.\" ident @(#)iterator.3
.\" Standard Template Library
.\" $$RW_INSERT_HEADER "slyrs.man"
.TH iterator 3C++ "02 Apr 1998" "Rogue Wave Software" "-"
.ce2
Standard C++ Library   
Copyright 1998, Rogue Wave Software, Inc.   

.SH NAME

\f2iterator\fP

\ - A base iterator class.



.SH  SYNOPSIS


.RE
.RS 0
#include <iterator>
.br
template <class Category, class T, 
.RE
.RS 9
class Distance = ptrdiff_t, class Pointer = T*,
.br
class Reference = T&>
.RE
.RS 0
struct iterator
.br
{
.RE
.RS 2
typedef T value_type;
.br
typedef Distance difference_type;
.br
typedef Pointer pointer;
.br
typedef Reference reference;
.br
typedef Category iterator_category;
.RE
.RS 0
};



.SH  DESCRIPTION


The_iterator 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: \f2value_type\fP, \f2difference_type\fP, \f2pointer\fP, \f2reference\fP, and \f2iterator_category\fP. These types are used primarily by classes derived from iterator and by the_iterator_traits class.

See the iterators section for a description of iterators and the capabilities associated with various types.



.SH  SEE ALSO


iterator_traits