PATCH: Fun with magic numbers and the various system headers

[Paolo Carlini]

Hi Loren,

>                                                                  Is
>changing this class, ctype<wchar_t>, an effective ABI change (Geoffrey
>thought so)?  It is exposed in an installed header but I haven't yet
>traced how it is actually used in the library and/or user code.  If
>the use is completely inside the library, then I'd suppose it is not
>really an ABI change.  However, are we that lucky?
>  
>
honestly, I'm a little pessimistic: sizeof(ctype<wchar_t>) would change, 
indeed,
and the facet itselfs is definitely supposed to be used outside the 
library, it's
just a locale facet, provided to the users...

Paolo.