I can't, but I also think your premise is not correct ("reading the code line by line" "without spending at least a week in that"). A lot of production C code i

I can't, but I also think your premise is not correct ("reading the code line by line" "without spending at least a week in that"). A lot of production C code is inscrutable without a good understanding of the language, and to understand many common constructs (e.g. overflow checks) you just have to know it. That trivial code is trivial to understand... well... that's true in most languages, no?