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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - `__has_feature(is_aggregate)` returns `false` even though `__is_aggregate` exists."
href="https://bugs.llvm.org/show_bug.cgi?id=37513">37513</a>
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<th>Summary</th>
<td>`__has_feature(is_aggregate)` returns `false` even though `__is_aggregate` exists.
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>5.0
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>All
</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
</td>
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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>mcypark@gmail.com
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<th>CC</th>
<td>dgregor@apple.com, llvm-bugs@lists.llvm.org
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<p>
<div>
<pre>The following program prints 1, indicating that `__has_feature(is_aggregate)`
returned `false`, even though `__is_aggregate` is defined.
```
#include <iostream>
#if __has_feature(is_aggregate)
#error feature
#endif
#if __has_extension(is_aggregate)
#error extension
#endif
struct Agg {};
int main() {
std::cout << __is_aggregate(Agg);
}
```
<a href="https://wandbox.org/permlink/mvOCKdmZGaxKoRAu">https://wandbox.org/permlink/mvOCKdmZGaxKoRAu</a></pre>
</div>
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