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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 --- - Wrong "too few template arguments for class template""
href="http://llvm.org/bugs/show_bug.cgi?id=18783">18783</a>
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<tr>
<th>Summary</th>
<td>Wrong "too few template arguments for class template"
</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>
<tr>
<th>OS</th>
<td>Linux
</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++
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>marc.glisse@normalesup.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>(If we replace type_traits with boost, this is C++03)
#include <type_traits>
template<class,class> struct typeset;
template<class H=void, class T=typename
std::conditional<std::is_same<H,void>::value, void, typeset<void, void> >::type
>
struct typeset {
typedef typeset type;
};
template<> struct typeset<> {
typedef typeset type;
template<class X> struct add : typeset<X> {};
};
typedef typeset<>::add<int>::type XXX;
t.cc:11:34: error: too few template arguments for class template 'typeset'
template<class X> struct add : typeset<X> {};
^
t.cc:3:30: note: template is declared here
template<class,class> struct typeset;
~~~~~~~~~~~~~~~~~~~~~ ^
t.cc:14:9: error: no type named 'type' in 'typeset<void, void>::add<int>'; did
you mean 'typeset<>::type'?
typedef typeset<>::add<int>::type XXX;
^~~~~~~~~~~~~~~~~~~~~~~~~
typeset<>::type
t.cc:10:19: note: 'typeset<>::type' declared here
typedef typeset type;
^
Note that if I write ::typeset<X> (adding :: in front) it compiles.
Could be related to <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - too few template arguments for class template 'set'"
href="show_bug.cgi?id=10147">bug 10147</a>.</pre>
</div>
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