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<base href="http://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - clang incorrectly deduces template parameter pack"
href="http://llvm.org/bugs/show_bug.cgi?id=21536">21536</a>
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<th>Summary</th>
<td>clang incorrectly deduces template parameter pack
</td>
</tr>
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<th>Product</th>
<td>clang
</td>
</tr>
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<th>Version</th>
<td>3.5
</td>
</tr>
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<th>Hardware</th>
<td>All
</td>
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<th>OS</th>
<td>All
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>C++11
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>hui.li@me.com
</td>
</tr>
<tr>
<th>CC</th>
<td>dgregor@apple.com, llvmbugs@cs.uiuc.edu
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Clang 3.5 is unable to compile the following code:
template < typename, typename... >
struct X {};
template < typename... T >
void foo(const X<T...>&)
{}
int main()
{
X<int,int> x;
foo(x);
}
The error I got reads:
t.cpp:11:4: error: no matching function for call to 'foo'
foo(x);
^~~
t.cpp:5:6: note: candidate template ignored: substitution failure [with T =
<>]: too few template arguments for class template 'X'
void foo(const X<T...>&)
^ ~
1 error generated.
GCC 4.8.3 is able to compile this code.</pre>
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