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103 lines
4.8 KiB
HTML
103 lines
4.8 KiB
HTML
4 years ago
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<!-- This file documents the BFD library.
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Copyright (C) 1991-2019 Free Software Foundation, Inc.
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.3 or
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any later version published by the Free Software Foundation; with the
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Invariant Sections being "GNU General Public License" and "Funding
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Free Software", the Front-Cover texts being (a) (see below), and with
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the Back-Cover Texts being (b) (see below). A copy of the license is
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included in the section entitled "GNU Free Documentation License".
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(a) The FSF's Front-Cover Text is:
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A GNU Manual
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(b) The FSF's Back-Cover Text is:
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You have freedom to copy and modify this GNU Manual, like GNU
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software. Copies published by the Free Software Foundation raise
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funds for GNU development. -->
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<!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ -->
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<head>
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<title>Define the Derived Structures (Untitled Document)</title>
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<meta name="description" content="Define the Derived Structures (Untitled Document)">
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<link href="index.html#Top" rel="start" title="Top">
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<link href="BFD-Index.html#BFD-Index" rel="index" title="BFD Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="Deriving-a-New-Hash-Table-Type.html#Deriving-a-New-Hash-Table-Type" rel="up" title="Deriving a New Hash Table Type">
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<link href="Write-the-Derived-Creation-Routine.html#Write-the-Derived-Creation-Routine" rel="next" title="Write the Derived Creation Routine">
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<link href="Deriving-a-New-Hash-Table-Type.html#Deriving-a-New-Hash-Table-Type" rel="prev" title="Deriving a New Hash Table Type">
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</head>
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<body lang="en">
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<a name="Define-the-Derived-Structures"></a>
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<div class="header">
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<p>
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Next: <a href="Write-the-Derived-Creation-Routine.html#Write-the-Derived-Creation-Routine" accesskey="n" rel="next">Write the Derived Creation Routine</a>, Previous: <a href="Deriving-a-New-Hash-Table-Type.html#Deriving-a-New-Hash-Table-Type" accesskey="p" rel="prev">Deriving a New Hash Table Type</a>, Up: <a href="Deriving-a-New-Hash-Table-Type.html#Deriving-a-New-Hash-Table-Type" accesskey="u" rel="up">Deriving a New Hash Table Type</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>
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</div>
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<hr>
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<a name="Define-the-derived-structures"></a>
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<h4 class="subsubsection">2.18.4.1 Define the derived structures</h4>
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<p>You must define a structure for an entry in the hash table,
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and a structure for the hash table itself.
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</p>
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<p>The first field in the structure for an entry in the hash
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table must be of the type used for an entry in the hash table
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you are deriving from. If you are deriving from a basic hash
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table this is <code>struct bfd_hash_entry</code>, which is defined in
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<code>bfd.h</code>. The first field in the structure for the hash
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table itself must be of the type of the hash table you are
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deriving from itself. If you are deriving from a basic hash
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table, this is <code>struct bfd_hash_table</code>.
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</p>
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<p>For example, the linker hash table defines <code>struct
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bfd_link_hash_entry</code> (in <code>bfdlink.h</code>). The first field,
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<code>root</code>, is of type <code>struct bfd_hash_entry</code>. Similarly,
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the first field in <code>struct bfd_link_hash_table</code>, <code>table</code>,
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is of type <code>struct bfd_hash_table</code>.
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</p>
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</body>
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</html>
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