How to properly use variadic templates (functions)?

[rempas]

On Monday, 20 December 2021 at 22:02:02 UTC, russhy wrote:
> Here how i'd do, but i'm not sure how to keep track of the 
> index of the arguments, i forgot..
>
> ```D
> import core.stdc.stdio: putc, stdout;
>
> void print(T...)(string prompt, T args)
> {
>     foreach (a; args)
>     {
>         alias A = typeof(a);
>
>         static if (is(A : string))
>         {
>             for (int j = 0; j < a.length; j++)
>             {
>                 putc(a[j], stdout);
>             }
>         }
>         else
>         {
>             // handle your other types
>             print("", A.stringof);
>         }
>     }
>
> }
>
> void main()
> {
>     print("Prompt (ignored)", "Hello", " world!\n", 123);
> }
> ```

This will not do for me because I want to do formatted output and 
I need the index. But thanks a lot for tying to help!