Extra .tupleof field in structs with disabled postblit blocks non-GC-allocation trait
Per Nordlöw
per.nordlow at gmail.com
Wed May 9 14:36:38 UTC 2018
On Wednesday, 9 May 2018 at 14:34:02 UTC, Per Nordlöw wrote:
> On Wednesday, 9 May 2018 at 14:20:41 UTC, Per Nordlöw wrote:
>> If so, we can temporarily modify the trait to exclude the last
>> `void*` member of the `S.tuple`. Given that it's always added
>> as the last member.
>
> Also note that
>
> pragma(msg, __traits(isDisabled, S.this(this)));
>
> fails to compile as
>
> Error: identifier expected following `.`, not `this`
Ahh, but both
pragma(msg, __traits(isDisabled, S.__postblit));
pragma(msg, __traits(isDisabled, S.__xpostblit));
prints true for a struct with `@disable this(this);`
Which one should I pick to check if last element of `S.tupleof`
should be discarded?
More information about the Digitalmars-d-learn
mailing list