Review Request 125971: k7zip: fix memleaks, lower memory usage

[Nick Shaforostoff]

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https://git.reviewboard.kde.org/r/125971/
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Review request for KDE Frameworks and Laurent Montel.


Repository: karchive


Description
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i couldn't find the place where the pointers contained in the member arrays are deleted so i have added their releasing. for this i have used qDeleteAll (you can search for qDeleteAll in the diff)

also i have reordered members of FileInfo to reduce its 'sizeof'
also using qvector for storing pointers is as fast as using qlist (or even faster) and needs less memory
also i have switched qvector acces from operator[] to .at() because it is const (doesn't call detach() method internally)
also i have disabled the code that was filling 'method' string because it was not used anywhere after


Diffs
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  src/k7zip.cpp 321620a 

Diff: https://git.reviewboard.kde.org/r/125971/diff/


Testing
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compiles fine


Thanks,

Nick Shaforostoff

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