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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Templates in Microsoft Mode do not allow casting from one type to another"
href="http://llvm.org/bugs/show_bug.cgi?id=16851">16851</a>
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<th>Summary</th>
<td>Templates in Microsoft Mode do not allow casting from one type to another
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>PC
</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>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>C++
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>david.majnemer@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>dgregor@apple.com, llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>We should allow the following but we do not:
template <const void *>
struct foo {
};
extern const int x;
foo<(const void *)&x> a;
foo<&x> b;
foo<((const void *)&x)> c;
instead, we claim:
<stdin>:6:5: error: non-type template argument does not refer to any
declaration
foo<(const void *)&x> a;
^~~~~~~~~~~~~~~~
<stdin>:1:23: note: template parameter is declared here
template <const void *>
^
<stdin>:7:6: error: non-type template argument of type 'const int *' cannot be
converted to a value of type 'const void *'
foo<&x> b;
^
<stdin>:1:23: note: template parameter is declared here
template <const void *>
^
<stdin>:8:5: warning: address non-type template argument cannot be surrounded
by parentheses
foo<((const void *)&x)> c;
^~~~~~~~~~~~~~~~~~
<stdin>:8:6: error: non-type template argument does not refer to any
declaration
foo<((const void *)&x)> c;
^~~~~~~~~~~~~~~~
<stdin>:1:23: note: template parameter is declared here
template <const void *>
^
1 warning and 3 errors generated</pre>
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