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Fix another case of potential signed overflow.

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This commit is contained in:
Mark Dickinson 2009-11-15 12:56:08 +00:00
parent f4817e5929
commit b43dbc26f9
1 changed files with 4 additions and 1 deletions
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5
Objects/rangeobject.c
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@ -411,7 +411,10 @@ static PyObject *
rangeiter_next(rangeiterobject *r) rangeiter_next(rangeiterobject *r)
{ {
if (r->index < r->len) if (r->index < r->len)
return PyLong_FromLong(r->start + (r->index++) * r->step); /* cast to unsigned to avoid possible signed overflow
in intermediate calculations. */
return PyLong_FromLong((long)(r->start +
(unsigned long)(r->index++) * r->step));
return NULL; return NULL;
} }