how to get the exact size of a function

[onlyhuman23]

I have a few functions and their function pointers. I have to display the memory size of those functions. The problem is that if I use sizeof operator on the function pointers they return a constant value. so how then can I get the exact size of a function.

[Alexey B]

Most compilers and linkers put funtions into the object file in the order in which they appear in the code. Therefore you can put a dummy function after the function the size of which you want to know, than simply substract the adresses.

[onlyhuman23]

isnt there another proper way?

[Alexey B]

If there is, Jeffrey Richter doesn't know about it. My advise was from his book.

[poccil]

Remember that function pointers are just that--pointers. Therefore, they are expected to have the same size as any other pointer in the program (4 or 8 bytes).