About ref used for performance reasons with struct

[Era Scarecrow]

On Monday, 11 February 2013 at 19:14:15 UTC, Namespace wrote:
> I'm a bit confused now. It's your intention to create (worst 
> case) 2^n permutations of the same function for each potential 
> ref parameter (which would be the same behavior as 'auto ref') 
> or that the compiler could pass big structs by ref without code 
> bloat?

  For some reason I doubt that's what he means. Seems more often 
than not only one or two parameter(s) need to be ref-able, so in 
most cases with 1 variable two (and only two) functions be made 
and it choose between the two based on the result. Larger than 
that and another method would have to be selected.