Getting The Size of a C++ Function

Question

I was reading this question because I\'m trying to find the size of a function in a C++ program, It is hinted at that there may be a way that is platform specific. My target

Answer 1

No, this will not work:

1. There is no guarantee that your function only contains a single ret instruction.
2. Even if it only does contain a single ret, you can't just look at the individual bytes - because the corresponding value could appear as simply a value, rather than an instruction.

The first problem can possibly be worked around if you restrict your coding style to, say, only have a single point of return in your function, but the other basically requires a disassembler so you can tell the individual instructions apart.