Input/output library
Input/output library
C++ includes two input/output libraries: a modern, stream-based I/O library and the standard set of C-style I/O functions.
Stream-based I/O
The stream-based input/output library is organized around abstract input/output devices. These abstract devices allow the same code to handle input/output to files, memory streams, or custom adaptor devices that perform arbitrary operations (e.g. compression) on the fly.
Most of the classes are templated, so they can be adapted to any basic character type. Separate typedefs are provided for the most common basic character types (char and wchar_t). The classes are organized into the following hierarchy:
