foreach and retro

[Joseph Rushton Wakeling]

On 02/07/12 18:43, bearophile wrote:
> It's not a bug, it's caused by how ranges like retro work. retro yields a single
> item. In D you can't overload on return values, so foreach can't try to call a
> second retro.front overload that yields an (index,item) tuple (that later
> foreach is able to unpack on the fly) instead of the retro.front that just
> yields the item.

Ahh, OK.  Clear, just a little surprising.

> To solve that problem this is what I have suggested to add to Phobos:
> http://d.puremagic.com/issues/show_bug.cgi?id=5550

Looks like a nice idea!

The reason I was interested was because of a case where a foreach_reverse was 
called for across an array, but where it was useful to flip the indices as well.