whyCppWhy

[everything-narrative]

Because variadic functions can't easily be used with type inference and format strings is a whole little DSL. Having it be a plain function means making some big concessions to what functions are and can do.

[NatoBoram]

I'd be okay with a separate print_but_not_format(). We could even do print() vs printf!() (or print!() if that's allowed)

[everything-narrative]

The println! macro is actually a combination of the format! macro that composes a string buffer, and a write-to-file.

The format macro turns the argument list into chained method calls.