[Bug c++/13774] New: Member variable cleared in virtual multiple inheritance class

[Bug c++/13774] New: Member variable cleared in virtual multiple inheritance class

[stuart at personalrobots dot com]

We have a code example with a complex virtual inheritance hierarchy - it has
worked with previous gcc, 3.0 and above, but after installing Fedora the code
crashes. It appears that a pointer gets cleared for no apparent reason and this
causes the crash. We have managed to reproduce the crash with the short file
that I will attach.


Gcc version:
Reading specs from /usr/lib/gcc-lib/i386-redhat-linux/3.3.2/specs
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man
--infodir=/usr/share/info --enable-shared --enable-threads=posix
--disable-checking --with-system-zlib --enable-__cxa_atexit --host=i386-redhat-linux
Thread model: posix
gcc version 3.3.2 20031022 (Red Hat Linux 3.3.2-1)

Compile line is:
mini: mini.cc
        g++ -o mini mini.cc -lstdc++

System is Fedora core 1:
Linux aethon.com 2.4.22-1.2115.nptl #1 Wed Oct 29 15:42:51 EST 2003 i686 i686
i386 GNU/Linux

-- 
           Summary: Member variable cleared in virtual multiple inheritance
                    class
           Product: gcc
           Version: 3.3.2
            Status: UNCONFIRMED
          Severity: critical
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: stuart at personalrobots dot com
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13774

[Bug c++/13774] Member variable cleared in virtual multiple inheritance class

[stuart at personalrobots dot com]

------- Additional Comments From stuart at personalrobots dot com  2004-01-20 18:05 -------
Created an attachment (id=5537)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=5537&action=view)
Source file to recreate the bug


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13774

[Bug c++/13774] Member variable cleared in virtual multiple inheritance class

[bangerth at dealii dot org]

------- Additional Comments From bangerth at dealii dot org  2004-01-20 18:52 -------
This works for me with 3.2.3, 3.3.3-pre, and 3.4 of last week. Maybe 
someone with a debian box can verify. 
 
W. 

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13774

[Bug c++/13774] Member variable cleared in virtual multiple inheritance class

[dhazeghi at yahoo dot com]

------- Additional Comments From dhazeghi at yahoo dot com  2004-01-20 19:01 -------
Confirmed bug with stock 3.3.2 build. Must've been fixed since on branch and mainline.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|---                         |3.3.3


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13774