This code causes SIGFAULT on Ubuntu 8.10:

#include <locale>
using namespace std;

int main()
{
    locale loc(locale("C"), "en_US", locale::monetary);
    use_facet<moneypunct<char> >(loc).grouping();
    return 0;
}

Tested both with native gcc and one builded from svn.
According to gdb, sigfault is caused by strlen while converting c-string to
c++-string when returns from moneypunct<char>::do_grouping().

and...@andrew-desktop:~/work/test$ gcc --version
gcc (Ubuntu 4.3.2-1ubuntu12) 4.3.2
Copyright (C) 2008 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

and...@andrew-desktop:~/work/test$ /home/andrew/gcc/bin/gcc --version
gcc (GCC) 4.5.0 20090709 (experimental)
Copyright (C) 2009 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

and...@andrew-desktop:~/work/test$ g++ test.cpp && ./a.out
Segmentation fault


-- 
           Summary: locale(const locale&, const char*, locale::category) can
                    create broken locale
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: tsyvarev at ispras dot ru


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40712

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