DIP Mir1 Draft: Variadic template parameters with the same time.

[Ilya Yaroshenko via Digitalmars-d]

On Thursday, 29 September 2016 at 22:03:36 UTC, ag0aep6g wrote:
> On 09/29/2016 11:28 PM, Ilya Yaroshenko wrote:
>> [...]
> [...]
>> [...]
>
> When the values themselves are known at compile time, we can 
> convert them to size_t before generating the function:
>
> ----
> enum isIndex(T) = is(T == size_t); /* by pineapple */
> enum asIndex(size_t value) = value;
>
> template transposed(Dimensions...)
>     if (Dimensions.length)
> {
>     import std.meta: allSatisfy, staticMap;
>     static if (allSatisfy!(isIndex, typeof(Dimensions)))
>     {
>         void transposed() {} /* simplified for the example */
>     }
>     else
>     {
>         alias transposed = transposed!(staticMap!(asIndex, 
> Dimensions));
>     }
> }
>
> alias t1 = transposed!(1, 2, 3);
> alias t2 = transposed!(1LU, 2LU, 3LU);
>
> static assert(&t1 == &t2); /* passes */
> ----

Thanks again!