diff --git a/lib/gcd.c b/lib/gcd.c index cce4f3cd14b36f1511b7372a5c8a8106b9495437..3657f129d7b8c5db0bee11a94a97d5d4bf251b52 100644 --- a/lib/gcd.c +++ b/lib/gcd.c @@ -9,6 +9,9 @@ unsigned long gcd(unsigned long a, unsigned long b) if (a < b) swap(a, b); + + if (!b) + return a; while ((r = a % b) != 0) { a = b; b = r;