[Patch] libstdc++/21244

[Paolo Carlini]

Gabriel Dos Reis wrote:

>Well, I do not believe in them, but that does not matter for this patch :-)
>Unnamed enumerations or class types should be treated as if given
>unique names in the program (just like unnamed namespaces).  But, that
>is something to be taken to the committee.
>  
>
I see. But we have a real issue here: due to the issue discussed in
c++/19404 in my opinion we should basically avoid any use of anonymous
nums. At least this is my understanding. If you can figure out a safer
strategy for this issue, please share it... ;)

Paolo.