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C-/C++-Quelltext

//! struct-template for charset independent string operation

/*! The basic_char_types-structure template is used for charset independent source code */
template <typename T> 
struct basic_char_types 
{
    typedef T                                       character;      //!< charset char-type

    typedef std::basic_string<T>                    string;         //!< char-type specification of std::basic_string

    typedef std::basic_ostream<T, std::char_traits<T> > ostream;    //!< char-type specification of std::basic_ostream

    typedef std::basic_istream<T>                   istream;        //!< char-type specification of std::basic_istream

    typedef std::basic_ofstream<T>                  ofstream;       //!< char-type specification of std::basic_ofstream

    typedef std::basic_ifstream<T>                  ifstream;       //!< char-type specification of std::basic_ifstream

    typedef std::basic_ostringstream<T>             ostringstream;  //!< char-type specification of std::basic_ostringstream

    typedef std::basic_istringstream<T>             istringstream;  //!< char-type specification of std::basic_istringstream

    typedef std::basic_stringstream<T>              stringstream;   //!< char-type specification of std::basic_stringstream

    typedef std::vector< std::basic_string<T> >     string_array;   //!< dynamic array of std::basic_string's specificated of char-type

};
#if _UNICODE
    typedef basic_char_types<wchar_t>   char_types;     //!< typedef of basic_char_types depended of selected/defined charset

    #define cout std::wcout
#else // !_UNICODE

    typedef basic_char_types<char>      char_types;     //!< typedef of basic_char_types depended of selected/defined charset

    #define cout std::cout
#endif // !_UNICODE

};

C-/C++-Quelltext

char_types::ifstream file_stream("config.dat");
if (!file_stream) { std::cerr << "FEHLER: Datei konnte nicht geöffnet werden!" << std::endl; return 1; }
char_types::string line;
while (std::getline(file_stream, line)) { cout << line << std::endl; }