I've been scouring the Internet for the best way to interview C++ developers. I'm new at the whole process but I do like finding out what other people have learnt, so maybe I can miss out some of the initial mis-steps.
Having technical questions to ask isn't the only part, but I did find some quite intersting C++ ones here and here. The thing about these questions is that they are more to start a technical discussion than give a 100% accurate answer.
The best resource I found was more discussion based, where people reveal their own techniques to find the right candidates. It can be read here.