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<H2>&lt;iostream&gt;</H2>
<P><B>Library:</B>&nbsp;&nbsp;<A HREF="2-11.html">Input/output</A></P>

<PRE><HR><B><I>Header</I></B><HR></PRE>

<UL>
<LI><A HREF="#sec1">Local Index</A></LI>
<LI><A HREF="#sec2">Summary</A></LI>
<LI><A HREF="#sec3">Synopsis</A></LI>
<LI><A HREF="#sec4">See Also</A></LI>
<LI><A HREF="#sec5">Standards Conformance</A></LI>
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<A NAME="sec1"><H3>Local Index</H3></A>
No Entries
<A NAME="sec2"><H3>Summary</H3></A>
<P>The header <SAMP>&lt;iostream&gt;</SAMP> is part of the Input/output library of the C++ Standard Library. It declares the eight standard iostream objects: <SAMP>cin</SAMP>, <SAMP>cout</SAMP>, <SAMP>cerr</SAMP>, <SAMP>clog</SAMP>, <SAMP>wcin</SAMP>, <SAMP>wcout</SAMP>, <SAMP>wcerr</SAMP>, and <SAMP>wclog</SAMP>.</P>
<A NAME="sec3"><H3>Synopsis</H3></A>

<PRE>namespace std {
  extern istream <SAMP><A HREF="cin.html">cin</A></SAMP>;
  extern ostream <SAMP><A HREF="cout.html">cout</A></SAMP>;
  extern ostream <SAMP><A HREF="cerr.html">cerr</A></SAMP>;
  extern ostream <SAMP><A HREF="clog.html">clog</A></SAMP>;

  extern wistream <SAMP><A HREF="wcin.html">wcin</A></SAMP>;
  extern wostream <SAMP><A HREF="wcout.html">wcout</A></SAMP>;
  extern wostream <SAMP><A HREF="wcerr.html">wcerr</A></SAMP>;
  extern wostream <SAMP><A HREF="wclog.html">wclog</A></SAMP>;
}
</PRE>
<A NAME="sec4"><H3>See Also</H3></A>
<P><B><I><A HREF="cin.html">cin</A></I></B>, <B><I><A HREF="cout.html">cout</A></I></B>, <B><I><A HREF="cerr.html">cerr</A></I></B>, <B><I><A HREF="clog.html">clog</A></I></B>, <B><I><A HREF="wcin.html">wcin</A></I></B>, <B><I><A HREF="wcout.html">wcout</A></I></B>, <B><I><A HREF="wcerr.html">wcerr</A></I></B>, <B><I><A HREF="wclog.html">wclog</A></I></B></P>
<A NAME="sec5"><H3>Standards Conformance</H3></A>
<P><I>ISO/IEC 14882:1998 -- International Standard for Information Systems --Programming Language C++, Section 27.3</I></P>

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