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Title: gh-101037: Fix potential memory underallocation for zeros of int subtypes by mdickinson · Pull Request #101038 · python/cpython · GitHub

Open Graph Title: gh-101037: Fix potential memory underallocation for zeros of int subtypes by mdickinson · Pull Request #101038 · python/cpython

X Title: gh-101037: Fix potential memory underallocation for zeros of int subtypes by mdickinson · Pull Request #101038 · python/cpython

Description: The Python programming language. Contribute to python/cpython development by creating an account on GitHub.

Open Graph Description: This PR fixes object allocation in long_subtype_new to ensure that there's at least one digit in all cases, and makes sure that the value of that digit is copied over from the source long. Need...

X Description: This PR fixes object allocation in long_subtype_new to ensure that there's at least one digit in all cases, and makes sure that the value of that digit is copied over from the source long. ...

Opengraph URL: https://github.com/python/cpython/pull/101038

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og:image:altThis PR fixes object allocation in long_subtype_new to ensure that there's at least one digit in all cases, and makes sure that the value of that digit is copied over from the source long. Need...
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Add note to longintrepr.h to clarify that ob_digit[0] is always safe to access.https://github.com/python/cpython/pull/101038/commits/877067c181b2ee7714b83f4935f237f9df694e36
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