[Bug c++/28345] New: static const "class" initialisation causes core dump

[Bug c++/28345] New: static const "class" initialisation causes core dump

[john dot spelis at 3dlabs dot com]

A declaration
   static const Bad     constBad = {
      ...
    }
causes a core dump, fixed by removing the "const" keyword.

Example source file "b.cxx"
============================
#include <stdio.h>

class Base {
public:
};

class Derived : public Base {
public:
   int a, b, c, d;
};

class Bad {
public:
   int Base::*mpField0;
   int Base::*mpField1;
};

class Good {
public:
   int Derived::*mpField0;
   int Derived::*mpField1;
};

int main( int argc, char *argv[] )
{
   static const Good    good = {
         (int (Base::*)) &Derived::b,
         (int (Base::*)) &Derived::c
   };

   printf( "good.mpField0 = %d\n", good.mpField0 );
   printf( "good.mpField1 = %d\n", good.mpField1 );

   static Bad   bad = {
         (int (Base::*)) &Derived::b,
         (int (Base::*)) &Derived::c
   };

   printf( "bad.mpField0 = %d\n", bad.mpField0 );
   printf( "bad.mpField1 = %d\n", bad.mpField1 );

   // This initialisation generates a CORE dump!
   static const Bad     constBad = {
         (int (Base::*)) &Derived::b,
         (int (Base::*)) &Derived::c
   };

   printf( "constBad.mpField0 = %d\n", constBad.mpField0 );
   printf( "constBad.mpField1 = %d\n", constBad.mpField1 );

   return 0;
}


 g++ -v -save-temps -o b b.cxx
===============================
Reading specs from /opt/s2tools/native/lib/gcc/i686-pc-linux-gnu/3.4.1/specs
Configured with: /homes/spelis/dopt/gnu/gcc-3.4.1/configure
--prefix=/opt/s2tools/native
Thread model: posix
gcc version 3.4.1
 /opt/s2tools/native/libexec/gcc/i686-pc-linux-gnu/3.4.1/cc1plus -E -quiet -v
-D_GNU_SOURCE b.cxx -mtune=pentiumpro -o b.ii
ignoring nonexistent directory
"/opt/s2tools/native/lib/gcc/i686-pc-linux-gnu/3.4.1/../../../../i686-pc-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:

/opt/s2tools/native/lib/gcc/i686-pc-linux-gnu/3.4.1/../../../../include/c++/3.4.1

/opt/s2tools/native/lib/gcc/i686-pc-linux-gnu/3.4.1/../../../../include/c++/3.4.1/i686-pc-linux-gnu

/opt/s2tools/native/lib/gcc/i686-pc-linux-gnu/3.4.1/../../../../include/c++/3.4.1/backward
 /usr/local/include
 /opt/s2tools/native/include
 /opt/s2tools/native/lib/gcc/i686-pc-linux-gnu/3.4.1/include
 /usr/include
End of search list.
 /opt/s2tools/native/libexec/gcc/i686-pc-linux-gnu/3.4.1/cc1plus -fpreprocessed
b.ii -quiet -dumpbase b.cxx -mtune=pentiumpro -auxbase b -version -o b.s
GNU C++ version 3.4.1 (i686-pc-linux-gnu)
        compiled by GNU C version 3.2.3 20030502 (Red Hat Linux 3.2.3-49).
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072

/opt/s2tools/native/lib/gcc/i686-pc-linux-gnu/3.4.1/../../../../i686-pc-linux-gnu/bin/as
-V -Qy -o b.o b.s
GNU assembler version 2.16.1 (i686-pc-linux-gnu) using BFD version 2.16.1
 /opt/s2tools/native/libexec/gcc/i686-pc-linux-gnu/3.4.1/collect2
--eh-frame-hdr -m elf_i386 -dynamic-linker /lib/ld-linux.so.2 -o b
/usr/lib/crt1.o /usr/lib/crti.o
/opt/s2tools/native/lib/gcc/i686-pc-linux-gnu/3.4.1/crtbegin.o
-L/opt/s2tools/native/lib/gcc/i686-pc-linux-gnu/3.4.1
-L/opt/s2tools/native/lib/gcc/i686-pc-linux-gnu/3.4.1/../../../../i686-pc-linux-gnu/lib
-L/opt/s2tools/native/lib/gcc/i686-pc-linux-gnu/3.4.1/../../.. b.o -lstdc++ -lm
-lgcc_s -lgcc -lc -lgcc_s -lgcc
/opt/s2tools/native/lib/gcc/i686-pc-linux-gnu/3.4.1/crtend.o /usr/lib/crtn.o


-- 
           Summary: static const "class" initialisation causes core dump
           Product: gcc
           Version: 3.4.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: john dot spelis at 3dlabs dot com
 GCC build triplet: i686-pc-linux
  GCC host triplet: i686-pc-linux
GCC target triplet: i686-pc-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28345

[Bug c++/28345] static const "class" initialisation causes core dump

[rguenth at gcc dot gnu dot org]

------- Comment #1 from rguenth at gcc dot gnu dot org  2006-07-12 08:16 -------
Fixed in 3.4.4.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|---                         |3.4.4


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28345