https://gcc.gnu.org/bugzilla/show_bug.cgi?id=48396
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |accepts-invalid
See Also| |https://gcc.gnu.org/bugzill
| |a/show_bug.cgi?id=56468
Summary|Undeclared library types |std::type_info is
|accepted in namespace std |implicitly declared
Last reconfirmed|2012-04-12 00:00:00 |2021-3-5
--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Adjusting the summary because this is specific to std::type_info, it doesn't
happen for other types.
I think there's some historical reason that G++ pre-defines std::type_info, but
maybe we could make that only valid in system headers. It still causes bugs
even then, because libstdc++ can accidentally rely on the G++ behaviour, which
doesn't work with other compilers (e.g PR 56468).
