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Re: c++/7288: Base and derived class don't agree on base class variables
- From: nathan at gcc dot gnu dot org
- To: gcc-bugs at gcc dot gnu dot org, gcc-prs at gcc dot gnu dot org, jolley at fltsim dot stl dot mo dot boeing dot com, nobody at gcc dot gnu dot org
- Date: 12 Jul 2002 19:55:22 -0000
- Subject: Re: c++/7288: Base and derived class don't agree on base class variables
- Reply-to: nathan at gcc dot gnu dot org, gcc-bugs at gcc dot gnu dot org, gcc-prs at gcc dot gnu dot org, jolley at fltsim dot stl dot mo dot boeing dot com, nobody at gcc dot gnu dot org, gcc-gnats at gcc dot gnu dot org
Synopsis: Base and derived class don't agree on base class variables
State-Changed-From-To: open->closed
State-Changed-By: nathan
State-Changed-When: Fri Jul 12 12:55:21 2002
State-Changed-Why:
not a bug. You are assuming that the shm_object base class
lives at the start of the derived object. In general,
that is untrue. In particular it is untrue in the 3.0 ABI
for the non-polymorphic bases of a polymorphic class.
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=7288