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gh-111089: PyUnicode_AsUTF8AndSize() sets size on error (#111106)

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On error, PyUnicode_AsUTF8AndSize() now sets the size argument to -1,
to avoid undefined value.
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Victor Stinner 2023-10-20 20:03:11 +02:00 • committed by GitHub
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commit f1e751e933
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3 changed files with 11 additions and 4 deletions
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Doc/c-api/unicode.rst
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@ -971,8 +971,8 @@ These are the UTF-8 codec APIs:
returned buffer always has an extra null byte appended (not included in
*size*), regardless of whether there are any other null code points.
In the case of an error, ``NULL`` is returned with an exception set and no
*size* is stored.
On error, set an exception, set *size* to ``-1`` (if it's not NULL) and
return ``NULL``.
This caches the UTF-8 representation of the string in the Unicode object, and
subsequent calls will return a pointer to the same buffer. The caller is not