Source position: gmp.pas line 780
function mpn_gcdext(
r1p: mpn_ptr;
r2p: mpn_ptr;
out r2n: mp_size_t;
s1p: mpn_ptr;
s1n: mp_size_t;
s2p: mpn_ptr;
s2n: mp_size_t
):mp_size_t;