[Kde-pim] Review Request 120967: prevent failed ImapInterval interval overflow assertion

[René J.V. Bertin]

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https://git.reviewboard.kde.org/r/120967/
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Review request for KDEPIM.


Repository: kdepim-runtime


Description
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This seems to resolve the issue I reported a bit earlier tonight:
https://bugs.kde.org/show_bug.cgi?id=340614

The patch avoids the potential overflow by checking against the bounds before incrementing the interval's starting point (setBegin): see https://bugs.kde.org/show_bug.cgi?id=340614#c5

I really couldn't resist correcting the spelling of the interval variables (from interval*l*) but had I foreseen it'd make the diff so hard to read I'd have done it in a second step...


Diffs
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  resources/imap/batchfetcher.h a666714 
  resources/imap/batchfetcher.cpp f6b1310 

Diff: https://git.reviewboard.kde.org/r/120967/diff/


Testing
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On Kubuntu 14.04 with KDE 4.14.2 from the kubuntu-backports PPA; all kdepim packages built with clang-3.5


Thanks,

René J.V. Bertin

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