Return by 'ref' problems...

[Jakob Ovrum]

On Friday, 4 May 2012 at 14:57:14 UTC, Timon Gehr wrote:
>
> What would be the meaning of
>
> void foo(ref void function() fn) { }
>
> ?

Parameter storage classes can only go before the type, while 
function attributes can also go after the parameter list (of the 
function pointer or delegate for this case). So I would think 
that:

     void foo(ref void function() fn) { }

The above 'foo' would receive a function pointer by reference, 
while:

     void foo(void function() ref fn) { }

Would receive a function pointer which returns by ref.