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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - False memory leak report involving self-deleting object"
href="https://bugs.llvm.org/show_bug.cgi?id=36290">36290</a>
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<th>Summary</th>
<td>False memory leak report involving self-deleting object
</td>
</tr>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>6.0
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Static Analyzer
</td>
</tr>
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<th>Assignee</th>
<td>dcoughlin@apple.com
</td>
</tr>
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<th>Reporter</th>
<td>jakob.leben@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=19836" name="attach_19836" title="Example code that generates false memory leak report">attachment 19836</a> <a href="attachment.cgi?id=19836&action=edit" title="Example code that generates false memory leak report">[details]</a></span>
Example code that generates false memory leak report
The attached example reports a potential memory leak:
$ scan-build-6.0 clang++-6.0 -std=c++14 example.cpp
example.cpp:19:1: warning: Potential leak of memory pointed to by 'p'
}
^
I believe there is no memory leak in this example though.
The example exhibits a pattern sometimes used in smart pointer implementations,
such as Poco::AutoPtr:
<a href="https://pocoproject.org/docs/Poco.AutoPtr.html">https://pocoproject.org/docs/Poco.AutoPtr.html</a>
I believe the same issue in the static analyzer causes memory leak and
null-pointer dereference warnings when using Poco::AutoPtr.</pre>
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