[cozzyd]

Indeed, I just made a POC with compiler sections: https://github.com/cozzyd/examc

This implementation only works with gcc though probably (it uses the automatic __start_SECTION and __stop_SECTION that gcc generates but clang doesn't seem to... there are likely hacks to make this work anyway though).

In principle, this approach allows interspersing your tests throughout a shared library instead of all in one file (though in that case you wouldn't want the testing function to be called main and you would need a separate driver program for test).