Repo with random, mini C++ projects.
Check out DSP_test for some examples using function templates, class templates, digital signal processing, multithreaded processing.
Check out RayTracer for a multithreaded dispatcher/request/worker architecture that generates and stores image. Not quite finished, but the dispatch architecture works great.
Check out Connect Four to play a game of connect four via the command line. Very invigorating.
All other projects attempt to utilize functionality akin to their title (e.g., "Pointers").