diff options
| -rw-r--r-- | Objects/longobject.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/Objects/longobject.c b/Objects/longobject.c index 0eefc90b1e..0801e64981 100644 --- a/Objects/longobject.c +++ b/Objects/longobject.c @@ -1539,20 +1539,21 @@ x_mul(PyLongObject *a, PyLongObject *b) twodigits carry = 0; twodigits f = a->ob_digit[i]; int j; + digit *pz = z->ob_digit + i; SIGCHECK({ Py_DECREF(z); return NULL; }) for (j = 0; j < size_b; ++j) { - carry += z->ob_digit[i+j] + b->ob_digit[j] * f; - z->ob_digit[i+j] = (digit) (carry & MASK); + carry += *pz + b->ob_digit[j] * f; + *pz++ = (digit) (carry & MASK); carry >>= SHIFT; } for (; carry != 0; ++j) { assert(i+j < z->ob_size); - carry += z->ob_digit[i+j]; - z->ob_digit[i+j] = (digit) (carry & MASK); + carry += *pz; + *pz++ = (digit) (carry & MASK); carry >>= SHIFT; } } |