[Bug c++/45642] g++ 4.6 regression, c++0x, weird mismatch for arguments with forwarded declaration when attributes are involved

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45642

Jason Merrill jason at gcc dot gnu.org changed:

   What|Removed |Added

 Status|UNCONFIRMED |RESOLVED
 Resolution||FIXED

--- Comment #6 from Jason Merrill jason at gcc dot gnu.org 2010-10-14 
16:09:10 UTC ---
This seems to have been fixed by the patch for bug 45984.

[Bug c++/45642] g++ 4.6 regression, c++0x, weird mismatch for arguments with forwarded declaration when attributes are involved

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45642

Jason Merrill jason at gcc dot gnu.org changed:

   What|Removed |Added

 CC||jason at gcc dot gnu.org

--- Comment #5 from Jason Merrill jason at gcc dot gnu.org 2010-10-04 
18:05:18 UTC ---
It shouldn't be necessary to declare the alignment until the point when we're
completing the class.

[Bug c++/45642] g++ 4.6 regression, c++0x, weird mismatch for arguments with forwarded declaration when attributes are involved

[tbptbp at gmail dot com]

--- Comment #1 from tbptbp at gmail dot com  2010-09-10 17:34 ---
Created an attachment (id=21767)
 -- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21767action=view)
large  fugly testcase


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45642

[Bug c++/45642] g++ 4.6 regression, c++0x, weird mismatch for arguments with forwarded declaration when attributes are involved

[pinskia at gcc dot gnu dot org]

--- Comment #2 from pinskia at gcc dot gnu dot org  2010-09-10 17:34 ---
I think you need __attribute((aligned(16))) on the original forward declared
class too.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45642

[Bug c++/45642] g++ 4.6 regression, c++0x, weird mismatch for arguments with forwarded declaration when attributes are involved

[pinskia at gcc dot gnu dot org]

--- Comment #3 from pinskia at gcc dot gnu dot org  2010-09-10 17:35 ---
This seems related to PR 45112.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45642

[Bug c++/45642] g++ 4.6 regression, c++0x, weird mismatch for arguments with forwarded declaration when attributes are involved

[tbptbp at gmail dot com]

--- Comment #4 from tbptbp at gmail dot com  2010-09-10 18:00 ---
(In reply to comment #2)
 I think you need __attribute((aligned(16))) on the original forward declared
 class too.
As stated that does, indeed, fix it.
So, ok, let's say previous versions were too permissive, then, the problem is
with the extremely confusing and useless diagnostic: there's no warning with
-Wall -Wextra about the declaration/definition mismatch, and a puzzling error
about an unrelated foo(x, y) not matching foo(x, y).


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45642