Concept of Stream and It's bytestream class in c++

Concept of streams:-

Concept of stream 

• A stream is general name given to flow of data

• A stream is a sequence of byte.

• The source stream that provides data to programs is called input stream.

• The destination stream receive output from the program is called output stream.

• In header <iostream>, a set of class is defined that supports I/O operations.

• The classes used for input/output to the devices are declared in the IOSTREAM file.

• The classes used for disk file are declared in the FSTREAM file.

Input/output stream :-

Input and output stream in c++

Stream class for console I/O operations :-

stream class in c++

• ios class contains basic facilities that are used by all other input and output classes (Necessary for formatted input/output).

• Also contains pointer to a buffer object(streambuf).

• streambuf provided an interface to physical devices through buffer.

• iostream class inherits properties istream and ostream class through multiple inheritance.

• The class ios declared as the virtual base class so that only one copy of its members  inherited by the iostream.

• istream_withassign, ostream_withassign and iostream_withassign and assignment operation to its base classes.

• Cout which is directed to video display, is predefined object of ostream_withassign.

• Similarly cin is an object of istream_withassign.