RE: [boost] More VC6 bugs? [compressed_pair]

From: John Maddock (John_Maddock_at_[hidden])
Date: 2001-05-05 06:47:56

>So things are indeed not very good. Of course, a workaround of the
>compressed_pair's assignment problem (ll1 = ll2;) is to explicitly define
>the copy assignment operator for it; but I don't see what we can do about
>the original problem:

Yes we already define an assignment operator for compressed_pair, but I'll
check it again :-(

>and cases like 4-th one from the above code, except documenting the issues
>so users could be aware of them. (well, as for 'compressed_pair', we could
>make MSVC versions of the class 'first' or/and 'second' method(s) to
return
>a copy of the empty class instead of a reference to it , but as I see it
>now, it creates even more problems). hmm.., probably I wasn't very helpful
>:(...
<

Thanks for the feedback anyway, 

I guess the alternatives are:

1) document it.
2) disable the "compressed" part of compressed_pair for VC6

Option (2) doesn't fix the problem for any other classes that use the empty
base class idiom though...

- John Maddock
http://ourworld.compuserve.com/homepages/john_maddock/