STL or Qt containers?

Question

What are the pros and cons of using Qt containers (QMap, QVector, etc.) over their STL equivalent?

I can see one reason to prefer Qt:

Answer 1

One of the main issues is that Qt's API expects you to provide data in Qt's containers, so you may as well simply use the Qt containers rather than transforming back and forth between the two.

Also, if you're already using the Qt containers, it might be slightly more optimal to use them exclusively, as you would not have to include the STL header files and potentially link in the STL libraries. However, depending on your toolchain, that may happen anyway. Purely from a design perspective, consistency is generally a good thing.