Unable to call each on a lockstep range containing 2 or more ranges

[maik klein via Digitalmars-d-learn]

On Wednesday, 18 November 2015 at 13:51:59 UTC, John Colvin wrote:
> On Wednesday, 18 November 2015 at 12:20:42 UTC, maik klein 
> wrote:
>> [...]
>
> I think this is a bug, please report it at issues.dlang.org and 
> perhaps there will be an explanation or it will be fixed.
> In the mean time, something like this should work:
>
>   auto arange2 = zip(ai[],ai1[],ai2[]);
>
>   arange2.each!((t) => writeln(t[0], t[1], t[2]));
>   // or if you really must have the names:
>   arange2.each!((t) => (a,b,c){ writeln(a, b, c); }(t.expand));

Thanks, but the problem I have with zip is that it doesn't work 
with "ref".


for example

auto arange3 = zip(ai[],ai1[],ai2[]);
foreach(ref a; arange3){
   a[0] = 42;
}
Won't change anything. Is this another bug?