Function gmp_mpfr_sys::gmp::mpn_sub_n

pub unsafe extern "C" fn mpn_sub_n(
    rp: *mut limb_t, 
    s1p: *const limb_t, 
    s2p: *const limb_t, 
    n: size_t
) -> limb_t

See: mpn_cnd_sub_n