Function gmp_mpfr_sys::gmp::__gmpn_add

pub unsafe extern fn __gmpn_add(rp: *mut mp_limb_t,
                                s1p: *const mp_limb_t,
                                s1n: mp_size_t,
                                s2p: *const mp_limb_t,
                                s2n: mp_size_t)
                                -> mp_limb_t