[Bug c++/25858] New: [4.0/4.1/4.2 regression] ICE on forgotten ":" in definition of derived class

[Bug c++/25858] New: [4.0/4.1/4.2 regression] ICE on forgotten ":" in definition of derived class

[reichelt at gcc dot gnu dot org]

The following code snippet crashes the C++ frontend:

===============================
namespace N
{
  template<int> struct A {};
}

struct B N::A<0> {};
===============================

bug.cc:6: error: invalid use of constructor as a template
bug.cc:6: internal compiler error: Segmentation fault
Please submit a full bug report, [etc.]

This is a recent regression on the 4.0 branch, 4.1 branch and mainline.

GCC 4.0.2 was not affected. We got the error message:
bug.cc:6: error: invalid function declaration

With GCC 3.4.5 the error message was:
bug.cc:6: error: `A<0>' specified as declarator-id
bug.cc:6: error: invalid function declaration


-- 
           Summary: [4.0/4.1/4.2 regression] ICE on forgotten ":" in
                    definition of derived class
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Keywords: ice-on-invalid-code, error-recovery, monitored
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: reichelt at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25858

[Bug c++/25858] [4.0/4.1/4.2 regression] ICE on forgotten ":" in definition of derived class

[pinskia at gcc dot gnu dot org]

------- Comment #1 from pinskia at gcc dot gnu dot org  2006-01-19 15:48 -------
Confirmed, it worked on 20051217.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pinskia at gcc dot gnu dot
                   |                            |org
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2006-01-19 15:48:09
               date|                            |
   Target Milestone|---                         |4.0.3


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25858

[Bug c++/25858] [4.0/4.1/4.2 regression] ICE on forgotten ":" in definition of derived class

[mmitchel at gcc dot gnu dot org]

-- 

mmitchel at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |mark at codesourcery dot com
                   |dot org                     |
             Status|NEW                         |ASSIGNED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25858

[Bug c++/25858] [4.0/4.1/4.2 regression] ICE on forgotten ":" in definition of derived class

[mmitchel at gcc dot gnu dot org]

------- Comment #2 from mmitchel at gcc dot gnu dot org  2006-01-22 00:41 -------
Subject: Bug 25858

Author: mmitchel
Date: Sun Jan 22 00:40:56 2006
New Revision: 110082

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=110082
Log:
        PR c++/25895
        * class.c (build_base_path): Generate a NOP_EXPR instead of a
        COMPONENT_REF if the base and derived classes are at the same
        address.
        PR c++/25856
        * decl.c (begin_destructor_body): Robustify.
        PR c++/25858 
        * parser.c (cp_parser_direct_declarator): Robustify.

        PR c++/25895
        * g++.dg/inherit/conv2.C: New test.
        PR c++/25856
        * g++.dg/parse/dtor7.C: New test.
        PR c++/25858
        * g++.dg/template/crash44.C: New test.

Added:
    branches/gcc-4_0-branch/gcc/testsuite/g++.dg/inherit/conv2.C
    branches/gcc-4_0-branch/gcc/testsuite/g++.dg/parse/dtor7.C
    branches/gcc-4_0-branch/gcc/testsuite/g++.dg/template/crash44.C
Modified:
    branches/gcc-4_0-branch/gcc/cp/ChangeLog
    branches/gcc-4_0-branch/gcc/cp/class.c
    branches/gcc-4_0-branch/gcc/cp/decl.c
    branches/gcc-4_0-branch/gcc/cp/parser.c
    branches/gcc-4_0-branch/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25858

[Bug c++/25858] [4.0/4.1/4.2 regression] ICE on forgotten ":" in definition of derived class

[mmitchel at gcc dot gnu dot org]

------- Comment #4 from mmitchel at gcc dot gnu dot org  2006-01-22 00:42 -------
Subject: Bug 25858

Author: mmitchel
Date: Sun Jan 22 00:42:40 2006
New Revision: 110084

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=110084
Log:
        PR c++/25895
        * class.c (build_base_path): Generate a NOP_EXPR instead of a
        COMPONENT_REF if the base and derived classes are at the same
        address.
        PR c++/25856
        * decl.c (begin_destructor_body): Robustify.
        PR c++/25858 
        * parser.c (cp_parser_direct_declarator): Robustify.

        PR c++/25895
        * g++.dg/inherit/conv2.C: New test.
        PR c++/25856
        * g++.dg/parse/dtor7.C: New test.
        PR c++/25858
        * g++.dg/template/crash44.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/inherit/conv2.C
    trunk/gcc/testsuite/g++.dg/parse/dtor7.C
    trunk/gcc/testsuite/g++.dg/template/crash44.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/class.c
    trunk/gcc/cp/decl.c
    trunk/gcc/cp/parser.c
    trunk/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25858

[Bug c++/25858] [4.0/4.1/4.2 regression] ICE on forgotten ":" in definition of derived class

[mmitchel at gcc dot gnu dot org]

------- Comment #3 from mmitchel at gcc dot gnu dot org  2006-01-22 00:42 -------
Subject: Bug 25858

Author: mmitchel
Date: Sun Jan 22 00:41:58 2006
New Revision: 110083

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=110083
Log:
        PR c++/25895
        * class.c (build_base_path): Generate a NOP_EXPR instead of a
        COMPONENT_REF if the base and derived classes are at the same
        address.
        PR c++/25856
        * decl.c (begin_destructor_body): Robustify.
        PR c++/25858 
        * parser.c (cp_parser_direct_declarator): Robustify.

        PR c++/25895
        * g++.dg/inherit/conv2.C: New test.
        PR c++/25856
        * g++.dg/parse/dtor7.C: New test.
        PR c++/25858
        * g++.dg/template/crash44.C: New test.

Added:
    branches/gcc-4_1-branch/gcc/testsuite/g++.dg/inherit/conv2.C
    branches/gcc-4_1-branch/gcc/testsuite/g++.dg/parse/dtor7.C
    branches/gcc-4_1-branch/gcc/testsuite/g++.dg/template/crash44.C
Modified:
    branches/gcc-4_1-branch/gcc/cp/ChangeLog
    branches/gcc-4_1-branch/gcc/cp/class.c
    branches/gcc-4_1-branch/gcc/cp/decl.c
    branches/gcc-4_1-branch/gcc/cp/parser.c
    branches/gcc-4_1-branch/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25858

[Bug c++/25858] [4.0/4.1/4.2 regression] ICE on forgotten ":" in definition of derived class

[mmitchel at gcc dot gnu dot org]

------- Comment #5 from mmitchel at gcc dot gnu dot org  2006-01-22 00:51 -------
Fixed in 4.0.3.


-- 

mmitchel at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25858