About structs and performant handling

[Daniel Murphy]

"Namespace" <rswhite4 at googlemail.com> wrote in message 
news:qmznbrplexqrdqahgaus at forum.dlang.org...
>> A better way to do with would be to change (or extend) the abi, so that
>> structs over a certain size are always passed by reference with this
>> parameter type.
> And what if you want to pass it by value?

You don't mark it with '&'.

> I am a opponent of such automatic and uncontrollable compiler 
> intervention. Better to manually identify something to be on the safe 
> side.
>

Then I don't understand the point.  If it doesn't need to be automatic, you 
can just do it in your own code (use ref/not ref)

>> Then you only need one version of the function.  We could
>> use auto ref for this.
> 'auto ref' will probably never work for non-template functions, as 
> Jonathan said some time ago.

That is not my understanding.