So I was extending the fresh thread-pool release with a priority_queue. While doing so I ran into multiple issues:

• std::vector<std::atomic<bool>> seems to be invalid code.
  I read that std::atomic is non-copyable and non-movable, while std::vector requires at least either.
• running static analysis (cppcheck) told me flag1 == falg2 comparing the same value.
  Not sure if cppcheck is right here, but I think a compiler might optimize this away...
  Possible solution: declaring bool flag; a volatile.

I really like how simple the Library is 😃

My wip code: https://github.com/Green-Sky/thread-pool/commits/priority_queue
Right now my code consistently fails the "task monitoring" test. I suspect the first issue to be the cause.