Re: c++/1146: gdb cannot set breakpoints within subclasses of classes

[Daniel Jacobowitz <drow at mvista dot com>]

The following reply was made to PR c++/1146; it has been noted by GNATS.

From: Daniel Jacobowitz <drow at mvista dot com>
To: thor at math dot tu-berlin dot de
Cc: gdb-gnats at sources dot redhat dot com
Subject: Re: c++/1146: gdb cannot set breakpoints within subclasses of classes
Date: Tue, 18 Mar 2003 12:05:55 -0500

 On Tue, Mar 18, 2003 at 01:12:15PM -0000, thor at math dot tu-berlin dot de wrote:
 > 
 > >Number:         1146
 > >Category:       c++
 > >Synopsis:       gdb cannot set breakpoints within subclasses of classes
 > >Confidential:   no
 > >Severity:       serious
 > >Priority:       medium
 > >Responsible:    unassigned
 > >State:          open
 > >Class:          sw-bug
 > >Submitter-Id:   net
 > >Arrival-Date:   Tue Mar 18 13:18:01 UTC 2003
 > >Closed-Date:
 > >Last-Modified:
 > >Originator:     Thomas Richter
 > >Release:        GNU gdb 5.3
 > >Organization:
 > >Environment:
 > Linux cleopatra 2.4.18-4GB #1 Wed Mar 27 13:57:05 UTC 2002 i686 unknown
 > >Description:
 > If a class contains the definition and declaration of a sub-class, then gdb cannot set breakpoints within member
 > functions of this subclass.
 > >How-To-Repeat:
 > Save the following file as "foo.cpp":
 > /* snip */
 > #include <cstdio>
 > 
 > class A {
 > public:
 >   class B {
 >   public:
 >     void hello(void);
 >   } b;
 > };
 > 
 > void A::B::hello(void)
 > {
 >   printf("Hello.\n");
 > }
 
 Yes, this is an unfortunate known problem.  I'm waiting for more of the
 namespace support patches to be committed before I address nested
 classes again.
 
 
 > Hence, gdb tries erraneously to resolve A::B as a member, and not as a subclass.
 > >Fix:
 > not known
 
 You can breakpoint on 'A::B::hello(void)' as a workaround.  Try that?
 
 -- 
 Daniel Jacobowitz
 MontaVista Software                         Debian GNU/Linux Developer