<html>
<head>
<base href="https://bugs.llvm.org/">
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Conversion to ambiguous/inaccessible rvalue base is valid in evaluated context"
href="https://bugs.llvm.org/show_bug.cgi?id=51662">51662</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Conversion to ambiguous/inaccessible rvalue base is valid in evaluated context
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Keywords</th>
<td>accepts-invalid
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>C++2a
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>johelegp@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>blitzrakete@gmail.com, erik.pilkington@gmail.com, johelegp@gmail.com, llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
</td>
</tr></table>
<p>
<div>
<pre>See <a href="https://godbolt.org/z/5744Ee69o">https://godbolt.org/z/5744Ee69o</a>. See also
<a class="bz_bug_link
bz_status_NEW "
title="NEW - Conversion to ambiguous/inaccessible rvalue base is valid in unevaluated context"
href="show_bug.cgi?id=37691">https://bugs.llvm.org/show_bug.cgi?id=37691</a>.
```C++
template <class To, class From>
concept is_static_castable = requires(From&& (*from)()) {
static_cast<To>(from()); };
struct B { };
struct D : B { };
struct D2 : D , B { };
struct D3 : private B { };
void f()
{
D2 d2;
(void)static_cast<B&&>(d2); // no error
D3 d3;
(void)static_cast<B&&>(d3); // no error
}
```</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are on the CC list for the bug.</li>
</ul>
</body>
</html>