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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 --- - Spurious warning from Wformat-extra-args"
href="http://llvm.org/bugs/show_bug.cgi?id=20963">20963</a>
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</tr>
<tr>
<th>Summary</th>
<td>Spurious warning from Wformat-extra-args
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>3.4
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>Frontend
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>hyc@symas.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>violino:/tmp/clang> cat bug.c
#include <stdio.h>
int main(int argc, char *argv[]) {
printf(argc > 1 ? "%s %s\n" : "%s\n", argv[0], argv[1]);
}
violino:/tmp/clang> clang -c bug.c
bug.c:4:47: warning: data argument not used by format string
[-Wformat-extra-args]
printf(argc > 1 ? "%s %s\n" : "%s\n", argv[0], argv[1]);
~~~~~~ ^
1 warning generated.
gcc (correctly) does not complain.</pre>
</div>
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