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Finished iterator_adaptor tutorial

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Added example test code
Rolled forward old counting_iterator abstract for boost docs.


[SVN r21649]
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Dave Abrahams
2004-01-12 20:58:22 +00:00
parent 19dbb5304c
commit 3bf52ec2f2
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doc/counting_iterator.html
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<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="generator" content="Docutils 0.2.8: http://docutils.sourceforge.net/" />
<meta name="generator" content="Docutils 0.3.1: http://docutils.sourceforge.net/" />
<title>Counting Iterator</title>
<meta name="author" content="David Abrahams, Jeremy Siek, Thomas Witt" />
<meta name="organization" content="Boost Consulting, Indiana University Open Systems Lab, University of Hanover Institute for Transport Railway Operation and Construction" />
@ -36,12 +36,21 @@ Railway Operation and Construction</a></td></tr>
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field"><th class="field-name">abstract:</th><td class="field-body"></td>
<tr class="field"><th class="field-name">abstract:</th><td class="field-body">How would you fill up a vector with the numbers zero
through one hundred using <tt class="literal"><span class="pre">std::copy()</span></tt>? The only iterator
operation missing from builtin integer types is an
<tt class="literal"><span class="pre">operator*()</span></tt> that returns the current value of the integer.
The counting iterator adaptor adds this crucial piece of
functionality to whatever type it wraps. One can use the
counting iterator adaptor not only with integer types, but with
any type that is <strong>Incrementable</strong> (see type requirements
below).</td>
</tr>
</tbody>
</table>
<p><tt class="literal"><span class="pre">counting_iterator</span></tt> adapts an arithmetic type, such as <tt class="literal"><span class="pre">int</span></tt>, by
adding an <tt class="literal"><span class="pre">operator*</span></tt> that returns the current value of the object.</p>
<p><tt class="literal"><span class="pre">counting_iterator</span></tt> adapts an incrementable type such as <tt class="literal"><span class="pre">int</span></tt>
or <tt class="literal"><span class="pre">std::list&lt;std::string&gt;::iterator</span></tt>, by adding an <tt class="literal"><span class="pre">operator*</span></tt>
that returns the current value of the object.</p>
<div class="contents topic" id="table-of-contents">
<p class="topic-title"><a name="table-of-contents">Table of Contents</a></p>
<ul class="simple">
@ -245,10 +254,10 @@ indirectly printing out the numbers from 0 to 7
<p>The source code for this example can be found <a class="reference" href="../example/counting_iterator_example.cpp">here</a>.</p>
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