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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - False positive: garbage array value"
href="http://llvm.org/bugs/show_bug.cgi?id=19725">19725</a>
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<th>Summary</th>
<td>False positive: garbage array value
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
</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>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Static Analyzer
</td>
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<th>Assignee</th>
<td>kremenek@apple.com
</td>
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<th>Reporter</th>
<td>daniel.marjamaki@evidente.se
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Example code:
void f(const unsigned char n) {
int buf[2][4] = {{0,0,0,0},{0,0,0,0}};
unsigned char j,k,l,x;
for (l = n - 1; l >= 1; l--)
x = 0;
for (j = n - 1; j >= 1; j--) {
for (k = 0; k <= j - 1; k++)
x = buf[k][j];
}
}
I get this false positive:
clang-uninit-fp.c:12:15: warning: Assigned value is garbage or undefined
x = buf[k][j];
But as far as I can tell, buf data is completely initialized.</pre>
</div>
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