[Qt-interest] Qt Containers (or: why I must use STL)

[Stephen Bryant]

Hello everybody!

Am I the only person to have run into this?

If I add items to a container, there is no way to tell if it failed.
Given that Qt doesn't throw exceptions, and the methods return void,
does anybody know how to do this?  I tried resizing up and up to see
what happens, and the whole program hung.

Actually, it's worse than that: the reserve() and resize() methods
take a signed int.  Signed?  That's just plain silly!
On x86_64, int is still only 4 bytes, so despite masses
of memory, I can never have a byte array larger than 2GB.

I know how I'd like to fix it, but I suspect it may not be possible
without breaking binary compatibility - at least on 32-bit.  Where
we now have methods such as this:

    void QVector::resize ( int size );

I would add this (and mark the other as deprecated):

    bool QVector::resize ( const size_t size );


I didn't enter a bug report for this.  I found one already: 132094
(QVector crashes when allocation fails).  It was rejected with the
following reason: Qt doesn't handle out-of-memory scenarios cleanly.

Is that a joke?  It doesn't handle them at all!  That in itself is
quite a major bug.

Does anybody have any other solutions?  Perhaps somebody from Nokia
would care to comment.  For now, I'm using Qt with STL containers. :-)

Steve