Range returning an array

[Steven Schveighoffer]

On Tue, 09 Apr 2013 18:53:56 -0400, Joseph Rushton Wakeling  
<joseph.wakeling at webdrake.net> wrote:

> On 04/10/2013 12:50 AM, Joseph Rushton Wakeling wrote:
>> I did consider something like that.
>
> By the way: the reason that I rejected the temporary-variable choice was  
> that I
> couldn't really see the difference cost-wise between doing that, versus
> returning var.dup from front().  Especially as it's not necessarily  
> guaranteed
> that front will be called frequently (I might just popFront() until the  
> range is
> empty and then take the final front value).

Calling front after empty is not good range policy, once empty, front is  
possibly invalid or points at invalid memory.

-Steve