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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Partial specialization after implicit/explicit instantiation of class template."
href="http://llvm.org/bugs/show_bug.cgi?id=21156">21156</a>
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<th>Summary</th>
<td>Partial specialization after implicit/explicit instantiation of class template.
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>C++
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>ant.bikineev@gmail.com
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<th>CC</th>
<td>dgregor@apple.com, llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
</td>
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=13137" name="attach_13137" title="Patch for this case">attachment 13137</a> <a href="attachment.cgi?id=13137&action=edit" title="Patch for this case">[details]</a></span>
Patch for this case
C++ [temp.class.spec]p.1 says, that:
"A partial specialization shall be declared before the first use of a class
template specialization that would make use of the partial specialization as
the result of an implicit or explicit instantiation in every translation unit
in which such a use occurs; no diagnostic is required."
GCC has diagnostic for this, while Clang just ignores it. I'm not sure,
probably Clang has its own politics in this case. I've attached a patch.</pre>
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