Preview features status?
Tejas
notrealemail at gmail.com
Wed Jul 14 17:29:37 UTC 2021
On Wednesday, 14 July 2021 at 14:51:41 UTC, Mathias LANG wrote:
> On Wednesday, 14 July 2021 at 08:24:03 UTC, Tejas wrote:
>> Last question:
>>
>> How do you _exactly_ specify that you're expecting a rvalue
>> reference as a parameter?
>> In other words, what is the D equivalent of this C++ code:
>>
>> ``` func(T&& parameter) { }```
>
> There isn't. `in` is for const references.
> `-preview=rvaluerefparam` will allow you to get a mutable ref,
> but it simply creates a temporary at the call site (so does
> `-preview=in`). To my knowledge, we can't represent that in D
> (and we can't bind to such a definition in C++).
Well... that's not good.
Hope [DIP
1040](https://github.com/dlang/DIPs/blob/master/DIPs/DIP1040.md)
gets here soon then, since rvalue references seem to be
explicitly mentioned as getting added, or are there caveats in
that DIP as well?
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