std::basic_iostream
From cppreference.com
Defined in header
<istream>
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template<
class CharT, |
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The class template basic_iostream
provides support for high level input/output operations on streams. The supported operations include sequential reading or writing and formatting. This functionality is implemented over the interface, provided by the basic_streambuf
class. It is accessed through basic_ios
class.
Two specializations for common character types are defined:
Defined in header
<istream> |
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Type | Definition |
iostream
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basic_iostream<char> |
wiostream
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basic_iostream<wchar_t> |
Contents |
[edit] Member types
Member type | Definition |
char_type
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CharT |
traits_type
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Traits |
int_type
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Traits::int_type |
pos_type
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Traits::pos_type |
off_type
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Traits::off_type |
[edit] Member functions
constructs the object (public member function) |
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[virtual]
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destructs the object (virtual public member function) |
[edit] Protected member functions
(C++11)
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move-assigns another basic_iostream (public member function) |
(C++11)
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exchanges the state with another basic_iostream (public member function) |
Inherited from std::basic_istream
Member functions
Formatted input |
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extracts formatted data (public member function of std::basic_istream )
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Unformatted input |
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extracts characters (public member function of std::basic_istream )
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reads the next character without extracting it (public member function of std::basic_istream )
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unextracts a character (public member function of std::basic_istream )
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puts character into input stream (public member function of std::basic_istream )
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extracts characters until the given character is found (public member function of std::basic_istream )
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extracts and discards characters until the given character is found (public member function of std::basic_istream )
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extracts blocks of characters (public member function of std::basic_istream )
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extracts already available blocks of characters (public member function of std::basic_istream )
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returns number of characters extracted by last unformatted input operation (public member function of std::basic_istream )
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Positioning |
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returns the input position indicator (public member function of std::basic_istream )
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sets the input position indicator (public member function of std::basic_istream )
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Miscellaneous |
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synchronizes with the underlying storage device (public member function of std::basic_istream )
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Member classes
implements basic logic for preparation of the stream for input operations (public member class of std::basic_istream )
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Inherited from std::basic_ostream
Member functions
Formatted input |
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inserts formatted data (public member function of std::basic_ostream )
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Unformatted input |
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inserts a character (public member function of std::basic_ostream )
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inserts blocks of characters (public member function of std::basic_ostream )
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Positioning |
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returns the output position indicator (public member function of std::basic_ostream )
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sets the output position indicator (public member function of std::basic_ostream )
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Miscellaneous |
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synchronizes with the underlying storage device (public member function of std::basic_ostream )
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Member classes
implements basic logic for preparation of the stream for output operations (public member class of std::basic_ostream )
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Inherited from std::basic_ios
Member types
Member type | Definition |
char_type
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CharT |
traits_type
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Traits |
int_type
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Traits::int_type |
pos_type
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Traits::pos_type |
off_type
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Traits::off_type |
Member functions
State functions |
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checks if no error has occurred i.e. I/O operations are available (public member function of std::basic_ios )
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checks if end-of-file has been reached (public member function of std::basic_ios )
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checks if a recoverable error has occurred (public member function of std::basic_ios )
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checks if a non-recoverable error has occurred (public member function of std::basic_ios )
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checks if an error has occurred (synonym of fail()) (public member function of std::basic_ios )
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(until C++11)(since C++11)
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checks if no error has occurred (synonym of !fail()) (public member function of std::basic_ios )
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returns state flags (public member function of std::basic_ios )
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sets state flags (public member function of std::basic_ios )
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clears error and eof flags (public member function of std::basic_ios )
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Formatting |
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copies formatting information (public member function of std::basic_ios )
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manages the fill character (public member function of std::basic_ios )
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Miscellaneous |
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manages exception mask (public member function of std::basic_ios )
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sets the locale (public member function of std::basic_ios )
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manages associated stream buffer (public member function of std::basic_ios )
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manages tied stream (public member function of std::basic_ios )
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narrows characters (public member function of std::basic_ios )
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widens characters (public member function of std::basic_ios )
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Inherited from std::ios_base
Member functions
Formatting |
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manages format flags (public member function of std::ios_base )
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sets specific format flag (public member function of std::ios_base )
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clears specific format flag (public member function of std::ios_base )
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manages decimal precision of floating point operations (public member function of std::ios_base )
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manages field width (public member function of std::ios_base )
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Locales |
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sets locale (public member function of std::ios_base )
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returns current locale (public member function of std::ios_base )
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Internal extensible array |
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[static]
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returns a program-wide unique integer that is safe to use as index to pword() and iword() (public static member function of std::ios_base )
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resizes the private storage if necessary and access to the long element at the given index (public member function of std::ios_base )
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resizes the private storage if necessary and access to the void* element at the given index (public member function of std::ios_base )
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Miscellaneous |
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registers event callback function (public member function of std::ios_base )
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[static]
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sets whether C++ and C IO libraries are interoperable (public static member function of std::ios_base )
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Member classes |
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stream exception (public member class of std::ios_base )
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initializes standard stream objects (public member class of std::ios_base )
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Member types and constants |
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Type | Explanation | ||||||||||||||||||||||||||||||||||||||
stream open mode type
The following constants are also defined:
(typedef) |
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formatting flags type
The following constants are also defined:
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state of the stream type
The following constants are also defined:
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seeking direction type
The following constants are also defined:
(typedef) |
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specifies event type (enum) |
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callback function type (typedef) |