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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Analyser gives a false positive because it assumes errno can give a zero result after a failing function call."
href="http://llvm.org/bugs/show_bug.cgi?id=20102">20102</a>
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<th>Summary</th>
<td>Analyser gives a false positive because it assumes errno can give a zero result after a failing function call.
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>3.4
</td>
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<th>Hardware</th>
<td>All
</td>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Static Analyzer
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<th>Assignee</th>
<td>kremenek@apple.com
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<th>Reporter</th>
<td>sstewartgallus00@mylangara.bc.ca
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<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
</td>
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=12694" name="attach_12694" title="The source that gives the false positive">attachment 12694</a> <a href="attachment.cgi?id=12694&action=edit" title="The source that gives the false positive">[details]</a></span>
The source that gives the false positive
Attached is code that gives a false positive when compiled with "clang
--analyze -Xclang -analyzer-output=text -o- -std=c99 static-analyzer.c
-DNDEBUG".
Clang should be able to tell that right after a failing function call errno can
never be zero.</pre>
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