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<base href="http://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - False positive in sys/queue.h"
href="http://llvm.org/bugs/show_bug.cgi?id=15297">15297</a>
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<th>Summary</th>
<td>False positive in sys/queue.h
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
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<th>Version</th>
<td>3.2
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>All
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>Static Analyzer
</td>
</tr>
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<th>Assignee</th>
<td>kremenek@apple.com
</td>
</tr>
<tr>
<th>Reporter</th>
<td>pelle@morth.org
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=10038" name="attach_10038" title="Preprocessed file">attachment 10038</a> <a href="attachment.cgi?id=10038&action=edit" title="Preprocessed file">[details]</a></span>
Preprocessed file
This completely normal usage of the BSD sys/queue.h TAILQ becomes a false
positive in the remove line:
#include <stdlib.h>
#include <sys/queue.h>
struct foo
{
TAILQ_ENTRY(foo) link;
};
TAILQ_HEAD(, foo) queue;
int
main(int argc, char *argv[])
{
struct foo *el;
TAILQ_INIT(&queue);
el = malloc(sizeof (*el));
TAILQ_INSERT_TAIL(&queue, el, link);
el = malloc(sizeof (*el));
TAILQ_INSERT_TAIL(&queue, el, link);
while ((el = TAILQ_FIRST(&queue)))
{
TAILQ_REMOVE(&queue, el, link);
free(el);
}
return 0;
}</pre>
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