When reading C you never know if the writer is try to deliberatly disguise a functions function in order to make it harder to reverse engineer which is actualy a valid thing to try to do, or wether its just badly written.All high level code suffers from the problem of there being too many degrees of freedom and an almost infinite number of ways of achieving the same result.
when i work with VHDL as I do quite often its sometimes at the same time as writing C code drivers for the hardware described by the VHDL so it all gets confusing and i end up with some wierd hybrid language ;-)