ios

The ios class is the base class for the classes that format data that is extracted from or inserted into the stream buffer. The derived classes support the movement of formatted and unformatted data to and from the stream buffer.

The ios class maintains the format and error state information for the classes that are derived from it. The format state is a collection of flags and variables that can be set to control the details of formatting operations for input and output. The error state is a collection of flags that records whether any errors have taken place in the processing of the ios object. It also recoreds whether the end of an input stream has been reached.

Class header file: iostream.h