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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - constexpr expression ends up as undefined symbol"
href="http://llvm.org/bugs/show_bug.cgi?id=15375">15375</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>constexpr expression ends up as undefined symbol
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>3.2
</td>
</tr>
<tr>
<th>Hardware</th>
<td>All
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>C++11
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>duvan.llvm@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>dgregor@apple.com, llvmbugs@cs.uiuc.edu
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Reduced testcase:
bug.cc:
#include <algorithm>
class Bug {
static constexpr unsigned max = 2;
public:
bool bug(int pos) { return pos < std::min(3u, max); }
};
int main() {
return Bug().bug(0);
}
<span class="quote">> Users/sduvan/Code/llvm-build/Release+Asserts/bin/clang -mmacosx-version-min=10.6 -std=c++11 -stdlib=libc++ -nostdinc++ -I/Users/sduvan/Code/libcxx/include -l c++ -L /Users/sduvan/Code/libcxx/lib -U__STRICT_ANSI__ -Wno-mismatched-tags -O3 -ggdb -DNG_LOGGING -Wl,-search_paths_first -headerpad_max_install_names CMakeFiles/bug.dir/bug.cc.o -o bug</span >
Undefined symbols for architecture x86_64:
"__ZN3Bug3maxE", referenced from:
_main in bug.cc.o
Note that replacing std::min with std::max will make this problem go away.</pre>
</div>
</p>
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