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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 - Deleted copy/assign considered "trivial" by __has_trivial_{copy,assign}"
href="http://llvm.org/bugs/show_bug.cgi?id=18185">bug 18185</a>
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<table border="1" cellspacing="0" cellpadding="8">
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Status</td>
<td>NEW
</td>
<td>RESOLVED
</td>
</tr>
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<td style="text-align:right;">CC</td>
<td>
</td>
<td>richard-llvm@metafoo.co.uk
</td>
</tr>
<tr>
<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 - Deleted copy/assign considered "trivial" by __has_trivial_{copy,assign}"
href="http://llvm.org/bugs/show_bug.cgi?id=18185#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - Deleted copy/assign considered "trivial" by __has_trivial_{copy,assign}"
href="http://llvm.org/bugs/show_bug.cgi?id=18185">bug 18185</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>12.8 [class.copy]p12:
"A copy/move constructor for class X is trivial if it is not user-provided, its
parameter-type-list is equivalent to the parameter-type-list of an implicit
declaration, and if
— class X has no virtual functions (10.3) and no virtual base classes (10.1),
and
— class X has no non-static data members of volatile-qualified type, and
— the constructor selected to copy/move each direct base class subobject is
trivial, and
— for each non-static data member of X that is of class type (or array
thereof), the constructor selected to copy/move that member is trivial;
otherwise the copy/move constructor is non-trivial."
So S's copy constructor is trivial. And likewise its copy assignment operator
is trivial. If GCC says otherwise, then there's either a bug in GCC or a bug in
the standard.</pre>
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