__k_cexp
extern double __k_cexp __P((double, int *));
t = __k_cexp(x, &n);
w = __k_cexp((double)x, &n);
t = __k_cexp(x, &n);
t = __k_cexp(x, &n);
t = __k_cexp(x, &n);
t = __k_cexp((double)x, &n);