Re: auto ref and non-templated functions

[Namespace]

What does this generate?

auto foo(auto ref S a, auto ref S b, auto ref S c, auto ref S d) { ... }

16 different functions, one for each combination? Sounds like a bad idea.

In my opinion, this should produce only two functions:
#1: auto foo(ref S a, ref S b, ref S c, ref S d) { ... }
#2: auto foo(S a, S b, S c, S d) { ... }