Thread: Newbi Hel/newbi question

Originally posted by gamer4life687
yes there is a effiency difference. in memory.

Could you elaborate please?

When you have a function header plus body before main(), it gets it a memory address, just as a prototype would, then it "preprocesses" the body (saves the process in memory without actually executing it).

When you call it in main it then excutes the body. If the function was prototyped and the body comes after main(), the when it's called is loads the process and executes at the same time.

These two methods don't really do anything different. The same steps take place. The only difference is: when you don't prototype, the actual process (body) of the function stays in memory a little longer than it has to.

As for code readability: always, always prototype. It's a good practice to get into.

Seems the logical order. But, who knows? I was just reiterating someone much more keen on the subject than I am.

Change you #include statements to include <iostream> and <cstdlib> (no .h) instead...And use the std namespeace:

Code:

using namespace std;

Originally posted by Wick
When you call it in main it then excutes the body. If the function was prototyped and the body comes after main(), the when it's called is loads the process and executes at the same time.

I think I know what you're trying to say here, but, what exactly does the bold bit say?

Originally posted by alphaoide
It means the function will only load and execute if it's called. If you put the function's body before main, the function would load before we even call and sit in memory.

What I meant was, Wick's post actually makes no sense grammatically. I understand how protoypes work now, but I just wanted to see what he meant to write.

I meant to say "then when it's called it loads the process and executes at the same time."

tired typos

Cheers.