[Bug libstdc++/11312] New: GCC (g++) does not support std::wstring or other wchar_t based types

["branko at neobee dot net" <gcc-bugzilla at gcc dot gnu dot org>]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11312

           Summary: GCC (g++) does not support std::wstring or other wchar_t
                    based types
           Product: gcc
           Version: 3.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P1
         Component: libstdc++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: branko at neobee dot net
                CC: gcc-bugs at gcc dot gnu dot org

PLATFORM

Hardware: Sun Ultra 10 (UltraSPARC-IIi)
OS: Solaris 8
GCC: 3.3

bash-2.03# g++ -v
Reading specs from /opt/gcc-3.3/lib/gcc-lib/sparc-sun-solaris2.8/3.3/specs
Configured with: ../gcc-3.3/configure --prefix=/opt/gcc-3.3
Thread model: posix
gcc version 3.3



DESCRIPTION

There seems to be a lack of support for std::wstring in C++ component of GNU 
Compiler Collection. I am new to GCC, but I suppose this is problem with 
standard library that comes with GCC.



STEPS TO REPRODUCE

An attempt to compile a trivial program:

#include <string>
int main() {
    std::wstring s;
}

gives a compile error:

bash-2.03# g++ main.cpp
main.cpp: In function `int main()':
main.cpp:4: error: `wstring' undeclared in namespace `std'
main.cpp:4: error: parse error before `;' token

Also tried on GCC 3.3 / Cygwin and MinGW 3.2, with similar results. GCC/Cygwin 
gives identical compilation errors, while MinGW fails to link:

D:\wstring_bug>g++ -v
Reading specs from E:/MinGW/bin/../lib/gcc-lib/mingw32/3.2/specsConfigured 
with: ../gcc/configure --with-gcc --with-gnu-ld --with-gnu-as --host=mingw32 --
target=mingw32 --prefix=/mingw --enable-threads --disable-nls --enable-
languages=f77,c++,objc,ada --disable-win32-registry --disable-shared
Thread model: win32
gcc version 3.2 (mingw special 20020817-1)

D:\wstring_bug>g++ main.cpp
C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/cckhbaaa.o(.text+0x26):main.cpp: undefined 
reference to `std::basic_string<wchar_t, std::char_traits<wchar_t>, 
std::allocator<wchar_t> >::basic_string()'
C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp/cckhbaaa.o(.text+0x35):main.cpp: undefined 
reference to `std::basic_string<wchar_t, std::char_traits<wchar_t>, 
std::allocator<wchar_t> >::~basic_string()'



NOTE

Internet search revealed numerous occurrences of the same problem on many 
different platforms.