auto ref is on the docket

[Andrei Alexandrescu via Digitalmars-d]

On 6/21/15 11:31 PM, Andrei Alexandrescu wrote:
> On 6/21/15 10:25 PM, Walter Bright wrote:
>> The idea is that fun(5) would be lowered to:
>>
>>     auto tmp = 5;
>>     fun(tmp);
>
> I don't think that lowering is recommended - it prolongs the lifetime of
> the temporary through the end of the caller. But that may be actually a
> good thing.

On second thought - Walter's lowering, which makes the rvalue last more 
than strictly necessary, may be the most flexible of all at the cost of 
more resource consumption (for types that define destructors). -- Andrei