innover

I like the technique to generate compile error when there is a mismatch between format string and actual argument list and type - This is what only statically typed language can do and dynamically typed languages like python can't do.

Maybe this technique could be applied in printf or other C++ APIs using format string.

A friend of mine is recently writing C++ web framework similar to Python Flask.

It has many interesting features like compile-time routing URL parameter checking, easy and fast (probably fastest among C++ json libs) json implementation by taking full advantage of C++11. If interested, take look of following code and repository:

https://github.com/ipkn/crow/blob/master/example.cpp