A funny use of __attribute__ ((packed)) caused a seg fault.
Code:
====== (see attachment for full preprocessed file)
struct wrap_a {int a;};
struct wrap_b {long b;}; // note: 64bit machine
typedef std::pair<wrap_a __attribute__ ((packed)), wrap_b> my_pair; // crash!
======
Command line:
g++ /tmp/g++bug.cc
======
Output:
/tmp/g++bug.cc: In function int main():
/tmp/g++bug.cc:11: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://bugzilla.redhat.com/bugzilla> for instructions.
Preprocessed source stored into /tmp/ccklpUdO.out file, please attach this to
your bugreport.
--
Summary: Internal compiler error: Segmentation fault, when
incorrectly using __attribute__ ((packed))
Product: gcc
Version: 4.1.2
Status: UNCONFIRMED
Severity: minor
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: vanco dot gccbugzilla at vancomaja dot com
GCC build triplet: Configured with: ../configure --prefix=/usr --
mandir=/usr/share/
GCC host triplet: Using built-in specs
GCC target triplet: x86_64-redhat-linux
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36794
