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<base href="https://bugs.llvm.org/">
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - DLL import/export and explicit instantiation"
href="https://bugs.llvm.org/show_bug.cgi?id=32989">32989</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>DLL import/export and explicit instantiation
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Windows NT
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>C++
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>zahira.ammarguellat@intel.com
</td>
</tr>
<tr>
<th>CC</th>
<td>dgregor@apple.com, llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>ksh-3.2$ cat test.cpp
struct I;
template<typename T> struct __declspec(dllimport) X {
void f(T *p) { p->i(); }
void f(); // f is now overloaded.
};
template void X<I>::f(I*);
ksh-3.2$
ksh-3.2$ which cl
c:/Program files (x86)/Microsoft Visual Studio 14.0/VC/BIN/amd64/cl.EXE
ksh-3.2$ cl -c -Zi test.cpp
Microsoft (R) C/C++ Optimizing Compiler Version 19.00.24215.1 for x64
Copyright (C) Microsoft Corporation. All rights reserved.
test.cpp
ksh-3.2$ clang -v
clang version 5.0.0 (cfe/trunk 302180)
Target: x86_64-pc-windows-msvc
Thread model: posix
ksh-3.2$ clang -c -g test.cpp
test.cpp:3:19: error: member access into incomplete type 'I'
void f(T *p) { p->i(); }
^
test.cpp:6:21: note: in instantiation of member function 'X<I>::f' requested
here
template void X<I>::f(I*);
^
test.cpp:1:8: note: forward declaration of 'I'
struct I;
^
1 error generated.
ksh-3.2$</pre>
</div>
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