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<body><span class="vcard"><a class="email" href="mailto:richard-llvm@metafoo.co.uk" title="Richard Smith <richard-llvm@metafoo.co.uk>"> <span class="fn">Richard Smith</span></a>
</span> changed
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - imprecise diagnostic for nested unnamed type as anonymous union member"
href="https://bugs.llvm.org/show_bug.cgi?id=46726">bug 46726</a>
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Summary</td>
<td>Clang rejects valid code with "anonymous types declared in an anonymous union are an extension"
</td>
<td>imprecise diagnostic for nested unnamed type as anonymous union member
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<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>INVALID
</td>
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<td style="text-align:right;">Status</td>
<td>NEW
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<td>RESOLVED
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - imprecise diagnostic for nested unnamed type as anonymous union member"
href="https://bugs.llvm.org/show_bug.cgi?id=46726#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - imprecise diagnostic for nested unnamed type as anonymous union member"
href="https://bugs.llvm.org/show_bug.cgi?id=46726">bug 46726</a>
from <span class="vcard"><a class="email" href="mailto:richard-llvm@metafoo.co.uk" title="Richard Smith <richard-llvm@metafoo.co.uk>"> <span class="fn">Richard Smith</span></a>
</span></b>
<pre>Well, Clang doesn't claim that the inner union is an anonymous union, only that
it's an anonymous type, which it is. But that's really irrelevant; nested types
are not allowed at all in this context, and that's what we should be
diagnosing. So the issue is only that the diagnostic is imprecise; it is still
correct and this code is invalid. See
<a href="http://eel.is/c++draft/class.union.anon#1.sentence-3">http://eel.is/c++draft/class.union.anon#1.sentence-3</a></pre>
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