<html>
<head>
<base href="https://bugs.llvm.org/">
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - clang-cl fails on reference to static constexpr member"
href="https://bugs.llvm.org/show_bug.cgi?id=37232">37232</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>clang-cl fails on reference to static constexpr member
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</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>steveire@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>dgregor@apple.com, llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>The following fails to link:
template<typename T>
struct A
{
static constexpr int binary = 2;
};
class __declspec(dllimport) Exporter
: public A<int>
{
};
void takeRef(const int& _Args)
{
}
int main()
{
takeRef(A<int>::binary);
return 1;
}
With the message:
simplemain.obj : error LNK2019: unresolved external symbol
"__declspec(dllimport) public: static int const A<int> ::binary"
This is a simplification of a smaller failing testcase:
#include <fstream>
#include <memory>
int main()
{
std::make_shared<std::ifstream>("test.txt", std::ios::binary);
return 1;
}</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are on the CC list for the bug.</li>
</ul>
</body>
</html>