How to properly use variadic templates (functions)?

[rempas]

On Tuesday, 21 December 2021 at 17:33:09 UTC, Steven 
Schveighoffer wrote:
>
> The reason your original isn't working is that indexing a list 
> of differently-typed things cannot be done using a runtime 
> index.
>
> I'd say that an inner function + static foreach + switch is the 
> best way to convert from runtime to compile-time values. And in 
> general, I would say having function templates that handle each 
> arg type are usually conducive to clean and easy code.
>
> But in the case you are suggesting, as long as you don't need 
> to iterate them out of order, what you can do is foreach the 
> args tuple, and do something like:
>
> ```d
> foreach(arg; args)
> {
>    writeUpToNextDelimeter(prompt); // updates prompt to point 
> at next delimiter
>    processArg(arg, prompt);
> }
> ```
>
> -Steve

Got that! Thanks a lot Steve!