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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - warning: implicit conversion changes signedness: 'long' to 'int'"
href="http://llvm.org/bugs/show_bug.cgi?id=19442">19442</a>
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<th>Summary</th>
<td>warning: implicit conversion changes signedness: 'long' to 'int'
</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>Linux
</td>
</tr>
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<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>-New Bugs
</td>
</tr>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>magnus.reftel@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>Created <span class=""><a href="attachment.cgi?id=12381" name="attach_12381" title="Testcase">attachment 12381</a> <a href="attachment.cgi?id=12381&action=edit" title="Testcase">[details]</a></span>
Testcase
The below small testcase causes -Wsign-conversion to print a (to me)
nonsensical warning message: "warning: implicit conversion changes signedness:
'long' to 'int'".
void f(void)
{
unsigned int mask = 1;
long value = 1;
int result = value & mask;
}
The warning is correct in that there is an implicit sign conversion going on,
but it's not between (signed) long and (signed) int, like the warning message
says.
This message has been the same since at least 3.0.</pre>
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