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+--- Thread: Changing return types. (/thread-3212.html)
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Changing return types. - PlayGGY - 02-16-2004
Hey, I am working on a program in Direct X (C++, not C#), and want to practice working on physics using particles in QBasic. I haven't programmed in QBasic in a while, and I can't seem to make functions return my user-defined types. This must be possible (I can't imagine MS would want to make you pass by reference instead).
Please tell me this is possible, I don't want to have to go ahead and learn C# for quicky practice things like this.
Changing return types. - Sterling Christensen - 02-16-2004
QB doesn't let you return user defined types, but you can use a parameter instead.
Changing return types. - PlayGGY - 02-16-2004
That is what I was afraid of...
Anyone know why they decided to force you to pass by reference?
Changing return types. - na_th_an - 02-16-2004
They didn't. You can use BYVAL to pass by value
Changing return types. - PlayGGY - 02-16-2004
Quote:They didn't. You can use BYVAL to pass by value
Sorry, I meant "Why did they force you to pass by value instead of returning a user-defined type?"
Every other language I know of allows you to return any type, not just the built in.
Changing return types. - adosorken - 02-16-2004
Every other modern language allows you to do this. However, keep in mind that QB is exceptionally old.
Changing return types. - PlayGGY - 02-16-2004
Quote:Every other modern language allows you to do this. However, keep in mind that QB is exceptionally old.
Well, C and Scheme are older than QB, as well as I beleive C++ and Lisp.
Changing return types. - adosorken - 02-16-2004
BASIC is older than C. And virtually all modern BASICs allow your own return types for your own functions. QB 4.5 simply doesn't. I am not sure, but I think 7.1 actually does. Anyone care to confirm this? I don't have a copy handy at the moment.
And don't forget that QB is a compiler that compiles a form of BASIC. C has many compilers but there is no compiler called C.
Changing return types. - PlayGGY - 02-16-2004
BASIC is older than C, you are right, but it came out about 20 years befroe QBasic. I was just wondering if anyone knew why MS didn't see the need for functions to return user-defined types,.
Changing return types. - adosorken - 02-16-2004
No idea.
It'd be quite useful though... Oh well...VB does it quite well 