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| <div class="title">Allocator Class Reference</div> </div> |
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| |
| <p>Concept for allocating, resizing and freeing memory block. |
| <a href="classrapidjson_1_1_allocator.html#details">More...</a></p> |
| |
| <p><code>#include <<a class="el" href="allocators_8h_source.html">allocators.h</a>></code></p> |
| <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2> |
| <div class="textblock"><p>Concept for allocating, resizing and freeing memory block. </p> |
| <p>Note that Malloc() and Realloc() are non-static but Free() is static.</p> |
| <p>So if an allocator need to support Free(), it needs to put its pointer in the header of memory block.</p> |
| <div class="fragment"><div class="line">concept <a class="code" href="classrapidjson_1_1_allocator.html">Allocator</a> {</div> |
| <div class="line"> <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> kNeedFree; <span class="comment">//!< Whether this allocator needs to call Free().</span></div> |
| <div class="line"><span class="comment"></span> </div> |
| <div class="line"> <span class="comment">// Allocate a memory block.</span></div> |
| <div class="line"> <span class="comment">// \param size of the memory block in bytes.</span></div> |
| <div class="line"> <span class="comment">// \returns pointer to the memory block.</span></div> |
| <div class="line"> <span class="keywordtype">void</span>* Malloc(<span class="keywordtype">size_t</span> size);</div> |
| <div class="line"> </div> |
| <div class="line"> <span class="comment">// Resize a memory block.</span></div> |
| <div class="line"> <span class="comment">// \param originalPtr The pointer to current memory block. Null pointer is permitted.</span></div> |
| <div class="line"> <span class="comment">// \param originalSize The current size in bytes. (Design issue: since some allocator may not book-keep this, explicitly pass to it can save memory.)</span></div> |
| <div class="line"> <span class="comment">// \param newSize the new size in bytes.</span></div> |
| <div class="line"> <span class="keywordtype">void</span>* Realloc(<span class="keywordtype">void</span>* originalPtr, <span class="keywordtype">size_t</span> originalSize, <span class="keywordtype">size_t</span> newSize);</div> |
| <div class="line"> </div> |
| <div class="line"> <span class="comment">// Free a memory block.</span></div> |
| <div class="line"> <span class="comment">// \param pointer to the memory block. Null pointer is permitted.</span></div> |
| <div class="line"> <span class="keyword">static</span> <span class="keywordtype">void</span> Free(<span class="keywordtype">void</span> *ptr);</div> |
| <div class="line">};</div> |
| </div><!-- fragment --> </div><hr/>The documentation for this class was generated from the following file:<ul> |
| <li>include/rapidjson/<a class="el" href="allocators_8h_source.html">allocators.h</a></li> |
| </ul> |
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| <div class="ttc" id="aclassrapidjson_1_1_allocator_html"><div class="ttname"><a href="classrapidjson_1_1_allocator.html">Allocator</a></div><div class="ttdoc">Concept for allocating, resizing and freeing memory block.</div></div> |
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