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Issue #28376: The constructor of range_iterator now checks that step is not 0.

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Patch by Oren Milman.
This commit is contained in:
Serhiy Storchaka 2016-10-08 21:43:11 +03:00
parent 3bd9fde4df
commit 44759bcf13
3 changed files with 43 additions and 3 deletions
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14
Objects/rangeobject.c
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@ -937,12 +937,20 @@ rangeiter_new(PyTypeObject *type, PyObject *args, PyObject *kw)
{
long start, stop, step;
if (!_PyArg_NoKeywords("rangeiter()", kw))
if (!_PyArg_NoKeywords("range_iterator()", kw)) {
return NULL;
}
if (!PyArg_ParseTuple(args, "lll;rangeiter() requires 3 int arguments",
&start, &stop, &step))
if (!PyArg_ParseTuple(args,
"lll;range_iterator() requires 3 int arguments",
&start, &stop, &step)) {
return NULL;
}
if (step == 0) {
PyErr_SetString(PyExc_ValueError,
"range_iterator() arg 3 must not be zero");
return NULL;
}
return fast_range_iter(start, stop, step);
}