namespace std {
template <class charT, class traits = char_traits<charT> >
class basic_ifstream : public basic_istream<charT,traits> {
public:
typedef charT char_type;
typedef typename traits::int_type int_type;
typedef typename traits::pos_type pos_type;
typedef typename traits::off_type off_type;
typedef traits traits_type;
basic_ifstream();
explicit basic_ifstream(const char* s,
ios_base::openmode mode = ios_base::in);
explicit basic_ifstream(const string& s,
ios_base::openmode mode = ios_base::in);
basic_ifstream(const basic_ifstream& rhs) = delete;
basic_ifstream(basic_ifstream&& rhs);
basic_ifstream& operator=(const basic_ifstream& rhs) = delete;
basic_ifstream& operator=(basic_ifstream&& rhs);
void swap(basic_ifstream& rhs);
basic_filebuf<charT,traits>* rdbuf() const;
bool is_open() const;
void open(const char* s, ios_base::openmode mode = ios_base::in);
void open(const string& s, ios_base::openmode mode = ios_base::in);
void close();
private:
basic_filebuf<charT,traits> sb; };
template <class charT, class traits>
void swap(basic_ifstream<charT, traits>& x,
basic_ifstream<charT, traits>& y);
}
The class
basic_ifstream<charT, traits>
supports reading from named files.
It uses a
basic_filebuf<charT, traits>
object to control the associated
sequence.
For the sake of exposition, the maintained data is presented here as: