On Tuesday, 17 November 2015 at 12:22:22 UTC, Marc Schütz wrote:
Ok, that's a strange implementation of opIndex(). Usually, a
parameter-less opIndex() is supposed to return a slice into the
full range, but yours returns a size_t, which of course can't
be iterated over.
The change that made this stop working is:
https://github.com/D-Programming-Language/dmd/pull/4948
This contains, among others a fix for issue 14625 "opIndex()
doesn't work on foreach container iteration":
https://issues.dlang.org/show_bug.cgi?id=14625
This allows to iterate directly over containers, without
needing to slice them first. I guess it's a bit too eager,
because if the object is already iterable without slicing (as
in your example), it could just do that. On the other hand,
it's a corner case, and it might actually be preferable to
slice always, if the iterable supports it...
In any case, I'd suggest you fix your opIndex(), except if
there's a really good reason it is as it is.
I see. Thanks for the explanation. What would be the easiest fix
for this example?
