Multiple return values...

[Andrei Alexandrescu]

On 3/9/12 4:10 PM, Timon Gehr wrote:
> (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));

This is a recipe for disaster because of the implicit expansion. 
Consider forwarding the result of foo to some template. Should the 
template take the tuple type, or automatically expand the tuple and 
accept individual values?

Andrei