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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - dynamic_cast to void* regressed by r187564"
href="http://llvm.org/bugs/show_bug.cgi?id=17346">17346</a>
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<th>Summary</th>
<td>dynamic_cast to void* regressed by r187564
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>All
</td>
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>C++
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>reuben.morais@gmail.com
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<th>CC</th>
<td>dgregor@apple.com, llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
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<p>
<div>
<pre>r187564 regressed |dynamic_cast<void*>(foo);| when using |-fno-rtti|. The
standard says:
dynamic_cast<T>(v);
5.2.7p6:
Otherwise, v shall be a pointer to or an lvalue of a polymorphic type (10.3).
5.2.7p7:
If T is “pointer to cv void,” then the result is a pointer to the most derived
object pointed to by v. Otherwise, a run-time check is applied to see if the
object pointed or referred to by v can be converted to the type pointed or
referred to by T.
It sounds like Clang should not be erroring out in this case. This breaks
building Mozilla products.</pre>
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