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<base href="http://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Can't C-style cast from template Objective-C++ class to Objective-C pointer although explicit conversion operator defined"
href="http://llvm.org/bugs/show_bug.cgi?id=17922">17922</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Can't C-style cast from template Objective-C++ class to Objective-C pointer although explicit conversion operator defined
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Macintosh
</td>
</tr>
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<th>OS</th>
<td>MacOS X
</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>dfarler@apple.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>template<typename T> struct RetainPtr {
explicit operator T*() const;
};
@interface A
- (void)b;
@end
@interface B : A
- (void)c;
@end
void f(RetainPtr<A> a)
{
[a b];
[(B *)a c];
}
Yields:
error: cannot convert 'RetainPtr<A>' to 'B *' without a conversion operator
[(B *)a c];
^~~~~~
1 error generated.</pre>
</div>
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