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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - clang C++ partial specialization of nested template (reject valid)"
href="http://llvm.org/bugs/show_bug.cgi?id=20570">20570</a>
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<th>Summary</th>
<td>clang C++ partial specialization of nested template (reject valid)
</td>
</tr>
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<th>Product</th>
<td>clang
</td>
</tr>
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<th>Version</th>
<td>3.4
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>C++
</td>
</tr>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>reagentoo@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>dgregor@apple.com, llvmbugs@cs.uiuc.edu
</td>
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<th>Classification</th>
<td>Unclassified
</td>
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<p>
<div>
<pre>Bug appears when you try to specialize template within another template.
Minimal snippet:
=============================
template <class>
struct Foo
{
template <class>
struct Bar;
};
template <class T>
template <>
struct Foo<T>::Bar<int>
{};
=============================
However, if you add an one additional (undeductional) parameter in the
specialization, the code is compiled. "template <class>" instead of "template
<>".
Minimal snippet (is working):
=============================
template <class>
struct Foo
{
template <class>
struct Bar;
};
template <class T>
template <class>
struct Foo<T>::Bar<int>
{};
=============================</pre>
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