DIP 1016--ref T accepts r-values--Formal Assessment

Nicholas Wilson iamthewilsonator at hotmail.com
Thu Jan 24 09:24:19 UTC 2019

On Thursday, 24 January 2019 at 07:18:58 UTC, Mike Parker wrote:
> Walter and Andrei have declined to accept DIP 1016, "ref T 
> accepts r-values", on the grounds that it has two fundamental 
> flaws that would open holes in the language. They are not 
> opposed to the feature in principle and suggested that a 
> proposal that closes those holes and covers all the bases will 
> have a higher chance of getting accepted.
> You can read a summary of the Formal Assessment at the bottom 
> of the document:
> https://github.com/dlang/DIPs/blob/master/DIPs/rejected/DIP1016.md

> void atomicIncrement(ref shared long x);
> atomicIncrement(myInt);

Raises a good point, not covered by @disable where the intent is 
to modify it and modifying a temporary is wrong. `out ref` 

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