Operator overloading question

[mist]

On Monday, 21 January 2013 at 18:53:08 UTC, Ali Çehreli wrote:
> ...
> Can you elaborate. I don't see the duplication.
>
> Ali

First we check that parameter is one of allowed ones in 
constraint. Then we do the very same check using the very same 
operator list to actually make a right dispatch. Looks wrong to 
me, we shouldn't need to.

I need to clarify though: I am perfectly aware that constraints 
are superior solution in many cases, especially when it comes to 
multiple overloads for library snippets. But exactly in given 
example static assert feels as better suited.