getNext

[Mehrdad]

On Monday, 9 July 2012 at 14:03:17 UTC, Andrei Alexandrescu wrote:
> On 7/9/12 5:14 AM, Mehrdad wrote:
>> Really, doing something simple should be simple.
>>
>> I don't have any brilliant ideas, but one guess would be 
>> nullable
>> types... if you can return a nullable value, your interface 
>> for an
>> interface could just be:
>>
>> T? next();
>>
>> and that's it... it would return null if nothing is left.
>
> What if you want to return a reference so the user can change 
> it?
>
> Andrei

Huh? You don't... it's an input iterator, not an output iterator!
What would you be changing, exactly?

D's return-by-reference doesn't work the way you expect anyway, 
so it's kinda pointless worrying about it....

@property ref int foo() { }
@property void foo(int v) { }
foo = 2;  // huh?