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| <H2>iterator</H2> |
| <P><B>Library:</B> <A HREF="2-8.html">Iterators</A></P> |
| |
| <PRE><HR><B><I>Does not inherit</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">Description</A></LI> |
| <LI><A HREF="#sec5">See Also</A></LI> |
| <LI><A HREF="#sec6">Standards Conformance</A></LI> |
| </UL> |
| <A NAME="sec1"><H3>Local Index</H3></A> |
| No Entries |
| <A NAME="sec2"><H3>Summary</H3></A> |
| <P>A base iterator class</P> |
| <A NAME="sec3"><H3>Synopsis</H3></A> |
| |
| <PRE>#include <iterator> |
| |
| namespace std { |
| template <class Category, class T, |
| class Distance = ptrdiff_t, class Pointer = T*, |
| class Reference = T&> |
| struct iterator |
| { |
| typedef T value_type; |
| typedef Distance difference_type; |
| typedef Pointer pointer; |
| typedef Reference reference; |
| typedef Category iterator_category; |
| }; |
| } |
| </PRE> |
| <A NAME="sec4"><H3>Description</H3></A> |
| <P>The <B><I>iterator</I></B> structure is a base class from which all other iterator types can be derived. This structure defines an interface that consists of five public types: <SAMP>value_type</SAMP>, <SAMP>difference_type</SAMP>, <SAMP>pointer</SAMP>, <SAMP>reference</SAMP>, and <SAMP>iterator_category</SAMP>. These types are used primarily by classes derived from <B><I>iterator</I></B> and by the <B><I><A HREF="iterator-traits.html">iterator_traits</A></I></B> class.</P> |
| <P>See the <A HREF="iterators.html">Iterators</A> section for a description of iterators and the capabilities associated with various types.</P> |
| <A NAME="sec5"><H3>See Also</H3></A> |
| <P><B><I><A HREF="iterator-traits.html">iterator_traits</A></I></B></P> |
| <A NAME="sec6"><H3>Standards Conformance</H3></A> |
| <P><I>ISO/IEC 14882:1998 -- International Standard for Information Systems -- Programming Language C++, Section 24.3.2</I></P> |
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