Re: c++/10509: Problems w/ casting to base classes of classes with multiple inheritance

Re: c++/10509: Problems w/ casting to base classes of classes with multiple inheritance

[bangerth]

Synopsis: Problems w/ casting to base classes of classes with multiple inheritance

State-Changed-From-To: open->closed
State-Changed-By: bangerth
State-Changed-When: Mon Apr 28 14:13:27 2003
State-Changed-Why:
    Not a bug. You can't cast between parallel classes using
    C-style casts. Use
        C *c=dynamic_cast<C*>(a);
    instead and it works as you expect it to do.
    
    W.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=10509

c++/10509: Problems w/ casting to base classes of classes with multiple inheritance

[bero]

>Number:         10509
>Category:       c++
>Synopsis:       Problems w/ casting to base classes of classes with multiple inheritance
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Apr 26 19:16:01 UTC 2003
>Closed-Date:
>Last-Modified:
>Originator:     bero@arklinux.org
>Release:        gcc-3_3-branch as of 2003/04/26
>Organization:
>Environment:
Linux 2.4.21rc1, glibc 2.3.2
>Description:
The attached code outputs "bbb" instead of the expected "bbc". (c->foo() should return "c")
>How-To-Repeat:
Compile and run the attached code
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:
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