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Title: gh-147988: Initialize digits in long_alloc() in debug mode by vstinner · Pull Request #147989 · python/cpython · GitHub

Open Graph Title: gh-147988: Initialize digits in long_alloc() in debug mode by vstinner · Pull Request #147989 · python/cpython

X Title: gh-147988: Initialize digits in long_alloc() in debug mode by vstinner · Pull Request #147989 · python/cpython

Description: When Python is built in debug mode, long_alloc() now initializes digits with a pattern to detect usage of uninitialized digits. _PyLong_CompactValue() makes sure that the digit is zero when the sign is zero. Issue: gh-147988

Open Graph Description: When Python is built in debug mode, long_alloc() now initializes digits with a pattern to detect usage of uninitialized digits. _PyLong_CompactValue() makes sure that the digit is zero when the sig...

X Description: When Python is built in debug mode, long_alloc() now initializes digits with a pattern to detect usage of uninitialized digits. _PyLong_CompactValue() makes sure that the digit is zero when the sig...

Opengraph URL: https://github.com/python/cpython/pull/147989

X: @github

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a14685f gh-147988: Initialize digits in long_alloc() in debug mode vstinner Apr 1, 2026 https://github.com/python/cpython/pull/147989/commits/a14685fde7b5999a953640de6ad53e24bedfc5af
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