libstdc++: I/O (original) (raw)

Classes
class std::basic_filebuf< _CharT, _Traits >
class std::basic_fstream< _CharT, _Traits >
class std::basic_ifstream< _CharT, _Traits >
class std::basic_ios< _CharT, _Traits >
class std::basic_iostream< _CharT, _Traits >
class std::basic_istream< _CharT, _Traits >
class std::basic_istringstream< _CharT, _Traits, _Alloc >
class std::basic_ofstream< _CharT, _Traits >
class std::basic_ostream< _CharT, _Traits >
class std::basic_ostringstream< _CharT, _Traits, _Alloc >
class std::basic_streambuf< _CharT, _Traits >
class std::basic_stringbuf< _CharT, _Traits, _Alloc >
class std::basic_stringstream< _CharT, _Traits, _Alloc >
class std::ios_base
class std::istreambuf_iterator< _CharT, _Traits >
class std::ostreambuf_iterator< _CharT, _Traits >
class __gnu_cxx::stdio_filebuf< _CharT, _Traits >
class __gnu_cxx::stdio_sync_filebuf< _CharT, _Traits >
Typedefs
typedef basic_filebuf< char > std::filebuf
typedef basic_fstream< char > std::fstream
typedef basic_ifstream< char > std::ifstream
typedef basic_ios< char > std::ios
typedef basic_iostream< char > std::iostream
typedef basic_istream< char > std::istream
typedef basic_istringstream< char > std::istringstream
typedef basic_ofstream< char > std::ofstream
typedef basic_ostream< char > std::ostream
typedef basic_ostringstream< char > std::ostringstream
typedef basic_streambuf< char > std::streambuf
typedef basic_stringbuf< char > std::stringbuf
typedef basic_stringstream< char > std::stringstream
typedef basic_filebuf< wchar_t > std::wfilebuf
typedef basic_fstream< wchar_t > std::wfstream
typedef basic_ifstream< wchar_t > std::wifstream
typedef basic_ios< wchar_t > std::wios
typedef basic_iostream< wchar_t > std::wiostream
typedef basic_istream< wchar_t > std::wistream
typedef basic_istringstream< wchar_t > std::wistringstream
typedef basic_ofstream< wchar_t > std::wofstream
typedef basic_ostream< wchar_t > std::wostream
typedef basic_ostringstream< wchar_t > std::wostringstream
typedef basic_streambuf< wchar_t > std::wstreambuf
typedef basic_stringbuf< wchar_t > std::wstringbuf
typedef basic_stringstream< wchar_t > std::wstringstream

Nearly all of the I/O classes are parameterized on the type of characters they read and write. (The major exception is ios_base at the top of the hierarchy.) This is a change from pre-Standard streams, which were not templates.

For ease of use and compatibility, all of the basic_* I/O-related classes are given typedef names for both of the builtin character widths (wide and narrow). The typedefs are the same as the pre-Standard names, for example:

typedef basic_ifstream ifstream;

basic_ifstream< char > ifstream

Class for char input file streams.

Because properly forward-declaring these classes can be difficult, you should not do it yourself. Instead, include the header, which contains only declarations of all the I/O classes as well as the typedefs. Trying to forward-declare the typedefs themselves (e.g., class ostream;) is not valid ISO C++.

For more specific declarations, see https://gcc.gnu.org/onlinedocs/libstdc++/manual/io.html#std.io.objects

◆ filebuf

Class for char file buffers.

Definition at line 161 of file iosfwd.

◆ fstream

Class for char mixed input and output file streams.

Definition at line 170 of file iosfwd.

◆ ifstream

Class for char input file streams.

Definition at line 164 of file iosfwd.

◆ ios

Base class for char streams.

Definition at line 134 of file iosfwd.

◆ iostream

Base class for char mixed input and output streams.

Definition at line 146 of file iosfwd.

◆ istream

Base class for char input streams.

Definition at line 140 of file iosfwd.

◆ istringstream

Class for char input memory streams.

Definition at line 152 of file iosfwd.

◆ ofstream

Class for char output file streams.

Definition at line 167 of file iosfwd.

◆ ostream

Base class for char output streams.

Definition at line 143 of file iosfwd.

◆ ostringstream

Class for char output memory streams.

Definition at line 155 of file iosfwd.

◆ streambuf

Base class for char buffers.

Definition at line 137 of file iosfwd.

◆ stringbuf

Class for char memory buffers.

Definition at line 149 of file iosfwd.

◆ stringstream

Class for char mixed input and output memory streams.

Definition at line 158 of file iosfwd.

◆ wfilebuf

Class for wchar_t file buffers.

Definition at line 201 of file iosfwd.

◆ wfstream

Class for wchar_t mixed input and output file streams.

Definition at line 210 of file iosfwd.

◆ wifstream

Class for wchar_t input file streams.

Definition at line 204 of file iosfwd.

◆ wios

Base class for wchar_t streams.

Definition at line 174 of file iosfwd.

◆ wiostream

Base class for wchar_t mixed input and output streams.

Definition at line 186 of file iosfwd.

◆ wistream

Base class for wchar_t input streams.

Definition at line 180 of file iosfwd.

◆ wistringstream

Class for wchar_t input memory streams.

Definition at line 192 of file iosfwd.

◆ wofstream

Class for wchar_t output file streams.

Definition at line 207 of file iosfwd.

◆ wostream

Base class for wchar_t output streams.

Definition at line 183 of file iosfwd.

◆ wostringstream

Class for wchar_t output memory streams.

Definition at line 195 of file iosfwd.

◆ wstreambuf

Base class for wchar_t buffers.

Definition at line 177 of file iosfwd.

◆ wstringbuf

Class for wchar_t memory buffers.

Definition at line 189 of file iosfwd.

◆ wstringstream

Class for wchar_t mixed input and output memory streams.

Definition at line 198 of file iosfwd.