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| 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> |
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| <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. |
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| <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"> |
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| <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"> |
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| <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"> |
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