/

typedef basic_ios<char>                ios;
typedef basic_ios<wchar_t>            wios;

typedef basic_streambuf<char>     streambuf;
typedef basic_streambuf<wchar_t> wstreambuf;
typedef basic_filebuf<char>         filebuf;
typedef basic_filebuf<wchar_t>     wfilebuf;
typedef basic_stringbuf<char>     stringbuf;
typedef basic_stringbuf<wchar_t> wstringbuf;
typedef basic_syncbuf<char>         syncbuf; // C++20
typedef basic_syncbuf<wchar_t>     wsyncbuf; // C++20
typedef basic_spanbuf<char>         spanbuf; // C++23
typedef basic_spanbuf<wchar_t>     wspanbuf; // C++23

typedef basic_istream<char>         istream;
typedef basic_istream<wchar_t>     wistream;
typedef basic_ostream<char>         ostream;
typedef basic_ostream<wchar_t>     wostream;
typedef basic_iostream<char>       iostream;
typedef basic_iostream<wchar_t>   wiostream;

typedef basic_ifstream<char>       ifstream;
typedef basic_ifstream<wchar_t>   wifstream;
typedef basic_ofstream<char>       ofstream;
typedef basic_ofstream<wchar_t>   wofstream;
typedef basic_fstream<char>         fstream;
typedef basic_fstream<wchar_t>     wfstream;

typedef basic_istringstream<char>     istringstream;
typedef basic_istringstream<wchar_t> wistringstream;
typedef basic_ostringstream<char>     ostringstream;
typedef basic_ostringstream<wchar_t> wostringstream;
typedef basic_stringstream<char>       stringstream;
typedef basic_stringstream<wchar_t>   wstringstream;

typedef basic_osyncstream<char>     osyncstream; // C++20
typedef basic_osyncstream<wchar_t> wosyncstream; // C++20

typedef basic_ispanstream<char>     ispanstream; // C++23
typedef basic_ispanstream<wchar_t> wispanstream; // C++23
typedef basic_ospanstream<char>     ospanstream; // C++23
typedef basic_ospanstream<wchar_t> wospanstream; // C++23
typedef basic_spanstream<char>       spanstream; // C++23
typedef basic_spanstream<wchar_t>   wspanstream; // C++23