use __expo2 in sinh and cosh, move __cexp to cmath

[libm] / src / cmath / 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;
}