"is" operator for structures?

[Steven Schveighoffer]

On Wed, 09 May 2012 10:13:01 -0400, bearophile <bearophileHUGS at lycos.com>  
wrote:

> Gor Gyolchanyan:
>
>> Because the opBinary [...]
>
> Thank for your answer, but I don't carte of "why" the D compiler accepts  
> that. I only care about the D compiler statically refusing that.

This also works too:

int opBinary(string s: "booya!")(...)

or this too:

int opBinry(string s: "+")(...)

opBinary is a valid symbol, and as a valid symbol, it is a valid function,  
no matter whether the compiler calls it in a special way.

I don't think it is a terrible thing, and I think statically disallowing  
that would be a worse idea.

And to answer the OP, 'is' is special, it signals a bitwise compare, no  
matter what the contents of the type being compared.

That being said, I understand why you want to do that.  I don't see any  
way around it.

-Steve