opAssign and const?

[Steven Schveighoffer]

On Fri, 04 May 2012 02:52:49 -0400, Era Scarecrow <rtcvb32 at yahoo.com>  
wrote:

> On Friday, 4 May 2012 at 06:48:40 UTC, Jonathan M Davis wrote:
>> If you make the one which isn't a ref const as well, it'll probably  
>> work.
>
>   Yeah I think so too. It will just be either a direct copy or I cast  
> the object as const and pass it through. Seems like extra work to me and  
> should be handled by the compiler. Anyways, thanks for looking at the  
> problem with me.

I don't think it will make a copy of a temporary even if it's cast to  
const.  I think marking the non-ref version as const will solve the  
problem how you wish (as long as the argument really *isn't* modified  
inside that function).

-Steve