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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - __attribute__((returns_nonnull)) does not work for std::add_pointer_t<T>"
href="https://llvm.org/bugs/show_bug.cgi?id=25306">25306</a>
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<th>Summary</th>
<td>__attribute__((returns_nonnull)) does not work for std::add_pointer_t<T>
</td>
</tr>
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<th>Product</th>
<td>clang
</td>
</tr>
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<th>Version</th>
<td>3.7
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Windows NT
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>Frontend
</td>
</tr>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>frankhb1989@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Case:
// clang++ -std=c++14 a.cc
#include <type_traits>
template<typename T>
__attribute__((returns_nonnull)) std::add_pointer_t<T> t()
{
static T obj;
return &obj;
}
int main()
{}
Diagnostics:
a.cc:4:16: warning: 'returns_nonnull' attribute only applies to return values
that are pointers
[-Wignored-attributes]
__attribute__((returns_nonnull)) std::add_pointer_t<T> t()
On the other hand, G++ works.</pre>
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