Creating new parameters question

[PutraenusAlivius]

So I was learning about creating new functions in the wiki article. Now I was reading about it and I just made a function line like this.

Code: (Select All)

int FUNCTION(sig 1, sig 2, and so on)
{
}

Like so right? But, how do I know that the new parameter will do exactly what I said, I mean what happens if something's wrong? Is it tested that it'll do exactly what I describe?

NOTE: I haven't test it, in fact I just found them today.

[Your Computer]

The parser (or compiler) will exit with an error if the function is improperly formed or does not exist when called.

[Adrianis]

^ this, but also...

how do I know that the new parameter will do exactly what I said

The parameter will do what you tell it to do in the logic of the function. Parameters are simply variables of a given type that you provide to the function when you call it, they don't 'do' anything in-and-of themselves

Is it tested that it'll do exactly what I describe?

You haven't 'described' anything for it to do. When you write some code in the function, you should have a good idea of how to test if it's working