DIP1000: Walter's proposal to resolve ambiguity of ref-return-scope parameters

[zjh]

On Thursday, 25 November 2021 at 16:22:32 UTC, Dennis wrote:

> used symbols such as `^%` and `^$` (for example), that wouldn't 
> make it simpler.

I've been saying, offer options, rather than the only 
one.`(||/&&)` or `and|or` is provided.
Both `simplified symbols and complete words` are provided for 
users to choose.
Of course, it's best to complete the attribute deduction by 
compiler, and the user doesn't have to write it at all.