The two interviewers were very nice. They asked about my previous job and past projects.

Then, they asked questions mainly focused on my understanding and knowledge of programming. There weren't really any direct code questions, but later there was a coding question about synchronization with many readers and one writer.

They wanted me to explain how a virtual function works exactly. They also wanted me to state the final output of a given simple code based on virtual functions. Additionally, they requested the implementation of a Locker class for the many-readers, single-writer problem.