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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Compile fails when using enum declaration"
href="https://bugs.llvm.org/show_bug.cgi?id=52403">52403</a>
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<th>Summary</th>
<td>Compile fails when using enum declaration
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>13.0
</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
</td>
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<th>Component</th>
<td>C++2a
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>n.makhsudyan@yahoo.com
</td>
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<th>CC</th>
<td>blitzrakete@gmail.com, erik.pilkington@gmail.com, llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
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<pre>According to C++20 standard the following code is valid, however it doesn't
compile with clang13:
enum class Pig { Oink };
using Hog = Pig;
using enum Hog;
Output:
<source>:3:12: error: type alias 'Hog' cannot be referenced with a enum
specifier
using enum Hog;
^
<source>:2:7: note: declared here
using Hog = Pig;
^
1 error generated.
Compiler returned: 1
Obligatory godbolt link:
<a href="https://gcc.godbolt.org/z/413defY1q">https://gcc.godbolt.org/z/413defY1q</a></pre>
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