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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Ill-formed code?"
href="https://bugs.llvm.org/show_bug.cgi?id=37923">37923</a>
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<th>Summary</th>
<td>Ill-formed code?
</td>
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<th>Product</th>
<td>clang
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<th>Version</th>
<td>unspecified
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
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<th>Status</th>
<td>NEW
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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++
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>zhonghao@pku.org.cn
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<th>CC</th>
<td>dgregor@apple.com, llvm-bugs@lists.llvm.org
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<pre>The code is as follow:
template<typename T> __underlying_type(T) ft();
enum E {};
auto x = &ft<E>;
clang++ accepts the code, but g++ rejects it:
code2.c.cpp: In instantiation of '__underlying_type (T) ft() [with T = E]':
code2.c.cpp:1:43: sorry, unimplemented: mangling __underlying_type
template<typename T> __underlying_type(T) ft();
Shall clang also reject the code?</pre>
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