17 typedef std::basic_ifstream< char, std::char_traits< char > >
IFStream;
18 typedef std::basic_ofstream< char, std::char_traits< char > >
OFStream;
19 typedef std::basic_fstream< char, std::char_traits< char > >
FStream;
20 typedef std::basic_istream< char, std::char_traits< char > >
IStream;
21 typedef std::basic_ostream< char, std::char_traits< char > >
OStream;
22 typedef std::basic_iostream< char, std::char_traits< char > >
IOStream;