Discussion Thread: DIP 1038-- at nodiscard--Final Review

[Paul Backus]

On Friday, 5 February 2021 at 14:09:09 UTC, claptrap wrote:
> Tbh i didnt even know D had warnings, nor that it warned about 
> unused returns.

You would have learned if you'd read the DIP all the way through. 
;)

https://github.com/dlang/DIPs/blob/ab056150975a9a8db5b5da3dbffdd81529802a49/DIPs/DIP1038.md#in-d

> Cant see the point with stuff like sqrt() though.

It's a generic warning that applies to any discarded expression 
without side effects. For example, it will also trigger if you 
write

     1 + 1;