When is a slice not a slice?

Alix Pexton via Digitalmars-d-learn digitalmars-d-learn at puremagic.com
Fri Jun 6 00:52:08 PDT 2014


On 05/06/2014 8:56 PM, Philippe Sigaud via Digitalmars-d-learn wrote:
>>          enum b = DataAndView(1);
>>          assert (!sameTail(b.data, b.view));
>
> I suppose it's because enums are manifest constants: the value they
> represent is 'copy-pasted' anew everywhere it appears in the code. So
> for arrays and associative arrays, it means recreating a new value
> each and every time.
> In your case, your code is equivalent to:
>
> assert (!sameTail(DataAndView(1).data,DataAndView(1).view));
>
> And the two DataAndView(1), being completely separated, do not have
> the same tail.
>

Ah, Isee, that does kinda make sense ^^ A re-factoring we go...

A...


More information about the Digitalmars-d-learn mailing list