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C++ Tutorial

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Add Two Numbers

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C++ iostream Library (Standard Input / Output Streams)


C++ iostream objects

The <iostream> library provides objects which can read user input and output data to the console or to a file.

A list of all iostream objects can be found in the table below.

Object Description
cerr An output stream for error messages
clog An output stream to log program information
cin An input stream that reads keyboard input from the console by default
cout An output stream which writes output to the console by default
wcerr The same as cerr but outputs wide char (wchar_t) data rather than char data
wclog The same as clog but outputs wide char (wchar_t) data rather than char data
wcin The same as cin but interprets each input character as a wide char (wchar_t)
wcout The same as cout but outputs wide char (wchar_t) data rather than char data

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