Bugs item #1536786, was opened at 2006-08-08 11:50
Message generated for change (Comment added) made by tim_one
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Category: Python Interpreter Core
Group: Python 2.5
Status: Open
>Resolution: Accepted
Priority: 5
Submitted By: Thomas Heller (theller)
>Assigned to: Thomas Heller (theller)
Summary: buffer comparison emits a RuntimeWarning
Initial Comment:
On some systems, the memcmp() function returns values
other than -1, 0, or +1, which gives a warning:
>>> cmp(buffer("abc"), buffer("def"))
__main__:1: RuntimeWarning: tp_compare didn't return
-1, 0 or 1
-1
>>>
The problem occurred on OS X and Windows CE.
Patch and test attached.
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>Comment By: Tim Peters (tim_one)
Date: 2006-08-08 12:52
Message:
Logged In: YES
user_id=31435
Looks good to me, although I'd collapse the new code to just:
if (cmp != 0)
return cmp < 0 ? -1 : 1;
Marked Accepted and assigned back to you for checkin (or if
you can't, assign back to me). Proabably affects 2.4 too.
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