Range Type

[Bill Baxter]

Janice Caron wrote:
> On 24/03/2008, Frits van Bommel <fvbommel at remwovexcapss.nl> wrote:
>>  > But just to be sure, let's ask the loyal readers of this newsgroup...
>>  > Has anyone here ever used opSlice(T,U), where type T != type U? And if
>>  > so, for what purpose, and could you live without it?
>>
>> It could probably be used with something like this:
>>  <example of end-relative indexing>
> 
> You raise a good point. If we're going to allow
> 
>     auto x = 1..3;
> 
> then I guess we should also allow
> 
>     auto x = 1..$;
> 
> Exactly how that should implemented, I'm not sure - but if we get to a
> solution, it will make ranges mighty powerful beasts!

Another very useful thing to have is a notation for the 'everything' 
slice.   In Python it's just a colon by itself.  It's useful for 
multi-dimensional arrays:
     x[:3,:]
means slice out rows 0-3 of every column.
Used to good effect in NumPy.

--bb