Incredible functions... may exist ?

[Rafael Fernandez Lopez]

We can create functions that return values like : CString my_function() { CString my_string="whatever"; return my_string; } BUT I NEED A FUNCTION THAT MAY BE ABLE TO RETURN A CStringArray OBJECT OR SOMETHING SIMILAR WITH SOME DATA !! I mean, something like this: CStringArray my_function() { CStringArray my_array; my_array.Add("VALUE1"); my_array.Add("VALUE2"); return my_array; } THANKX !!!!

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Written by: Rafael Fernández López.

Visit: http://www.maestroprogramador.com

[Joe Woodbury]

If an object has a copy constructor you can do it. It might even be optimized to not be a performance nightmare. For anything but a trivial return value, I prefer passing a reference to the object to be "returned." Anyone who thinks he has a better idea of what's good for people than people do is a swine. - P.J. O'Rourke

[Rafael Fernandez Lopez]

Could you show me an example please ?? I'm really thanked... ;)

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Written by: Rafael Fernández López.

Visit: http://www.maestroprogramador.com

[Joe Woodbury]

void my_function(CStringArray& my_array) { my_array.Add("VALUE1"); my_array.Add("VALUE2"); } Anyone who thinks he has a better idea of what's good for people than people do is a swine. - P.J. O'Rourke

[Rafael Fernandez Lopez]

well, and declare my_array as public ?

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Written by: Rafael Fernández López.

Visit: http://www.maestroprogramador.com

[Christian Graus]

What do you mean ? You pass the array into the function, but you pass it as a reference ( which means you put a & between the type and the variable name ). That means that any changes to the variable within the function also occur to the object outside the function, it's a bit like a pointer, except you have the object, not it's address. Another point - you should use std::vector over CStringArray unless you have pressing reason to use crappy MFC containers. Christian I have drunk the cool-aid and found it wan and bitter. - Chris Maunder

[Joe Woodbury]

What Christian said except about std::vector. I like CStringArray. Works just fine and has less weirdness than vector. Anyone who thinks he has a better idea of what's good for people than people do is a swine. - P.J. O'Rourke

[Rafael Fernandez Lopez]

Yes it was said to pass a reference. I mean, to modify a public CStringArray object from a function. That's a good idea !! Thanx for everything !!

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Written by: Rafael Fernández López.

Visit: http://www.maestroprogramador.com