Call site 'ref'

[Stewart Gordon]

On 15/01/2012 14:12, Peter Alexander wrote:
<snip>
> I agree with requiring ref at the call site in principle, although it would be too much of
> a breaking change to introduce now. Perhaps allow it, and issue a warning if not used?

Maybe phase it in in this sequence:

1. Allow ref/out at call site.
2. Add a warning for if ref/out at call site is omitted.
3. Deprecate omitting ref/out at call site.
4. Require ref/out at call site.
5. Allow overloading of functions based on parameter storage class, as much as makes sense.

Stewart.