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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 --- - No -Wuninitialized warning on uninitialized array element."
href="http://llvm.org/bugs/show_bug.cgi?id=22318">22318</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>No -Wuninitialized warning on uninitialized array element.
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Windows NT
</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>
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<th>Component</th>
<td>Frontend
</td>
</tr>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>chengniansun@gmail.com
</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>$: cat s.c
int f1() {
int arr[2][2];
return arr[0][0];
}
int f2() {
int a;
return a;
}
$:
$: clang-trunk -c -Weverything -Wno-missing-prototypes s.cs.c:8:10: warning:
variable 'a' is uninitialized when used here
[-Wuninitialized]
return a;
^
s.c:7:8: note: initialize the variable 'a' to silence this warning
int a;
^
= 0
1 warning generated.
$:
$: gcc-trunk -c -Wall s.c
s.c: In function ‘f1’:
s.c:3:10: warning: ‘arr[0][0]’ is used uninitialized in this function
[-Wuninitialized]
return arr[0][0];
^
s.c: In function ‘f2’:
s.c:8:10: warning: ‘a’ is used uninitialized in this function [-Wuninitialized]
return a;
^
$:</pre>
</div>
</p>
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