<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
|
<html>
|
<!-- This file documents the BFD library.
|
|
Copyright (C) 1991-2016 Free Software Foundation, Inc.
|
|
Permission is granted to copy, distribute and/or modify this document
|
under the terms of the GNU Free Documentation License, Version 1.3 or
|
any later version published by the Free Software Foundation; with the
|
Invariant Sections being "GNU General Public License" and "Funding
|
Free Software", the Front-Cover texts being (a) (see below), and with
|
the Back-Cover Texts being (b) (see below). A copy of the license is
|
included in the section entitled "GNU Free Documentation License".
|
|
(a) The FSF's Front-Cover Text is:
|
|
A GNU Manual
|
|
(b) The FSF's Back-Cover Text is:
|
|
You have freedom to copy and modify this GNU Manual, like GNU
|
software. Copies published by the Free Software Foundation raise
|
funds for GNU development. -->
|
<!-- Created by GNU Texinfo 5.2, http://www.gnu.org/software/texinfo/ -->
|
<head>
|
<title>Untitled Document: Deriving a New Hash Table Type</title>
|
|
<meta name="description" content="Untitled Document: Deriving a New Hash Table Type">
|
<meta name="keywords" content="Untitled Document: Deriving a New Hash Table Type">
|
<meta name="resource-type" content="document">
|
<meta name="distribution" content="global">
|
<meta name="Generator" content="makeinfo">
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
|
<link href="index.html#Top" rel="start" title="Top">
|
<link href="BFD-Index.html#BFD-Index" rel="index" title="BFD Index">
|
<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
|
<link href="Hash-Tables.html#Hash-Tables" rel="up" title="Hash Tables">
|
<link href="Define-the-Derived-Structures.html#Define-the-Derived-Structures" rel="next" title="Define the Derived Structures">
|
<link href="Traversing-a-Hash-Table.html#Traversing-a-Hash-Table" rel="prev" title="Traversing a Hash Table">
|
<style type="text/css">
|
<!--
|
a.summary-letter {text-decoration: none}
|
blockquote.smallquotation {font-size: smaller}
|
div.display {margin-left: 3.2em}
|
div.example {margin-left: 3.2em}
|
div.indentedblock {margin-left: 3.2em}
|
div.lisp {margin-left: 3.2em}
|
div.smalldisplay {margin-left: 3.2em}
|
div.smallexample {margin-left: 3.2em}
|
div.smallindentedblock {margin-left: 3.2em; font-size: smaller}
|
div.smalllisp {margin-left: 3.2em}
|
kbd {font-style:oblique}
|
pre.display {font-family: inherit}
|
pre.format {font-family: inherit}
|
pre.menu-comment {font-family: serif}
|
pre.menu-preformatted {font-family: serif}
|
pre.smalldisplay {font-family: inherit; font-size: smaller}
|
pre.smallexample {font-size: smaller}
|
pre.smallformat {font-family: inherit; font-size: smaller}
|
pre.smalllisp {font-size: smaller}
|
span.nocodebreak {white-space:nowrap}
|
span.nolinebreak {white-space:nowrap}
|
span.roman {font-family:serif; font-weight:normal}
|
span.sansserif {font-family:sans-serif; font-weight:normal}
|
ul.no-bullet {list-style: none}
|
-->
|
</style>
|
|
|
</head>
|
|
<body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000">
|
<a name="Deriving-a-New-Hash-Table-Type"></a>
|
<div class="header">
|
<p>
|
Previous: <a href="Traversing-a-Hash-Table.html#Traversing-a-Hash-Table" accesskey="p" rel="prev">Traversing a Hash Table</a>, Up: <a href="Hash-Tables.html#Hash-Tables" accesskey="u" rel="up">Hash Tables</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="BFD-Index.html#BFD-Index" title="Index" rel="index">Index</a>]</p>
|
</div>
|
<hr>
|
<a name="Deriving-a-new-hash-table-type"></a>
|
<h4 class="subsection">2.18.4 Deriving a new hash table type</h4>
|
<p>Many uses of hash tables want to store additional information
|
which each entry in the hash table. Some also find it
|
convenient to store additional information with the hash table
|
itself. This may be done using a derived hash table.
|
</p>
|
<p>Since C is not an object oriented language, creating a derived
|
hash table requires sticking together some boilerplate
|
routines with a few differences specific to the type of hash
|
table you want to create.
|
</p>
|
<p>An example of a derived hash table is the linker hash table.
|
The structures for this are defined in <code>bfdlink.h</code>. The
|
functions are in <code>linker.c</code>.
|
</p>
|
<p>You may also derive a hash table from an already derived hash
|
table. For example, the a.out linker backend code uses a hash
|
table derived from the linker hash table.
|
</p>
|
<table class="menu" border="0" cellspacing="0">
|
<tr><td align="left" valign="top">• <a href="Define-the-Derived-Structures.html#Define-the-Derived-Structures" accesskey="1">Define the Derived Structures</a>:</td><td> </td><td align="left" valign="top">
|
</td></tr>
|
<tr><td align="left" valign="top">• <a href="Write-the-Derived-Creation-Routine.html#Write-the-Derived-Creation-Routine" accesskey="2">Write the Derived Creation Routine</a>:</td><td> </td><td align="left" valign="top">
|
</td></tr>
|
<tr><td align="left" valign="top">• <a href="Write-Other-Derived-Routines.html#Write-Other-Derived-Routines" accesskey="3">Write Other Derived Routines</a>:</td><td> </td><td align="left" valign="top">
|
</td></tr>
|
</table>
|
|
|
|
|
</body>
|
</html>
|
