Variadic function with parameters all of a specific type

[ketmar via Digitalmars-d-learn]

On Friday, 17 June 2016 at 21:20:01 UTC, Timon Gehr wrote:
> On 17.06.2016 23:00, Nordlöw wrote:
>> I want to create a function that takes a variadic number of 
>> arguments
>> all of a specific type, say T, without having to create 
>> GC-allocated
>> heap array.
>>
>> Is there a better way than:
>>
>> f(Args...)(Args args)
>>      if (allSameType!(Args, T);
>>
>> in terms of template bloat?
>
> alias T=int;
>
> void foo(T[] a...)@nogc{}
>
> void bar()@nogc{
>     foo(1,2,3);
> }

this. the compiler is smart, it is creating a slice of stack 
memory here. note that you can't just assign `a` to, for example, 
global or member: when execution of `foo` ends, `a` will still 
point to stack memory. if you need to store `a` somewhere, be 
sure to `.dup` it.