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236ac495dSmrg<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Chapter 6.  Utilities</title><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><meta name="keywords" content="ISO C++, library" /><meta name="keywords" content="ISO C++, runtime, library" /><link rel="home" href="../index.html" title="The GNU C++ Library" /><link rel="up" href="std_contents.html" title="Part II.  Standard Contents" /><link rel="prev" href="concept_checking.html" title="Concept Checking" /><link rel="next" href="pairs.html" title="Pairs" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 6. 
336ac495dSmrg  Utilities
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536ac495dSmrg</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="concept_checking.html">Prev</a> </td><th width="60%" align="center">Part II. 
636ac495dSmrg    Standard Contents
736ac495dSmrg  </th><td width="20%" align="right"> <a accesskey="n" href="pairs.html">Next</a></td></tr></table><hr /></div><div class="chapter"><div class="titlepage"><div><div><h2 class="title"><a id="std.util"></a>Chapter 6. 
836ac495dSmrg  Utilities
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1036ac495dSmrg</h2></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="section"><a href="utilities.html#std.util.functors">Functors</a></span></dt><dt><span class="section"><a href="pairs.html">Pairs</a></span></dt><dt><span class="section"><a href="memory.html">Memory</a></span></dt><dd><dl><dt><span class="section"><a href="memory.html#std.util.memory.allocator">Allocators</a></span></dt><dd><dl><dt><span class="section"><a href="memory.html#allocator.req">Requirements</a></span></dt><dt><span class="section"><a href="memory.html#allocator.design_issues">Design Issues</a></span></dt><dt><span class="section"><a href="memory.html#allocator.impl">Implementation</a></span></dt><dd><dl><dt><span class="section"><a href="memory.html#allocator.interface">Interface Design</a></span></dt><dt><span class="section"><a href="memory.html#allocator.default">Selecting Default Allocation Policy</a></span></dt><dt><span class="section"><a href="memory.html#allocator.caching">Disabling Memory Caching</a></span></dt></dl></dd><dt><span class="section"><a href="memory.html#allocator.using">Using a Specific Allocator</a></span></dt><dt><span class="section"><a href="memory.html#allocator.custom">Custom Allocators</a></span></dt><dt><span class="section"><a href="memory.html#allocator.ext">Extension Allocators</a></span></dt></dl></dd><dt><span class="section"><a href="memory.html#std.util.memory.auto_ptr">auto_ptr</a></span></dt><dd><dl><dt><span class="section"><a href="memory.html#auto_ptr.limitations">Limitations</a></span></dt><dt><span class="section"><a href="memory.html#auto_ptr.using">Use in Containers</a></span></dt></dl></dd><dt><span class="section"><a href="memory.html#std.util.memory.shared_ptr">shared_ptr</a></span></dt><dd><dl><dt><span class="section"><a href="memory.html#shared_ptr.req">Requirements</a></span></dt><dt><span class="section"><a href="memory.html#shared_ptr.design_issues">Design Issues</a></span></dt><dt><span class="section"><a href="memory.html#shared_ptr.impl">Implementation</a></span></dt><dd><dl><dt><span class="section"><a href="memory.html#shared_ptr.hier">Class Hierarchy</a></span></dt><dt><span class="section"><a href="memory.html#shared_ptr.thread">Thread Safety</a></span></dt><dt><span class="section"><a href="memory.html#shared_ptr.policy">Selecting Lock Policy</a></span></dt><dt><span class="section"><a href="memory.html#shared_ptr.rel">Related functions and classes</a></span></dt></dl></dd><dt><span class="section"><a href="memory.html#shared_ptr.using">Use</a></span></dt><dd><dl><dt><span class="section"><a href="memory.html#shared_ptr.examples">Examples</a></span></dt><dt><span class="section"><a href="memory.html#shared_ptr.issues">Unresolved Issues</a></span></dt></dl></dd><dt><span class="section"><a href="memory.html#shared_ptr.ack">Acknowledgments</a></span></dt></dl></dd></dl></dd><dt><span class="section"><a href="traits.html">Traits</a></span></dt></dl></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="std.util.functors"></a>Functors</h2></div></div></div><p>If you don't know what functors are, you're not alone.  Many people
1136ac495dSmrg      get slightly the wrong idea.  In the interest of not reinventing
1236ac495dSmrg      the wheel, we will refer you to the introduction to the functor
1336ac495dSmrg      concept written by SGI as part of their STL, in
14*a2dc1f3fSmrg      <a class="link" href="https://web.archive.org/web/20171225062613/http://www.sgi.com/tech/stl/functors.html" target="_top">their
15*a2dc1f3fSmrg      https://web.archive.org/web/20171225062613/http://www.sgi.com/tech/stl/functors.html</a>.
1636ac495dSmrg   </p></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="concept_checking.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="std_contents.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="pairs.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Concept Checking </td><td width="20%" align="center"><a accesskey="h" href="../index.html">Home</a></td><td width="40%" align="right" valign="top"> Pairs</td></tr></table></div></body></html>