gdb/831: GDB doesn't know about using declarations

[carlton at math dot stanford dot edu]

>Number:         831
>Category:       gdb
>Synopsis:       GDB doesn't know about using declarations
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Nov 15 15:18:00 PST 2002
>Closed-Date:
>Last-Modified:
>Originator:     carlton@math.stanford.edu
>Release:        GNU gdb 2002-11-15-cvs
>Organization:
>Environment:
any
>Description:
GDB doesn't know about using declarations in C++.
(Using declarations are where you import names from
a namespace individually, as opposed to importing the
whole lot at once: the latter is a using directive.)
>How-To-Repeat:
Compile this file:

namespace A {
  int x = 1;
  int y = 2;
}

using A::x;

int main()
{
  x;
  //y;
  A::y;

  return 0;
}

Run GDB on it, and try to print out x.

(gdb) b main
Breakpoint 1 at 0x80484a0: file using-decl.cc, line 14.
(gdb) run
Starting program: /cartan/carlton/sync/gdb-backup/namespace/prs/using-decl 

Breakpoint 1, main () at using-decl.cc:14
14	  return 0;
(gdb) p x
No symbol "x" in current context.
>Fix:
A good first step would be for GCC to generate the relevant
debugging info.
>Release-Note:
>Audit-Trail:
>Unformatted: