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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - variable template not default initialized"
href="http://llvm.org/bugs/show_bug.cgi?id=22825">22825</a>
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<th>Summary</th>
<td>variable template not default initialized
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
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<th>Version</th>
<td>3.5
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>C++14
</td>
</tr>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>camorton2@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>// clang reports this as a link error, val is not defined
template<class A> A val ;
void init()
{
val<int> = 55;
}
int main(void)
{
init(); // without init should it be 0?
return val<int>;
}
My guess is that without the call to init it should be default initialized to
0.
tmp/ex9-b3b6e9.o:(.toc+0x0): undefined reference to `val<int>'
clang: error: linker command failed with exit code 1 (use -v to see invocation)
any variable template without an explicit initializer gives a linker error
If the type is a class type there is no diagnostic check to ensure there is a
default constructor, and there is no call to the default constructor.</pre>
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</p>
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