I've a question about the thread safety of std::set. As far as I know I can iterate over a set and add/erase members and that doesn't invalidate the iterators. But consider following scenario: thread 'A' iterates over a set of shared_ptr<Type> thread 'B' occasionally adds items to this set. I've experienced segfaults as the program runs and I'm not sure why this happens. Is lack of thread safety the cause?

Is the C++ std::set thread-safe?

I've a question about the thread safety of std::set.

As far as I know I can iterate over a set and add/erase members and that doesn't invalidate the iterators.

But consider following scenario:

I've experienced segfaults as the program runs and I'm not sure why this happens. Is lack of thread safety the cause?