header

<iostream>

Standard Input / Output Streams Library
Header that defines the standard input/output stream objects:

Including this header may automatically include other headers, such as <ios> , <streambuf> , <istream> , <ostream> and/or <iosfwd> .
Including <iostream> automatically includes also <ios> , <streambuf> , <istream> , <ostream> and <iosfwd> .

Note that the iostream class is mainly declared in header <istream> .

Objects


Narrow characters (char)

cin
Standard input stream (object)
cout
Standard output stream (object)
cerr
Standard output stream for errors (object)
clog
Standard output stream for logging (object)

Wide characters (wchar_t)

wcin
Standard input stream (wide) (object)
wcout
Standard output stream (wide) (object)
wcerr
Standard output stream for errors (wide-oriented) (object)
wclog
Standard output stream for logging (wide) (object)

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