template ref parameter

[Jonathan M Davis]

On Wednesday, November 21, 2012 12:57:57 Jack Applegame wrote:
> But sometimes ref becomes a part of type. For example "void
> delegate(ref int)" and "void delegate(int)" are different types.
> Is it possible to cast from one to another safely? For example:

That's because ref is being used on a function parameter. That gives the 
function a different type, but you can't just use ref int by itself. As I said, 
it's only applicable to function parameters, return types, and foreach loop 
variables.

> void foo(ref int);
> void function(int) fp;
> fp = cast(typeof(fp)) foo; /// is it safe???

No, it's not safe.

- Jonathan M Davis