Warning re ignored return value

[max haughton]

On Friday, 5 August 2022 at 00:14:33 UTC, Steven Schveighoffer 
wrote:
> On 8/4/22 7:39 PM, Don Allen wrote:
>> Is there a way to request that dmd warn about instances where 
>> the return values of non-void functions are ignored? dmd 
>> appears not to do that by default and I checked the 
>> documentation of the command-line options and didn't see it 
>> (hopefully I missed it; it would be nice to have).
>> 
>
> Not sure if it's implemented yet but there's @mustuse:
>
> https://github.com/dlang/DIPs/blob/master/DIPs/accepted/DIP1038.md
>
> -Steve

It's implemented.