The attached codesnippet (test.cc) will segfault when using the nl_BE locale.
Although i can't confirm it i have heard it migth also fail with some other
locales.
------------------------------------
$ g++ -v -save-temps test.cc
Reading specs from /usr/lib/gcc/i686-pc-linux-gnu/3.4.4/specs
Configured with: /var/tmp/portage/gcc-3.4.4-r1/work/gcc-3.4.4/configure
--prefix=/usr --bindir=/usr/i686-pc-linux-gnu/gcc-bin/3.4.4
--includedir=/usr/lib/gcc/i686-pc-linux-gnu/3.4.4/include
--datadir=/usr/share/gcc-data/i686-pc-linux-gnu/3.4.4
--mandir=/usr/share/gcc-data/i686-pc-linux-gnu/3.4.4/man
--infodir=/usr/share/gcc-data/i686-pc-linux-gnu/3.4.4/info
--with-gxx-include-dir=/usr/lib/gcc/i686-pc-linux-gnu/3.4.4/include/g++-v3
--host=i686-pc-linux-gnu --build=i686-pc-linux-gnu --disable-altivec
--enable-nls --without-included-gettext --with-system-zlib --disable-checking
--disable-werror --disable-libunwind-exceptions --disable-multilib
--disable-libgcj --enable-languages=c,c++ --enable-shared --enable-threads=posix
--enable-__cxa_atexit --enable-clocale=gnu
Thread model: posix
gcc version 3.4.4 (Gentoo 3.4.4-r1, ssp-3.4.4-1.0, pie-8.7.8)
/usr/libexec/gcc/i686-pc-linux-gnu/3.4.4/cc1plus -E -quiet -v -D_GNU_SOURCE
test.cc -mtune=pentiumpro -o test.ii
ignoring nonexistent directory "/usr/local/include"
ignoring nonexistent directory
"/usr/lib/gcc/i686-pc-linux-gnu/3.4.4/../../../../i686-pc-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
/usr/lib/gcc/i686-pc-linux-gnu/3.4.4/include/g++-v3
/usr/lib/gcc/i686-pc-linux-gnu/3.4.4/include/g++-v3/i686-pc-linux-gnu
/usr/lib/gcc/i686-pc-linux-gnu/3.4.4/include/g++-v3/backward
/usr/lib/gcc/i686-pc-linux-gnu/3.4.4/include
/usr/include
End of search list.
/usr/libexec/gcc/i686-pc-linux-gnu/3.4.4/cc1plus -fpreprocessed test.ii -quiet
-dumpbase test.cc -mtune=pentiumpro -auxbase test -version -o test.s
GNU C++ version 3.4.4 (Gentoo 3.4.4-r1, ssp-3.4.4-1.0, pie-8.7.8)
(i686-pc-linux-gnu)
compiled by GNU C version 3.4.3-20050110 (Gentoo Linux
3.4.3.20050110-r2, ssp-3.4.3.20050110-0, pie-8.7.7).
GGC heuristics: --param ggc-min-expand=90 --param ggc-min-heapsize=113194
/usr/lib/gcc/i686-pc-linux-gnu/3.4.4/../../../../i686-pc-linux-gnu/bin/as -V
-Qy -o test.o test.s
GNU assembler version 2.15.92.0.2 (i686-pc-linux-gnu) using BFD version
2.15.92.0.2 20040927
/usr/libexec/gcc/i686-pc-linux-gnu/3.4.4/collect2 --eh-frame-hdr -m elf_i386
-dynamic-linker /lib/ld-linux.so.2
/usr/lib/gcc/i686-pc-linux-gnu/3.4.4/../../../crt1.o
/usr/lib/gcc/i686-pc-linux-gnu/3.4.4/../../../crti.o
/usr/lib/gcc/i686-pc-linux-gnu/3.4.4/crtbegin.o
-L/usr/lib/gcc/i686-pc-linux-gnu/3.4.4 -L/usr/lib/gcc/i686-pc-linux-gnu/3.4.4
-L/usr/lib/gcc/i686-pc-linux-gnu/3.4.4/../../../../i686-pc-linux-gnu/lib
-L/usr/lib/gcc/i686-pc-linux-gnu/3.4.4/../../.. test.o -lstdc++ -lm -lgcc_s
-lgcc -lc -lgcc_s -lgcc /usr/lib/gcc/i686-pc-linux-gnu/3.4.4/crtend.o
/usr/lib/gcc/i686-pc-linux-gnu/3.4.4/../../../crtn.o
---------------------------------------------------------------------------
--------------------------------
$ LC_ALL=C ./a.out
$
$ LC_ALL=nl_BE ./a.out
Segmentation fault
--------------------------------------
--
Summary: using stringstreams causes crashes with some locales
Product: gcc
Version: 3.4.4
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: libstdc++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: plors at hakvoort dot be
CC: gcc-bugs at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23953
