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Date: Tue, 17 Feb 2004 11:16:00 -0000
From: "thome at lix dot polytechnique dot fr" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Message-ID: <20040217111611.14173.thome@lix.polytechnique.fr>
Reply-To: gcc-bugzilla@gcc.gnu.org
Subject: [Bug libstdc++/14173] New: cvs20040211: -fpack-struct crashes on hello_world.cpp
X-Bugzilla-Reason: CC
X-SW-Source: 2004-02/txt/msg01698.txt.bz2
List-Id: <gcc-bugs.sourceware.org>

g++ -fpack-struct hello.cpp ices within libstdc++ when compiling:

#include <iostream>
int main()
{
        std::cout << "Hello, world\n";
        return 0;
}

localhost : ~ $ g++ -c -fpack-struct hello.cpp
In file included from
/localdisk/thome/Packages/gcc-3.4-20040211/lib/gcc/i686-pc-linux-gnu/3.4.0/../../../../include/c++/3.4.0/ios:49,
                 from
/localdisk/thome/Packages/gcc-3.4-20040211/lib/gcc/i686-pc-linux-gnu/3.4.0/../../../../include/c++/3.4.0/ostream:45,
                 from
/localdisk/thome/Packages/gcc-3.4-20040211/lib/gcc/i686-pc-linux-gnu/3.4.0/../../../../include/c++/3.4.0/iostream:45,
                 from hello.cpp:1:
/localdisk/thome/Packages/gcc-3.4-20040211/lib/gcc/i686-pc-linux-gnu/3.4.0/../../../../include/c++/3.4.0/bits/ios_base.h:
In member function `std::_Ios_Fmtflags std::ios_base::setf(std::_Ios_Fmtflags)':
/localdisk/thome/Packages/gcc-3.4-20040211/lib/gcc/i686-pc-linux-gnu/3.4.0/../../../../include/c++/3.4.0/bits/ios_base.h:535:
error: cannot bind packed field
`((std::ios_base*)this)->std::ios_base::_M_flags' to `std::_Ios_Fmtflags&'
/localdisk/thome/Packages/gcc-3.4-20040211/lib/gcc/i686-pc-linux-gnu/3.4.0/../../../../include/c++/3.4.0/bits/ios_base.h:
In member function `std::_Ios_Fmtflags std::ios_base::setf(std::_Ios_Fmtflags,
std::_Ios_Fmtflags)':
/localdisk/thome/Packages/gcc-3.4-20040211/lib/gcc/i686-pc-linux-gnu/3.4.0/../../../../include/c++/3.4.0/bits/ios_base.h:552:
error: cannot bind packed field
`((std::ios_base*)this)->std::ios_base::_M_flags' to `std::_Ios_Fmtflags&'
/localdisk/thome/Packages/gcc-3.4-20040211/lib/gcc/i686-pc-linux-gnu/3.4.0/../../../../include/c++/3.4.0/bits/ios_base.h:553:
error: cannot bind packed field
`((std::ios_base*)this)->std::ios_base::_M_flags' to `std::_Ios_Fmtflags&'
/localdisk/thome/Packages/gcc-3.4-20040211/lib/gcc/i686-pc-linux-gnu/3.4.0/../../../../include/c++/3.4.0/bits/ios_base.h:
In member function `void std::ios_base::unsetf(std::_Ios_Fmtflags)':
/localdisk/thome/Packages/gcc-3.4-20040211/lib/gcc/i686-pc-linux-gnu/3.4.0/../../../../include/c++/3.4.0/bits/ios_base.h:564:
error: cannot bind packed field
`((std::ios_base*)this)->std::ios_base::_M_flags' to `std::_Ios_Fmtflags&'
g++: Internal error: Segmentation fault (program cc1plus)
Please submit a full bug report.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

-- 
           Summary: cvs20040211: -fpack-struct crashes on hello_world.cpp
           Product: gcc
           Version: 3.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: libstdc++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: thome at lix dot polytechnique dot fr
                CC: gcc-bugs at gcc dot gnu dot org
 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=14173