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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Error defining function specialization outside class body"
href="https://bugs.llvm.org/show_bug.cgi?id=51301">51301</a>
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<th>Summary</th>
<td>Error defining function specialization outside class body
</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>Windows NT
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
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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>fchelnokov@gmail.com
</td>
</tr>
<tr>
<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>
<div>
<pre>Clang refuses to accept valid code:
```
#include <concepts>
template<class T>
struct A { static void foo(); };
template<std::integral T>
struct A<T> { static void foo(); };
template<class T>
void A<T>::foo() {}
template<std::integral T>
void A<T>::foo() {}
int main() { A<int>::foo(); }
```
Clang prints the error <a href="https://gcc.godbolt.org/z/hYfYGPfMh">https://gcc.godbolt.org/z/hYfYGPfMh</a> :
```
error: type constraint differs in template redeclaration
template<std::integral T>
```</pre>
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