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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - fails to deduce template specialization in friend declaration"
href="https://bugs.llvm.org/show_bug.cgi?id=40238">40238</a>
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<th>Summary</th>
<td>fails to deduce template specialization in friend declaration
</td>
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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
</td>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>C++11
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>rhainin1@binghamton.edu
</td>
</tr>
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<th>CC</th>
<td>blitzrakete@gmail.com, dgregor@apple.com, erik.pilkington@gmail.com, llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
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<pre>clang fails to deduce that the friend declaration refers to ::func<int> in the
below
```
template <typename T>
void func(T);
class Cls {
friend void ::func(int);
};
```
Rejecting with:
```
error: out-of-line declaration of 'func' does not match any declaration in the
global namespace
friend void ::func(int);
^~~~
```
I believe this should be allowed by [temp.friend]/1.3:
<a href="http://eel.is/c++draft/temp.friend#1.3">http://eel.is/c++draft/temp.friend#1.3</a>
see discussion here: <a href="https://stackoverflow.com/q/54055575/1013719">https://stackoverflow.com/q/54055575/1013719</a></pre>
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