[3.14] gh-146196: Fix Undefined Behavior in _PyUnicodeWriter_WriteASCIIString() (#146201)#146220
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[3.14] gh-146196: Fix Undefined Behavior in _PyUnicodeWriter_WriteASCIIString() (#146201)#146220
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…IString() (python#146201) Avoid calling memcpy(data + writer->pos, NULL, 0) which has an undefined behavior. Co-authored-by: Victor Stinner <vstinner@python.org> (cherry picked from commit cd10a2e)
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Avoid calling memcpy(data + writer->pos, NULL, 0)
which has an undefined behavior.
(cherry picked from commit cd10a2e)