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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Make Wmicrosoft-enum-value useful"
href="https://bugs.llvm.org/show_bug.cgi?id=33575">33575</a>
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<th>Summary</th>
<td>Make Wmicrosoft-enum-value useful
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
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<th>Version</th>
<td>unspecified
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>All
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</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>nicolasweber@gmx.de
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>enums in MS mode are signed, but unsigned elsewhere. So if you have an enum
with the highest bit set, it will be negative in MS mode but positive
elsewhere.
Wmicrosoft-enum-value currently flags those, but having these enums is very
common in practice, and only a problem when they are compared to 0.
So we should move the warning to comparison time.
<a href="https://bugs.chromium.org/p/chromium/issues/detail?id=621097#c2">https://bugs.chromium.org/p/chromium/issues/detail?id=621097#c2</a> has half a
patch for that.</pre>
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</p>
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