2. C++ File streams #

Created Saturday 25 April 2020

• Streams are used for accessing data from some source(input devices, files or networks) or sending data to a network, file, output devices.

• For achieving this communication, we use the mechanism of streams(literally a pipe or river) in C++.

• In C++, for I/O we have a built-in class, called iostream - input output stream. This has two classes inside, istream, ostream.

  • We have the cin built-in object of class istream which has the extraction operator(>>) overloaded with it.
  • cout is an built-in object of ostream class and has the insertion operator(<<) overloaded with it.
  • Both are available in iostream.

• For file handling, we have fstream class, which has ifstream and ofstream.

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