Function creachadair_imath_sys::mp_rat_string_len

pub unsafe extern "C" fn mp_rat_string_len(
    r: mp_rat,
    radix: mp_size
) -> mp_result

Reports the minimum number of characters required to represent r as a zero-terminated string in the given radix. Requires MP_MIN_RADIX <= radix <= MP_MAX_RADIX.