https://gcc.gnu.org/bugzilla/show_bug.cgi?id=21146
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
See Also| |https://gcc.gnu.org/bugzill
| |a/show_bug.cgi?id=13590
Last reconfirmed|2009-02-07 20:18:28 |2020-8-26
Blocks|65608 |94404
--- Comment #7 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Manuel López-Ibáñez from comment #4)
> Do we know how icc resolves the ambiguity?
I assume it checks that the two lookup results for "S" actually name the same
type, and so decides there's no ambiguity.
I think that is correct according to [class.member.lookup]. The declaration
sets for lookup of S in ::C and in ::B and in :S and in ::A<::S> all find the
same type, ::S. So there is no ambiguity.
This was ambiguous in C++03 but that was changed by CWG 39
http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#39
So GCC is wrong.
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65608
[Bug 65608] [meta-bug] friend issues
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94404
[Bug 94404] [meta-bug] C++ core issues
