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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"qidarg_converter_data Values Not Properly Initialized","articleBody":"# Bug report\n\n### Bug description:\n\nIn https://github.com/python/cpython/pull/124548#issuecomment-2420488611, @ZeroIntensity noted that the various locals of type `qidarg_converter_data` in _interpqueuesmodule.c are not statically initialized.  Whether or not they are initialized to zeros by default is \"undefined behavior, ergo depends on the compiler.  This could be a problem since the corresponding arg converter func branches on whether or the \"label\" field is NULL.  This may (or may not) be related to the buildbot failures noted in that other issue.\n\nFixing this will be fairly trivial.\n\n### CPython versions tested on:\n\nCPython main branch\n\n### Operating systems tested on:\n\n_No response_\n\n\u003c!-- gh-linked-prs --\u003e\n### Linked PRs\n* gh-125668\n* gh-125670\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/ericsnowcurrently","@type":"Person","name":"ericsnowcurrently"},"datePublished":"2024-10-17T23:14:06.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/125667/cpython/issues/125667"}