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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Wrong partial specialization used with -Wno-c++11-narrowing"
href="http://llvm.org/bugs/show_bug.cgi?id=16050">16050</a>
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<th>Summary</th>
<td>Wrong partial specialization used with -Wno-c++11-narrowing
</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>
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<th>OS</th>
<td>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>C++11
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>zilla@kayari.org
</td>
</tr>
<tr>
<th>CC</th>
<td>dgregor@apple.com, llvmbugs@cs.uiuc.edu
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>This compiles OK with -std=c++03
typedef unsigned long size_t;
template<class T, size_t N = -1>
struct X
{
T t[N];
};
template<class T>
struct X<T, -1>
{
T* t;
};
X<int> x;
But with -std=c++11 -Wno-c++11-narrowing I get:
t.cc:6:9: error: array is too large (18446744073709551615 elements)
T t[N];
^
t.cc:15:8: note: in instantiation of template class 'X<int,
18446744073709551615>' requested here
X<int> x;
^
1 error generated.
Shouldn't it behave like -std=c++03 when I disable the diagnostics for
narrowing?
Or at least be consistent in the treatment of the two -1 literals, so the
default template argument of -1 matches the partial specialization's argument
of -1</pre>
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