One thing that I've yet to see mentioned is inlining. Almost all the functions/lambdas passed to STL functions in the code are likely inlined. This gives a huge

One thing that I've yet to see mentioned is inlining. Almost all the functions/lambdas passed to STL functions in the code are likely inlined. This gives a huge performance boost and is one of the few cases where C++ is often faster than even C as calls through function pointers can be eliminated.