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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 - clang rejects valid C++ code with variable argument function"
href="https://llvm.org/bugs/show_bug.cgi?id=31002">bug 31002</a>
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<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">Status</td>
<td>NEW
</td>
<td>RESOLVED
</td>
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<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>INVALID
</td>
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - clang rejects valid C++ code with variable argument function"
href="https://llvm.org/bugs/show_bug.cgi?id=31002#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - clang rejects valid C++ code with variable argument function"
href="https://llvm.org/bugs/show_bug.cgi?id=31002">bug 31002</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>Per core issue 506, an implementation is required to either reject such code or
make it work:
[expr.call]/9: "Passing a potentially-evaluated argument of class type (Clause
9) having a non-trivial copy constructor, a non-trivial move constructor, or a
non-trivial destructor, with no corresponding parameter, is
conditionally-supported with implementation-defined semantics."
Clang chooses to reject.</pre>
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