Re: [boost] [review] Conversion - About specialization, overloading and ODR

Subject: Re: [boost] [review] Conversion - About specialization, overloading and ODR
From: Gordon Woodhull (gordon_at_[hidden])
Date: 2011-08-31 13:02:23

On Aug 31, 2011, at 12:47 PM, Roman Perepelitsa <roman.perepelitsa_at_[hidden]> wrote:

> The rule I follow is that operator+(x, x) can be provided only by the author
> of x. If xdoesn't have such operator, third parties can't add one. The same
> applies to swap and other functions that are expected to be found by ADL and
> form the type's interface.

If you were defining operator+(X,Y) you'd have the same problem. Any customization point involving two or more types seems to suffer this problem.

Cheers
Gordon