ios manipulators unitbuf() function in C++

The unitbuf() method of stream manipulators in C++ is used to set the unitbuf format flag for the specified str stream. This flag flushes the associated buffer after each operation. Syntax:

ios_base& unitbuf (ios_base& str)

Parameters: This method accepts str as a parameter which is the stream for which the format flag is affected. Return Value: This method returns the stream str with unitbuf format flag set. Example 1: Example 2:

Reference: https://cplusplus.com/reference/ios/unitbuf/