Function arf_complex_mul 

pub unsafe extern "C" fn arf_complex_mul(
    e: *mut arf_struct,
    f: *mut arf_struct,
    a: *const arf_struct,
    b: *const arf_struct,
    c: *const arf_struct,
    d: *const arf_struct,
    prec: mp_limb_signed_t,
    rnd: c_int,
) -> c_int