Re: .. a way to return two references from a function ?

From:

fred.l.kleinschmidt@boeing.com

Newsgroups:

comp.lang.c++

Date:

Wed, 27 Feb 2008 07:37:58 -0800 (PST)

Message-ID:

<6befc09c-2029-4f4d-a51c-3cc28620af9b@d21g2000prf.googlegroups.com>

On Feb 27, 6:54 am, Lutz Altmann <lutz.altm...@mastersong.de> wrote:

hello,

i try to write a class-function which can return two arguments by
reference.
My idea was to encapsulate the references in a struct :

struct DataUnit
{
SomeClassType& m_object1;
SomeOtherClassType& m_object2;

};

So that the function can return the two references by using the
struct :

DataUnit processSomething();

My question is: How can i create the struct in the function ?
I've tried the following:

DataUnit returnValue = { m_someobject1,m_someobject2};

but it doesnt work.

Is there a way to initialize the references ? maybe there is another/
better
way to return two references from the function?

Note: The function-caller only has access to the interface of the
classes (of the return references)!

Thanks in advance,
Lutz

Return a pointer to the struct, not the struct.

DataUnit *processingSomething() {
    DataUnit *x = new DataUnit();
    // ...
    return x;
}

But why bother with the struct in the first place?

void procewsingSomething( SomeClassType &a, SomeOtherClassType &b) {
...
}

--
Fred Kleinschmidt