"I" BTrees on 64-bit boxes can lose bits

Bug #143237 reported by Tim Peters
Affects Status Importance Assigned to Milestone
Fix Released

Bug Description



for the long course. Short course: IO, II, and OI BTree-based data structures intend that the integers fit in no more than 32 bits, but don't detect violations on boxes with sizeof(long) > sizeof(int) (most likely 64-bit non-Windows C compilers). Instead bits from ints can be lost, via implicit downcasting (from long to int) in the C code.

Tags: bug database
Revision history for this message
Andreas Jung (ajung) wrote :

Is this still an issue?

Revision history for this message
Tim Peters (tim-one) wrote :

Yes, it's still an issue.

Revision history for this message
Tim Peters (tim-one) wrote :

Unassigned myself -- I haven't done ZODB work in nearly 3 years :-(

Changed in zope2:
assignee: tim-one → nobody
affects: zope2 → zodb
Jim Fulton (jim-zope)
Changed in zodb:
status: Confirmed → Fix Committed
Revision history for this message
Hanno Schlichting (hannosch) wrote :

Fix released in 3.10.0b2

Changed in zodb:
status: Fix Committed → Fix Released
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