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bpo-31956: Add start and stop parameters to array.index() (GH-25059)

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Co-Authored-By: Anders Lorentsen <Phaqui@gmail.com>
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Zackery Spytz 2021-04-02 09:28:35 -06:00 • committed by GitHub
parent 240bcf82a1
commit afd1265058
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6 changed files with 86 additions and 11 deletions
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24
Modules/arraymodule.c
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@ -1136,18 +1136,32 @@ array_array_count(arrayobject *self, PyObject *v)
array.array.index
v: object
start: slice_index(accept={int}) = 0
stop: slice_index(accept={int}, c_default="PY_SSIZE_T_MAX") = sys.maxsize
/
Return index of first occurrence of v in the array.
Raise ValueError if the value is not present.
[clinic start generated code]*/
static PyObject *
array_array_index(arrayobject *self, PyObject *v)
/*[clinic end generated code: output=d48498d325602167 input=cf619898c6649d08]*/
array_array_index_impl(arrayobject *self, PyObject *v, Py_ssize_t start,
Py_ssize_t stop)
/*[clinic end generated code: output=c45e777880c99f52 input=089dff7baa7e5a7e]*/
{
Py_ssize_t i;
for (i = 0; i < Py_SIZE(self); i++) {
if (start < 0) {
start += Py_SIZE(self);
if (start < 0) {
start = 0;
}
}
if (stop < 0) {
stop += Py_SIZE(self);
}
// Use Py_SIZE() for every iteration in case the array is mutated
// during PyObject_RichCompareBool()
for (Py_ssize_t i = start; i < stop && i < Py_SIZE(self); i++) {
PyObject *selfi;
int cmp;