[Bug c++/17233] New: Segfault on legitimate code

[Bug c++/17233] New: Segfault on legitimate code

[gkajmowi at tbaytel dot net]

The attached code causes the compiler to segfault.

The code is from an attempt to independently implement the C++ standard library.

configured with: /var/tmp/portage/gcc-3.3.4-r1/work/gcc-3.3.4/configure --
prefix=/usr --bindir=/usr/i686-pc-linux-gnu/gcc-bin/3.3 --include
dir=/usr/lib/gcc-lib/i686-pc-linux-gnu/3.3.4/include --datadir=/usr/share/gcc-
data/i686-pc-linux-gnu/3.3 --mandir=/usr/share/gcc-data/i686-
pc-linux-gnu/3.3/man --infodir=/usr/share/gcc-data/i686-pc-linux-gnu/3.3/info --
enable-shared --host=i686-pc-linux-gnu --target=i686-pc-lin
ux-gnu --with-system-zlib --enable-languages=c,c++ --enable-threads=posix --
enable-long-long --disable-checking --disable-libunwind-excepti
ons --enable-cstdio=stdio --enable-version-specific-runtime-libs --with-gxx-
include-dir=/usr/lib/gcc-lib/i686-pc-linux-gnu/3.3.4/include/g+
+-v3 --with-local-prefix=/usr/local --enable-shared --enable-nls --without-
included-gettext --disable-multilib --enable-__cxa_atexit --enab
le-clocale=generic

-- 
           Summary: Segfault on legitimate code
           Product: gcc
           Version: 3.3.4
            Status: UNCONFIRMED
          Severity: critical
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: gkajmowi at tbaytel dot net
                CC: gcc-bugs at gcc dot gnu dot org,gkajmowi at tbaytel dot
                    net
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17233

[Bug c++/17233] Segfault on legitimate code

[gkajmowi at tbaytel dot net]

------- Additional Comments From gkajmowi at tbaytel dot net  2004-08-29 23:24 -------
Created an attachment (id=7002)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=7002&action=view)
Autogenerated preprocessed source causing segfault


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17233

[Bug c++/17233] Segfault on illegitimate code

[gkajmowi at tbaytel dot net]

------- Additional Comments From gkajmowi at tbaytel dot net  2004-08-29 23:38 -------
Found problem - code contained a template definition without a closing angle 
bracket.  Adding angle bracket causes worning about duplicate definition of 
default parameters for template (good).

Thus code was invalid, but should not have caused a segfault.  I've decreased 
priority to deal with this issue accordingly.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|critical                    |normal
           Priority|P2                          |P1
            Summary|Segfault on legitimate code |Segfault on illegitimate
                   |                            |code


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17233

[Bug c++/17233] Segfault on illegitimate code

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-08-29 23:44 -------
Fixed for 3.4.0, before 3.3.3, we got an ICE after error. but since this is an ICE on invalid code, I am 
closing as fixed.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|---                         |3.4.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17233

[Bug c++/17233] Segfault on missing angle bracket

[reichelt at gcc dot gnu dot org]

------- Additional Comments From reichelt at gcc dot gnu dot org  2004-08-30 20:06 -------
Just for the record, here's a reduced testcase:

===================================
template <typename=int> struct A;
template <typename=int  struct A;
===================================

This triggers a segfault without any prior error message.
Nevertheless, it's not a regression, so we keep it as fixed for 3.4.0.


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |ice-on-invalid-code
            Summary|Segfault on illegitimate    |Segfault on missing angle
                   |code                        |bracket


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17233