<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 - -Wuninitialized for struct assignment from GNU C statement expression"
href="https://bugs.llvm.org/show_bug.cgi?id=42604">42604</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>-Wuninitialized for struct assignment from GNU C statement expression
</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>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>C
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>ndesaulniers@google.com
</td>
</tr>
<tr>
<th>CC</th>
<td>arnd@linaro.org, blitzrakete@gmail.com, dgregor@apple.com, erik.pilkington@gmail.com, llvm-bugs@lists.llvm.org, natechancellor@gmail.com, richard-llvm@metafoo.co.uk, srhines@google.com
</td>
</tr></table>
<p>
<div>
<pre>Consider the following example:
void init(int*);
void foo(void) {
int i = ({
init(&i);
i;
});
}
struct widget {
int x, y;
};
void init2(struct widget*);
void bar(void) {
struct widget my_widget = ({
init2(&my_widget);
my_widget;
});
}
warning: variable 'my_widget' is uninitialized when used within its own
initialization [-Wuninitialized]
It seems like it's ok to do so for non-aggregate types, but aggregates issue
the warning. I think it should not be a warning here?</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>