Bartosz Milewski seems to like D more than C++ now :)

[Andrei Alexandrescu]

On 9/20/13 8:54 AM, Joseph Rushton Wakeling wrote:
> On 20/09/13 17:28, Andrei Alexandrescu wrote:
>> Why would there be a performance loss?
>
> Depends on the particular case, but my experience is that _in practice_
> stuff based around range interfaces can often be slower than raw iteration.
>
> I don't think anyone's saying a performance loss is inevitable or
> unavoidable, but there currently is one.

With dmd that's indeed the case. But LLVM is good at enregistering small 
structs, which is how ranges are implemented.

Andrei