c++/9829: [3.2/3.3 regression] Missing colon in nested namespace usage causes ICE

c++/9829: [3.2/3.3 regression] Missing colon in nested namespace usage causes ICE

[Andrew.Carson]

>Number:         9829
>Category:       c++
>Synopsis:       [3.2/3.3 regression] Missing colon in nested namespace usage causes ICE
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          ice-on-illegal-code
>Submitter-Id:   net
>Arrival-Date:   Mon Feb 24 12:56:00 UTC 2003
>Closed-Date:
>Last-Modified:
>Originator:     Andrew Carson
>Release:        unknown-1.0
>Organization:
>Environment:
gcc-3.2.3-20030222
gcc-3.3-20030222
>Description:
The following (illegal) code snippet causes an ICE under gcc-3.2.3-20030222 and gcc-3.3-20030222

ice.cxx:
--------------------------------------
namespace a {
    namespace b {
        void foo();
    }
}

void
a::b:foo()
{
}
---------------------------

% g++32 ice.cxx
ice.cxx:8: `a::b' as declarator
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.

% g++33 ice.cxx
ice.cxx:8: internal compiler error: in grokdeclarator, at cp/decl.c:10394
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.

Whereas gcc-3.4-20030222 and gcc-3.0.x 'work'

% g++34 ice.cxx
ice.cxx:8: error: invalid function declaration

% g++30 ice.cxx
ice.cxx:8: `a::b' as declarator (compiler error)
ice.cxx:8: syntax error before `:' token

[ Seems to occur on both an ix86 machine and a Sun Sparc machine... ]
>How-To-Repeat:

>Fix:

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

Re: c++/9829: [3.2/3.3 regression] Missing colon in nested namespace usage causes ICE

[bangerth]

Synopsis: [3.2/3.3 regression] Missing colon in nested namespace usage causes ICE

State-Changed-From-To: open->analyzed
State-Changed-By: bangerth
State-Changed-When: Mon Feb 24 15:33:46 2003
State-Changed-Why:
    Confirmed. A regression in 3.2 and 3.3, but fixed in 3.4

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=9829