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gh-135763: AC: Implement `allow_negative for Py_ssize_t` (#138150)

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Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
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Christoph Walcher 2025-09-01 23:55:22 +02:00 • committed by GitHub
parent 7c92497e5c
commit 47bc10e6b3
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7 changed files with 200 additions and 24 deletions
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Python/modsupport.c
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@ -33,6 +33,19 @@ _Py_convert_optional_to_ssize_t(PyObject *obj, void *result)
return 1;
}
int
_Py_convert_optional_to_non_negative_ssize_t(PyObject *obj, void *result)
{
if (!_Py_convert_optional_to_ssize_t(obj, result)) {
return 0;
}
if (obj != Py_None && *((Py_ssize_t *)result) < 0) {
PyErr_SetString(PyExc_ValueError, "argument cannot be negative");
return 0;
}
return 1;
}
/* Helper for mkvalue() to scan the length of a format */