Tuple indexing and slicing

[Timothee Cour]

On Thu, Jul 11, 2013 at 1:05 AM, Simen Kjaeraas <simen.kjaras at gmail.com>wrote:

> On 2013-07-11, 00:52, Timothee Cour wrote:
>
>  Why not support Tuple indexing and slicing with [] syntax?
>>  (see below for a way to index/slice a tuple)
>>
>> void main(){
>>   alias T=Tuple!(int,double);
>>   pragma(msg,T[0].stringof);//_**expand_field_0
>>   //pragma(msg,T[0..2].stringof)**; //Error: cannot slice type
>> 'Tuple!(int,
>> double)
>>   pragma(msg,typeof(T.init[0]).**stringof);//int
>>   pragma(msg,typeof(tuple(T.**init[0..$])).stringof);//**
>> Tuple!(int,double)
>> }
>>
>
> This works:
>
> import std.typecons : Tuple, tuple;
> void main() {
>     alias T = Tuple!(int, string, float);
>     T a;
>     Tuple!(int, string) b = tuple(a[0..2]); // Slicing values.
>     Tuple!(T.Types[1..3]) c; // Slicing types.
> }
>
> --
> Simen
>


ah, yes, I forgot about Types, thanks! Documentation for it could be
improved though...
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