<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 --- - typeof rejects initialiser expression"
href="https://llvm.org/bugs/show_bug.cgi?id=25315">25315</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>typeof rejects initialiser expression
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>3.7
</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>Frontend
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>michael@araneidae.co.uk
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>The following code:
extern void *blah(void *arg);
const void *test2(const void *arg)
{
return blah( ( {
union {
typeof((*(const void * []) { (arg) })) _value;
void * _cast;
} _union;
_union._value = ((*(const void * []) { (arg) }));
_union._cast;
} ) );
}
generates the error:
test.c:7:43: error: initializer element is not a compile-time constant
typeof((*(const void * []) { (arg) })) _value;
^~~
1 error generated.
This code compiles just fine with gcc, and if the typeof(...) expression is
replaced (with const void *) clang compiles this ok as well.
By the way, <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - clang rejects nested struct-member-access-typeof"
href="show_bug.cgi?id=11299">bug #11299</a> looks related, but I can't say if it really is.</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>