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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 - Redefinition of identical typedefs fails"
href="http://llvm.org/bugs/show_bug.cgi?id=18564">bug 18564</a>
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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>
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<td style="text-align:right;">CC</td>
<td>
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<td>richard-llvm@metafoo.co.uk
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<td style="text-align:right;">Resolution</td>
<td>---
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<td>INVALID
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - Redefinition of identical typedefs fails"
href="http://llvm.org/bugs/show_bug.cgi?id=18564#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - Redefinition of identical typedefs fails"
href="http://llvm.org/bugs/show_bug.cgi?id=18564">bug 18564</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>Two different struct definitions do not define the same type: C11 6.7.2.1/8:
"The presence of a struct-declaration-list in a struct-or-union-specifier
*declares a new type*, within a translation unit."
They don't even define compatible types if they're defined in the same
translation unit: C11 6.2.7/1: "Moreover, two structure, union, or enumerated
types *declared in separate translation units* are compatible if [...]".
Therefore Clang is correct here, aside from incorrectly naming the type as
'struct ab' both times.</pre>
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