On 03/10/2012 01:00 AM, Manu wrote:
On 10 March 2012 01:17, Timon Gehr <[email protected]
<mailto:[email protected]>> wrote:

    On 03/10/2012 12:02 AM, Manfred Nowak wrote:

        Manu wrote:

            I'm just talking about the ABI for returning multiple
            values, not
            chaining


        Does this mean, that you want a special type of "function"? For
        example
        this would be disallowed statement: `auto result= f( g(
        parameters));',
        if `f' and `g' are functions returning multiple values?


    This needs to work. Multiple return values should integrate with the
    existing language support for tuples.


What should that do exactly? A function that returns multiple values is
passed as an argument to another function... what exactly is fed to
which arguments of the outer function?

It would work like built-in tuples already do.

(int, int) foo(int a, int b){return (a,b);}

assert(foo(foo(foo(foo(1,2))))==(1,2));

(int, int) goo(int a, int b, int c){return (a+b, c);}

assert(goo(foo(2,3),1) == (5,1));


Describe how you see multiple return values working through tuples,
while satisfying the issues I raise in my first couple of posts?

I have done so in my other post, you may refer to that one if something is still unclear: http://forum.dlang.org/post/[email protected]

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