how to compare immutable ints?

[Steven Schveighoffer]

On Tue, 18 Jun 2013 15:37:44 -0400, Charles Hixson  
<charleshixsn at earthlink.net> wrote:

> (Sorry if this double posts.  I'm having trouble getting through at all.)
>
> How should I compare immutable ints to ensure that they are actually  
> equal?
>
> I was quite surprised to receive the following error message:
>
> cbt2.d(732): Error: function object.Object.opEquals (Object o) is not  
> callable using argument types (immutable(int))
>
> when I tried to assert that two values were equal.  They were (should  
> be), indeed, immutable ints, but I'd prefer that I could check that they  
> were equivalent without printing them both out.  (I'm having a bit of  
> trouble keeping my logic straight, so I'm trying to assert many things  
> that should obviously be true.  And sometimes I've been surprised.)
>

The error quoted above suggests you are trying to compare an object type  
with an int.  Can you give some more context?  You can do that, but you  
have to overload opEquals.

-Steve