[3.13] gh-143050: Correct PyLong_FromString() to use _PyLong_Negate() (#145901)#147437
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vstinner merged 3 commits intopython:3.13from Mar 31, 2026
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[3.13] gh-143050: Correct PyLong_FromString() to use _PyLong_Negate() (#145901)#147437vstinner merged 3 commits intopython:3.13from
vstinner merged 3 commits intopython:3.13from
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…ython#145901) The long_from_string_base() might return a small integer, when the _pylong.py is used to do conversion. Hence, we must be careful here to not smash it "small int" bit by using the _PyLong_FlipSign(). Co-authored-by: Victor Stinner <vstinner@python.org> (cherry picked from commit db5936c)
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@skirpichev: I backported manually the change to 3.13. I reimplemented |
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The long_from_string_base() might return a small integer, when the _pylong.py is used to do conversion. Hence, we must be careful here to not smash it "small int" bit by using the _PyLong_FlipSign().
(cherry picked from commit db5936c)