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)


Wide characters (wchar_t)