C++ Library - <iostream>

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Description

It is used in standard Input / Output Streams Library.

Declaration

Following is the declaration for iosstream function.

C++98

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

C++11

Including <iostream> automatically includes also <ios>, <streambuf>, <istream>,
   <ostream> and <iosfwd>.

Objects

The objects of iosstream should be like this −

Narrow characters (char)

Sr.No. Characters Definition
1 cin Standard input stream
2 cout Standard output stream
3 cerr Standard output stream for errors
4 clog Standard output stream for logging

Wide characters (wchar_t)

Sr.No. Characters Definition
1 wcin Standard input stream (wide)
2 wcout SStandard output stream (wide)
3 wcerr Standard output stream for errors (wide-oriented)
4 wclog Standard output stream for logging (wide)
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