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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Can't access private static variable template from a friend class, in the type of a static variable template"
href="https://bugs.llvm.org/show_bug.cgi?id=51134">51134</a>
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<th>Summary</th>
<td>Can't access private static variable template from a friend class, in the type of a static variable template
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>12.0
</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>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>blckcat@inbox.ru
</td>
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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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<p>
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<pre>Example code:
```
class A
{
friend struct B;
template <typename>
static constexpr int x = 42;
};
struct B
{
template <typename U>
static constexpr decltype(A::template x<U>) y = 43;
};
int main()
{
(void)B::y<int>;
}
```
This gives me `error: 'x' is a private member of 'A'`.
Removing template-ness from either variable fixes the issue. Accessing `x` from
the initializer of `y` (rather than from its type) also works.</pre>
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