From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-396500-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 14583 invoked by alias); 13 Jul 2012 18:38:48 -0000
Received: (qmail 14571 invoked by uid 22791); 13 Jul 2012 18:38:47 -0000
X-SWARE-Spam-Status: No, hits=-4.3 required=5.0	tests=ALL_TRUSTED,AWL,BAYES_00,KHOP_THREADED
X-Spam-Check-By: sourceware.org
Received: from localhost (HELO gcc.gnu.org) (127.0.0.1)    by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Fri, 13 Jul 2012 18:38:34 +0000
From: "tromey at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/53477] pretty printer fails with: Python Exception <type 'exceptions.IndexError'> list index out of range
Date: Fri, 13 Jul 2012 18:38:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: libstdc++
X-Bugzilla-Keywords:
X-Bugzilla-Severity: normal
X-Bugzilla-Who: tromey at gcc dot gnu.org
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 3.1.x/3.2.x
X-Bugzilla-Changed-Fields: Target Milestone
Message-ID: <bug-53477-4-WRrTepeE95@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-53477-4@http.gcc.gnu.org/bugzilla/>
References: <bug-53477-4@http.gcc.gnu.org/bugzilla/>
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
Content-Type: text/plain; charset="UTF-8"
MIME-Version: 1.0
Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Id: <gcc-bugs.gcc.gnu.org>
List-Archive: <http://gcc.gnu.org/ml/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-help@gcc.gnu.org>
Sender: gcc-bugs-owner@gcc.gnu.org
X-SW-Source: 2012-07/txt/msg01086.txt.bz2

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53477

Tom Tromey <tromey at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |3.1.x/3.2.x

--- Comment #1 from Tom Tromey <tromey at gcc dot gnu.org> 2012-07-13 18:38:18 UTC ---
(Fixed the component)

I can't reproduce this.
I can print wordMapBitset before it is initialized but
I get a different error:

(gdb) p wordBitsetMap
$4 = std::map with 140737488349518 elementsCannot access memory at address
0x68732f6c61636f7c

... which isn't pretty but is at least vaguely understandable
as "GIGO".

What version of gdb are you using?
Can you do it with stack-printing enabled?
("set python print-stack on" in recent versions, somewhere under
"maint" in older ones.)
This might help.