29
On harmful overuse of std::move - The Old New Thing
(devblogs.microsoft.com)
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
this post was submitted on 25 Nov 2023
29 points (96.8% liked)
C++
1732 readers
1 users here now
The center for all discussion and news regarding C++.
Rules
- Respect instance rules.
- Don't be a jerk.
- Please keep all posts related to C++.
founded 1 year ago
MODERATORS
@lysdexic I did.
It doesn't look like it, otherwise you'd be aware that the whole point of this submission is that casting return values with
std::movedisables RVO.@lysdexic You claimed otherwise:
"
These std::move invocations are harmless, as they only cast objects to their rvalue reference.
"
If you were right, we wouldn't have the motivation to look at this in EWG.
I am right. Not benefiting from RVO does not mean you're harming anyone.
Again, I recommend you read the submission and also the discussion.