<html>
<head>
<base href="https://llvm.org/bugs/" />
</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 --- - Unexpected instantiation when using type-alias and sizeof..." href="https://urldefense.proofpoint.com/v2/url?u=https-3A__llvm.org_bugs_show-5Fbug.cgi-3Fid-3D24176&d=AwMBaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=pF93YEPyB-J_PERP4DUZOJDzFVX5ZQ57vQk33wu0vio&m=ZV0RERs5ubLJv_1g-LzzijYM0mcLqzaxhG1YEfKLvBg&s=3Ncx_p7zpfwlnmDh_TPYsdOssEEeg3WbZEA5mogZRzw&e=">24176</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Unexpected instantiation when using type-alias and sizeof...
</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>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>-New Bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>tomasz.miasko@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Clang incorrectly decides to instantiate array<1> in a following code:
template<int S>
struct array {
static_assert(S != 1);
};
template<typename... Ts>
using array_u = array<sizeof...(Ts)>;
template <typename ...Ts>
void f()
{
array_u<Ts...> a1;
}
This results in following error message:
a.C:3:3: error: static_assert failed
static_assert(S != 1);
^ ~~~~~~
a.C:12:18: note: in instantiation of template class 'array<1>' requested here
array_u<Ts...> a1;
^
1 error generated.</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>