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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [-cxx-abi microsoft] Ctors for classes with vbases have is_most_derived as the second parameter instead of last"
href="http://llvm.org/bugs/show_bug.cgi?id=18233">18233</a>
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<th>Summary</th>
<td>[-cxx-abi microsoft] Ctors for classes with vbases have is_most_derived as the second parameter instead of last
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>unspecified
</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>
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<th>Severity</th>
<td>normal
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>LLVM Codegen
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>rnk@google.com
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<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
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<p>
<div>
<pre>LLVM's use of gtest exhibits this problem in convertible_fwd_ostream:
class convertible_fwd_ostream : public std::ostream {
virtual void anchor();
raw_os_ostream ros_;
public:
convertible_fwd_ostream(std::ostream& os)
: std::ostream(os.rdbuf()), ros_(*this) {}
operator raw_ostream&() { return ros_; }
};
LLVM uses the parameters this, is_most_derived, os, and MSVC uses this, os,
is_most_derived, resulting in the obvious crash.
Should be easy to fix.</pre>
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