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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [ms] clang-cl fails to compile sample MDIDocVw from WTL (header atlframe.h)"
href="https://llvm.org/bugs/show_bug.cgi?id=27337">27337</a>
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<th>Summary</th>
<td>[ms] clang-cl fails to compile sample MDIDocVw from WTL (header atlframe.h)
</td>
</tr>
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<th>Product</th>
<td>clang
</td>
</tr>
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<th>Version</th>
<td>trunk
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Windows NT
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>Frontend
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>andrey.kuleshov@intel.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
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<pre>!- compilation of WTL example WTL/MDIDocVw fails with clang. MS can compile the
whole project without any errors.
These problems also appear during compilation of this sample:
26735
26748
-!
========Environment==============
Os: Win
Language: C++
Version: trunk
========Reproducer================
1) Download WTL from here: <a href="https://sourceforge.net/projects/wtl/">https://sourceforge.net/projects/wtl/</a> to [WTL_HOME]
2) Goto [WTL_HOME]/Samples/MDIDocVw
3) clang-cl -c -D "_UNICODE" -D "UNICODE" -I ../../include -w MDI.cpp
========Small Reproducer==========
/*code from include/atlframe.h*/
template <class T>
class CUpdateUI
{
public:
CUpdateUI()
{
T* pT = static_cast<T*>(this);
}
};
/*code from sample WTL/MDIDocVw (mainfrm.h )*/
class CMDIFrame : CUpdateUI<CMDIFrame>
{
public:
virtual int DoUpdate()
{
return 0;
}
};
/* default constructor is called in MDI.cpp*/
int main (){
CMDIFrame wndMain;
return 0;
}
=============Error==================
<span class="quote">>>> clang: </span >
error: cannot cast private base class 'CUpdateUI<CMDIFrame>' to 'CMDIFrame'
T* pT = static_cast<T*>(this);
^
note: in instantiation of member function 'CUpdateUI<CMDIFrame>::CUpdateUI'
requested here
class CMDIFrame : CUpdateUI<CMDIFrame>
^
note: implicitly declared private here
class CMDIFrame : CUpdateUI<CMDIFrame>
^~~~~~~~~~~~~~~~~~~~
<span class="quote">>>> msvc: no diag</span >
<span class="quote">>>> gcc: </span >
error: ‘CUpdateUI<CMDIFrame>’ is an inaccessible base of ‘CMDIFrame’
T* pT = static_cast<T*>(this);
Andrey Kuleshov
======
Software Engineer
Intel Compiler Team</pre>
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