.0, crealf(z)));
        return z;
}