[boost] Re: Imminent Code Breakage

From: David Abrahams (dave_at_[hidden])
Date: 2003-06-02 21:40:16

Beman Dawes <bdawes_at_[hidden]> writes:

> At 07:57 PM 6/2/2003, David Abrahams wrote:
>
>  >I'm going to want to replace the old Boost iterator adaptors
>  >implementation with the new one in the Boost sandbox pretty soon, and
>  >while they are similar in intent and spirit, they have totally
>  >incompatible interfaces.  In fact, the new one lives in a subdirectory
>  >boost/iterator, but I think it would be highly unwise to keep the old
>  >header around since it defines some of the same names, notably, um,
>  >"iterator_adaptor" ;-).  It would be an invitation to ODR violations.
>
> Just to verify, the new interface corresponds to the proposal now
> before the C++ committee?

Yes.

>  >This is going to break every boost library and every user which is
>  >depending on the current CVS version of iterator_adaptors.  The new
>  >adaptors are so much better designed and easier to use that making the
>  >transition should be cake, but before I do anything drastic I want to
>  >hear how loud the pre-emptive screaming is ;-)
>
> Is the sandbox version ready? 

Yes.

> I'd like to have the filesystem library ready to change
> simultaneously so the regression tests themselves don't break. (They
> depend on filesystem, and it depends on iterator_adaptors.)
>
>  >Objections?
>
> Better now than later. Do you have a specific change-over date in mind?

In the next week, or 2 at the outset.

-- 
Dave Abrahams
Boost Consulting
www.boost-consulting.com