Thread: some basic points about user-defined functions

Hi

1: Someone was saying that in a return type user-defined function (which returns a value) one has to have same data type of return value as the declared type of arguments. I think this is absolutely wrong. Because you could have different data types for arguments, further you could have totally different data type for return value. For example,

Code:

bool func(int dummya, float dummyb, long dummyc)

is completely valid function in my view. Please confirm this for me. Thanks.

2: Other point that someone was making about, I think, functions which don't take arguments. Perhaps, he was saying that in such functions you can cout and cin operators, but this is not possible for functions which take arguments. Perhaps, you could make some sense out of it! Please let me know what point was being made if you understand it. Thank you.

Best wishes
Jackson

1) Correct, you can return any type you want from a function regardless of parameters.

2) You can use cin and cout wherever you want as long as you have iostream included in the source file and the syntax is correct.

> 1: Someone was saying that in a return type user-defined function ...
That's easy, just stop listening to them from now on - they're completely ignorant and have nothing useful to say about C++ or programming.

To be pedantic, that's not true. You can use them. They just might not do any good.
But then again, they go via the standard input/output which can be redirected to, say, files.