David Abrahams wrote: > "Paul Mensonides" <[EMAIL PROTECTED]> writes: > > > Aleksey Gurtovoy wrote: > >> David Abrahams wrote: > >> > Here's an example I just cooked up of using the PP lib to solve a > >> > classic C++ OO problem: repeated boilerplate in the definition of > >> > Pimpl classes. > >> > >> There is another variation of the idiom, sometimes called > >> "hidden state", which doesn't have the shortcoming in the first place: > > > > Dave, do you still think this would be a good example to add to the > > docs? > > Well, yeah. I don't understand how Aleksey's idiom accomplishes the > same things as pimpl (yet).
I was talking about pimpl as described here - http://www.gotw.ca/gotw/024.htm. > I need to be able to plug in different > runtime-polymorphic implementations behind the handle classes I'm > defining. Sounds like a job for an interface class + a factory function, unless your objects need to be passed by value. In any case, IMO the latter one is more correctly described as "handle/body". Aleksey _______________________________________________ Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost
