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<base href="http://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - "incomplete" error message when trying to use a pointer with no linkage as a template argument"
href="http://llvm.org/bugs/show_bug.cgi?id=16159">16159</a>
</td>
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<tr>
<th>Summary</th>
<td>"incomplete" error message when trying to use a pointer with no linkage as a template argument
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</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>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
</tr>
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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>rafael.espindola@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>dgregor@apple.com, llvmbugs@cs.uiuc.edu
</td>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Given
template <int *I> void foo() {}
void *zed() {
static int X;
foo<&X>();
}
we say
----------------------------------------------------------
test.cpp:4:3: error: no matching function for call to 'foo'
foo<&X>();
^~~~~~~
test.cpp:1:24: note: candidate template ignored: invalid explicitly-specified
argument for template parameter 'I'
template <int *I> void foo() {}
---------------------------------------------------------
gcc trunk says
------------------------------------------------
/home/espindola/llvm/test.cpp: In function ‘void* zed()’:
/home/espindola/llvm/test.cpp:4:11: error: ‘& X’ is not a valid template
argument of type ‘int*’ because ‘X’ has no linkage
foo<&X>();
^
/home/espindola/llvm/test.cpp:4:11: error: no matching function for call to
‘foo()’
/home/espindola/llvm/test.cpp:4:11: note: candidate is:
/home/espindola/llvm/test.cpp:1:24: note: template<int* I> void foo()
template <int *I> void foo() {}
^
/home/espindola/llvm/test.cpp:1:24: note: substitution of deduced template
arguments resulted in errors seen above
-------------------------------------------------------
Saying something about &X being invalid for not having linkage makes the error
a lot easier to understand.</pre>
</div>
</p>
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