related to new operator realfree ()

[Vinu]

I have one problem related to new operator, when the following line is
execute then Segmentation fault occurs.  std::wstring
lastConjunction(L"OMIT");

Program received signal SIGSEGV, Segmentation fault 0xff04237c in
realfree () from /usr/lib/libc.so.1

(gdb) backtrace
#0  0xff04237c in realfree () from /usr/lib/libc.so.1
#1  0xff042cb8 in cleanfree () from /usr/lib/libc.so.1
#2  0xff041dec in _malloc_unlocked () from /usr/lib/libc.so.1
#3  0xff041ce0 in malloc () from /usr/lib/libc.so.1
#4  0xff1bb708 in operator new (sz=32) at
/stf/users/ann/gcc-3.4.2/libstdc
#5  0xff1b4b58 in std::basic_string<wchar_t, std::char_traits<wchar_t>,
std::all
    __capacity=4, __old_capacity=0, __alloc=@0xffbef8f8) at
new_allocator.h:81
#6  0xff1b6cf8 in std::basic_string<wchar_t, std::char_traits<wchar_t>,
std::all
*> (__beg=0xff2ff120, __end=0xff2ff130, __a=@0xffbef8f8) at
basic_string.tcc:147
#7  0xff1b6dc8 in basic_string (this=0xffbef908, __s=0xff2ff120,
__a=@0xffbef8f8
#8  0xff2c0bf4 in Ete::RemoImp::Search (this=0x21fb8,) at
Remo_aw.cpp:113
#9  0x000112ec in main () at Crog_aw.cpp:103

Thanks,
Vinu