Tuple DIP

[Guillaume Boucher]

On Tuesday, 4 June 2019 at 18:02:30 UTC, Jacob Carlborg wrote:
> On 2019-06-03 19:43, Timon Gehr wrote:
>
>> This has not been discussed, but I agree it should be 
>> addressed somehow. The main issue is that right now "_" is a 
>> valid identifier.
>
> Can a '*' be used instead?

Not in all cases:

auto *= G(); // would be very strange if this is allowed

But it can in tuples, which is the second most relevant use case.

The most relevant use case is this one:

foreach(*;0..n) { ... }

So either there's a special case for that or we just continue 
using _ in those loops (the scoping doesn't matter there).  So 
'*' can work, but is a bit hacky.