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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - gnu extension "?:" with enums not faithful"
href="http://llvm.org/bugs/show_bug.cgi?id=15626">15626</a>
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<th>Summary</th>
<td>gnu extension "?:" with enums not faithful
</td>
</tr>
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<th>Product</th>
<td>clang
</td>
</tr>
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<th>Version</th>
<td>3.2
</td>
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<th>Hardware</th>
<td>All
</td>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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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>C++
</td>
</tr>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>ggreif@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>dgregor@apple.com, llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>$ clang gnutest.cc
gnutest.cc:7:10: error: cannot initialize return object of type 'Howdy' with an
rvalue of type 'int'
return you ?: Hi;
^~~~~~~~~
1 error generated.
This works nicely with g++ (v3.4 and v4.4). I guess clang models this as
> int temp = you;
> return temp ? temp : Hi;
while g++ does:
> Howdy temp = you;
> return temp ? temp : Hi;
The test program is:
$ cat gnutest.cc
enum Howdy {
Lo, Hi
};
Howdy test(Howdy you)
{
return you ?: Hi;
}</pre>
</div>
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