<!--
    Licensed to the Apache Software  Foundation (ASF) under one or more
    contributor  license agreements.  See  the NOTICE  file distributed
    with  this  work  for  additional information  regarding  copyright
    ownership.   The ASF  licenses this  file to  you under  the Apache
    License, Version  2.0 (the  License); you may  not use  this file
    except in  compliance with the License.   You may obtain  a copy of
    the License at

    http://www.apache.org/licenses/LICENSE-2.0

    Unless required by applicable law or agreed to in writing, software
    distributed under the  License is distributed on an  "AS IS" BASIS,
    WITHOUT  WARRANTIES OR CONDITIONS  OF ANY  KIND, either  express or
    implied.   See  the License  for  the  specific language  governing
    permissions and limitations under the License.

    Copyright 1999-2007 Rogue Wave Software, Inc.
-->

<HTML>
<HEAD>
<TITLE>&lt;iterator&gt;</TITLE>
<LINK REL=StyleSheet HREF="../rw.css" TYPE="text/css" TITLE="Apache stdcxx Stylesheet"></HEAD>
<BODY BGCOLOR=#FFFFFF>
<A HREF="iter-swap.html"><IMG SRC="images/bprev.gif" WIDTH=20 HEIGHT=21 ALT="Previous file" BORDER=O></A><A HREF="noframes.html"><IMG SRC="images/btop.gif" WIDTH=56 HEIGHT=21 ALT="Top of Document" BORDER=O></A><A HREF="booktoc.html"><IMG SRC="images/btoc.gif" WIDTH=56 HEIGHT=21 ALT="Contents" BORDER=O></A><A HREF="tindex.html"><IMG SRC="images/bindex.gif" WIDTH=56 HEIGHT=21 ALT="Index page" BORDER=O></A><A HREF="iterator.html"><IMG SRC="images/bnext.gif" WIDTH=25 HEIGHT=21 ALT="Next file" BORDER=O></A><DIV CLASS="DOCUMENTNAME"><B>Apache C++ Standard Library Reference Guide</B></DIV>
<H2>&lt;iterator&gt;</H2>
<P><B>Library:</B>&nbsp;&nbsp;<A HREF="2-8.html">Iterators</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>
</UL>
<A NAME="sec1"><H3>Local Index</H3></A>
No Entries
<A NAME="sec2"><H3>Summary</H3></A>
<P>The header <SAMP>&lt;iterator&gt;</SAMP> represents the Iterators library of the Standard C++  Library. It defines: </P>
<UL>
<LI><P CLASS="LIST">the class template <B><I><A HREF="iterator-traits.html">iterator_traits</A></I></B> and two partial specializations of <B><I>iterator_traits</I></B> on pointers and const pointers</P></LI>
<LI><P CLASS="LIST">the classes input_iterator_tag, output_iterator_tag, forward_iterator_tag, bidirectional_iterator_tag and random_access_iterator_tag </P></LI>
<LI><P CLASS="LIST">the class templates <B><I><A HREF="reverse-iterator.html">reverse_iterator</A></I></B>, <B><I><A HREF="back-insert-iterator.html">back_insert_iterator</A></I></B>, <B><I><A HREF="front-insert-iterator.html">front_insert_iterator</A></I></B>, <B><I><A HREF="insert-iterator.html">insert_iterator</A></I></B>, <B><I><A HREF="istream-iterator.html">istream_iterator</A></I></B>, <B><I>ostream_isterator</I></B>, <B><I><A HREF="istreambuf-iterator.html">istreambuf_iterator</A></I></B>, and <B><I><A HREF="ostreambuf-iterator.html">ostreambuf_iterator</A></I></B></P></LI>
<LI><P CLASS="LIST">the helper function templates <SAMP><A HREF="advance.html">advance()</A></SAMP>, <SAMP><A HREF="distance.html">distance()</A></SAMP>, <SAMP><A HREF="back-insert-iterator.html">back_inserter()</A></SAMP>, <SAMP><A HREF="front-insert-iterator.html">front_inserter()</A></SAMP>, <SAMP><A HREF="insert-iterator.html">inserter()</A></SAMP></P></LI>
<LI><P CLASS="LIST">a set of relational operators that C++ programs may use to perform equality and inequality tests on specializations of <B><I><A HREF="reverse-iterator.html">reverse_iterator</A></I></B></P></LI>
<LI><P CLASS="LIST">the equality and inequality operators specialized for <B><I><A HREF="istream-iterator.html">istream_iterator</A></I></B> and <B><I><A HREF="istreambuf-iterator.html">istreambuf_iterator</A></I></B></P></LI>
</UL>
<A NAME="sec3"><H3>Synopsis</H3></A>

<PRE>namespace std {
  template&lt;class Iterator&gt; struct <SAMP><A HREF="iterator-traits.html">iterator_traits</A></SAMP>;
  template&lt;class T&gt; struct iterator_traits&lt;T*&gt;;
  template&lt;class T&gt; struct iterator_traits&lt;const T*&gt;;

  template&lt;class Category, class T,
           class Distance = ptrdiff_t,
           class Pointer = T*, class Reference = T&amp;&gt;
  struct <SAMP><A HREF="iterator.html">iterator</A></SAMP>;

  struct <SAMP>input_iterator_tag</SAMP> {};
  struct <SAMP>output_iterator_tag</SAMP> {};
  struct <SAMP>forward_iterator_tag</SAMP>: input_iterator_tag {};
  struct <SAMP>bidirectional_iterator_tag</SAMP> : forward_iterator_tag {};
  struct <SAMP>random_access_iterator_tag</SAMP> :
                bidirectional_iterator_tag {};

  template &lt;class InputIterator, class Distance&gt;
  void <SAMP><A HREF="advance.html">advance</A></SAMP>(InputIterator&amp; i, Distance n);
  template &lt;class InputIterator&gt;
  typename iterator_traits&lt;InputIterator&gt;::difference_type
  <SAMP><A HREF="distance.html">distance</A></SAMP>(InputIterator start, InputIterator finish);

  template &lt;class Iterator&gt; 
  class <SAMP><A HREF="reverse-iterator.html">reverse_iterator</A></SAMP>;

  template &lt;class Iterator&gt;
  bool operator==(const reverse_iterator&lt;Iterator&gt;&amp;, 
                  const reverse_iterator&lt;Iterator&gt;&amp;);
  template &lt;class Iterator&gt;
  bool operator&lt;(const reverse_iterator&lt;Iterator&gt;&amp;, 
                 const reverse_iterator&lt;Iterator&gt;&amp;);
  template &lt;class Iterator&gt;
  bool operator!=(const reverse_iterator&lt;Iterator&gt;&amp;, 
                  const reverse_iterator&lt;Iterator&gt;&amp;);
  template &lt;class Iterator&gt;
  bool operator&gt;(const reverse_iterator&lt;Iterator&gt;&amp;, 
                 const reverse_iterator&lt;Iterator&gt;&amp;);
  template &lt;class Iterator&gt;
  bool operator&gt;=(const reverse_iterator&lt;Iterator&gt;&amp;, 
                  const reverse_iterator&lt;Iterator&gt;&amp;);
  template &lt;class Iterator&gt;
  bool operator&lt;=(const reverse_iterator&lt;Iterator&gt;&amp;, 
                  const reverse_iterator&lt;Iterator&gt;&amp;);

  template &lt;class Iterator&gt;
  typename reverse_iterator&lt;Iterator&gt;::difference_type
  operator-(const reverse_iterator&lt;Iterator&gt;&amp;, 
            const reverse_iterator&lt;Iterator&gt;&amp;);
  template &lt;class Iterator&gt;
  reverse_iterator&lt;Iterator&gt;
  operator+(typename
            reverse_iterator&lt;Iterator&gt;::difference_type,
            const reverse_iterator&lt;Iterator&gt;&amp;);

  template &lt;class Container&gt; class <SAMP><A HREF="back-insert-iterator.html">back_insert_iterator</A></SAMP>;
  template &lt;class Container&gt;
  back_insert_iterator&lt;Container&gt; <SAMP><A HREF="back-insert-iterator.html">back_inserter</A></SAMP>(Container&amp;);

  template &lt;class Container&gt; class <SAMP><A HREF="front-insert-iterator.html">front_insert_iterator</A></SAMP>;
  template &lt;class Container&gt;
  front_insert_iterator&lt;Container&gt; <SAMP><A HREF="front-insert-iterator.html">front_inserter</A></SAMP>(Container&amp;);

  template &lt;class Container&gt; class <SAMP><A HREF="insert-iterator.html">insert_iterator</A></SAMP>;
  template &lt;class Container, class Iterator&gt;
  insert_iterator&lt;Container&gt; <SAMP><A HREF="insert-iterator.html">inserter</A></SAMP>(Container&amp;, Iterator);

  template &lt;class T, class charT = char,
            class traits = char_traits&lt;charT&gt;,
            class Distance = ptrdiff_t&gt;
  class <SAMP><A HREF="istream-iterator.html">istream_iterator</A></SAMP>;
  template &lt;class T, class charT, class traits, 
            class Distance&gt;
  bool operator==(const istream_iterator&lt;T, charT, traits,
                  Distance&gt;&amp;, const istream_iterator&lt;T, charT,
                  traits, Distance&gt;&amp;);
  template &lt;class T, class charT, class traits, 
            class Distance&gt;
  bool operator!=(const istream_iterator&lt;T, charT, traits,
                  Distance&gt;&amp;, const istream_iterator&lt;T, 
                  charT, traits, Distance&gt;&amp;);

  template &lt;class T, class charT = char, 
            class traits = char_traits&lt;charT&gt; &gt;
  class <SAMP><A HREF="ostream-iterator.html">ostream_iterator</A></SAMP>;

  template&lt;class charT, class traits = char_traits&lt;charT&gt; &gt;
  class istreambuf_iterator;
  template &lt;class charT, class traits&gt;
  bool operator==(const istreambuf_iterator&lt;charT, traits&gt;&amp;, 
                  const istreambuf_iterator&lt;charT, traits&gt;&amp;);
  template &lt;class charT, class traits&gt;
  bool operator!=(const istreambuf_iterator&lt;charT, traits&gt;&amp;, 
                  const istreambuf_iterator&lt;charT, traits&gt;&amp;);

  template &lt;class charT, class traits = char_traits&lt;charT&gt; &gt;
  class <SAMP><A HREF="ostreambuf-iterator.html">ostreambuf_iterator</A></SAMP>;
}
</PRE>
<A NAME="sec4"><H3>See Also</H3></A>
<P><B><I><A HREF="iterator-traits.html">iterator_traits</A></I></B>, <B><I><A HREF="iterator.html">iterator</A></I></B>, <SAMP><A HREF="advance.html">advance()</A></SAMP>, <SAMP><A HREF="distance.html">distance()</A></SAMP>, <B><I><A HREF="reverse-iterator.html">reverse_iterator</A></I></B>, <B><I><A HREF="back-insert-iterator.html">back_insert_iterator</A></I></B>, <SAMP><A HREF="back-insert-iterator.html">back_inserter()</A></SAMP>, <B><I><A HREF="front-insert-iterator.html">front_insert_iterator</A></I></B>, <SAMP><A HREF="front-insert-iterator.html">front_inserter()</A></SAMP>, <B><I><A HREF="insert-iterator.html">insert_iterator</A></I></B>, <SAMP><A HREF="insert-iterator.html">inserter()</A></SAMP>, <B><I><A HREF="istream-iterator.html">istream_iterator</A></I></B>, <B><I><A HREF="ostream-iterator.html">ostream_iterator</A></I></B>, <B><I><A HREF="istreambuf-iterator.html">istreambuf_iterator</A></I></B>, <B><I><A HREF="ostreambuf-iterator.html">ostreambuf_iterator</A></I></B>, <A HREF="bidirectionaliterators.html">Bidirectional Iterators</A>, <A HREF="inputiterators.html">Input Iterators</A>, <A HREF="insertiterators.html">Insert Iterators</A>, Iterators, <A HREF="outputiterators.html">Output Iterators</A>, <A HREF="randomaccessiterators.html">Random Access Iterators</A>, <A HREF="streamiterators.html">Stream Iterators</A></P>
<A NAME="sec5"><H3>Standards Conformance</H3></A>
<P><I>ISO/IEC 14882:1998 -- International Standard for Information Systems --Programming Language C++, Section 24</I></P>

<BR>
<HR>
<A HREF="iter-swap.html"><IMG SRC="images/bprev.gif" WIDTH=20 HEIGHT=21 ALT="Previous file" BORDER=O></A><A HREF="noframes.html"><IMG SRC="images/btop.gif" WIDTH=56 HEIGHT=21 ALT="Top of Document" BORDER=O></A><A HREF="booktoc.html"><IMG SRC="images/btoc.gif" WIDTH=56 HEIGHT=21 ALT="Contents" BORDER=O></A><A HREF="tindex.html"><IMG SRC="images/bindex.gif" WIDTH=56 HEIGHT=21 ALT="Index page" BORDER=O></A><A HREF="iterator.html"><IMG SRC="images/bnext.gif" WIDTH=20 HEIGHT=21 ALT="Next file" BORDER=O></A>

<!-- Google Analytics tracking code -->
<script src="http://www.google-analytics.com/urchin.js" type="text/javascript">
</script>
<script type="text/javascript">
    _uacct = "UA-1775151-1";
    urchinTracker();
</script>
<!-- end of Google Analytics tracking code -->

</BODY>
</HTML>