Reducing variadic template combinatorics (C++ was onto something)

[Quirin Schroll]

On Tuesday, 14 October 2025 at 04:30:49 UTC, Steven Schveighoffer 
wrote:
> In a conversation on a pull request for one of my libraries, I 
> came across an interesting revelation. Variadic template 
> functions waste resources for the most part, because much of 
> the time, you don't care about the *relationship* between the 
> parameters. In many such functions, you just process them in a 
> loop.
>
> […]
>
> But... I still want to write `writelines(1, 2, 3, 4)`. The 
> ergonomics there are nice! Is there some way we can capture 
> this same reduction in complexity while still keeping the nice 
> syntax?

Yes, macros. C++ was onto something.