using __STL_NEW_IO_NAMESPACE::basic_istream;
using __STL_NEW_IO_NAMESPACE::basic_iostream;

using __STL_NEW_IO_NAMESPACE::istream;
using __STL_NEW_IO_NAMESPACE::iostream;

# if !defined (__STL_NO_NATIVE_WIDE_STREAMS)
using __STL_NEW_IO_NAMESPACE::wistream;
using __STL_NEW_IO_NAMESPACE::wiostream;
# endif

#if !(defined (__STL_MSVC) && (__STL_MSVC < 1200))
using __STL_NEW_IO_NAMESPACE::ws;
#endif