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<base href="https://bugs.llvm.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - ARC/C++/C conflict with structs with unions"
href="https://bugs.llvm.org/show_bug.cgi?id=43301">43301</a>
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<th>Summary</th>
<td>ARC/C++/C conflict with structs with unions
</td>
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<th>Product</th>
<td>clang
</td>
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<tr>
<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Windows NT
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>enhancement
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>C++11
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>compnerd@compnerd.org
</td>
</tr>
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<th>CC</th>
<td>blitzrakete@gmail.com, dgregor@apple.com, erik.pilkington@gmail.com, llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
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<p>
<div>
<pre>Consider the following:
```
// RUN: %clang_cc1 -std=c++11 -fblocks -fobjc-runtime=ios-7.0 -fobjc-arc -x
objective-c++ %s -fsyntax-only
struct {
union {
void (^g)(void);
};
} s;
```
This results in:
error: call to implicitly-deleted default constructor of 'struct (anonymous
struct at %s:1:1)'
Wrapping the structure in `extern "C"` is also insufficient to enable the stack
allocation of this type. This type was reduced from `glob_t` in `glob.h`.</pre>
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