[patch] : Improve std::search on v7

[Gabriel Dos Reis]

Paolo Carlini <pcarlini@suse.de> writes:

| Gabriel Dos Reis wrote:
| 
| >| You said there are problems with virtuals. Ok, let's deal with that in a
| >| radical way: we check whether the base class at issue, Compare, is
| >| *really* empty, tr1::is_empty is false in case of virtuals, and only in
| >| those safe cases, we *derive* from it and exploit EBO.
| >
| >At this point, I'll wait to see the concrete codes before I do any further
| >comment.
| >
| As I said, there is no point in working out those details, because we
| don't know how to deal with unions.

Ah, now I see.  It did not matter I understood what you said because
you don't know how to deal with unions, but it did matter that I did
not say I did not understood.  Okaaaayyyy.  That is fine too.

-- Gaby