101 lines
4 KiB
HTML
101 lines
4 KiB
HTML
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<title>HTML Tidy: _TidyAllocator Struct Reference</title>
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<div id="projectname">HTML Tidy
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 <span id="projectnumber">0.1</span>
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<a href="#pub-attribs">Data Fields</a> </div>
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<div class="headertitle">
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<div class="title">_TidyAllocator Struct Reference<div class="ingroups"><a class="el" href="group__Memory.html">Memory Allocation</a></div></div> </div>
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<div class="contents">
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<!-- doxytag: class="_TidyAllocator" -->
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<p><code>#include <<a class="el" href="tidy_8h_source.html">tidy.h</a>></code></p>
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<table class="memberdecls">
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<tr><td colspan="2"><h2><a name="pub-attribs"></a>
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Data Fields</h2></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a2113f1c06a3cfe4cbdf9212a47e6938b"></a><!-- doxytag: member="_TidyAllocator::vtbl" ref="a2113f1c06a3cfe4cbdf9212a47e6938b" args="" -->
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const <a class="el" href="group__Memory.html#ga3fe8c5ac7d658618c732565776940ed8">TidyAllocatorVtbl</a> * </td><td class="memItemRight" valign="bottom"><b>vtbl</b></td></tr>
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</table>
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<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
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<div class="textblock"><p>An allocator. To create your own allocator, do something like the following:</p>
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<p>typedef struct _MyAllocator { TidyAllocator base; ...other custom allocator state... } MyAllocator;</p>
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<p>void* MyAllocator_alloc(TidyAllocator *base, void *block, size_t nBytes) { MyAllocator *self = (MyAllocator*)base; ... } (etc)</p>
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<p>static const TidyAllocatorVtbl MyAllocatorVtbl = { MyAllocator_alloc, MyAllocator_realloc, MyAllocator_free, MyAllocator_panic };</p>
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<p>myAllocator allocator; <a class="el" href="structTidyDoc.html">TidyDoc</a> doc;</p>
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<p>allocator.base.vtbl = &MyAllocatorVtbl; ...initialise allocator specific state... doc = tidyCreateWithAllocator(&allocator); ...</p>
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<p>Although this looks slightly long winded, the advantage is that to create a custom allocator you simply need to set the vtbl pointer correctly. The vtbl itself can reside in static/global data, and hence does not need to be initialised each time an allocator is created, and furthermore the memory is shared amongst all created allocators. </p>
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</div><hr/>The documentation for this struct was generated from the following file:<ul>
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<li><a class="el" href="tidy_8h_source.html">tidy.h</a></li>
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</ul>
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<ul>
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<li class="navelem"><a class="el" href="struct__TidyAllocator.html">_TidyAllocator</a> </li>
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<li class="footer">Generated on Thu Mar 1 2012 17:53:35 for HTML Tidy by
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<a href="http://www.doxygen.org/index.html">
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<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.7.5.1 </li>
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</ul>
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