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<base href="https://bugs.llvm.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - clang considers explicitly captured template member variables to be dependent"
href="https://bugs.llvm.org/show_bug.cgi?id=35195">35195</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>clang considers explicitly captured template member variables to be dependent
</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>All
</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>Frontend
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>marc@groundctl.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>Code is as follows:
struct foo {
template <int> void foo_fun();
};
template <int> struct bar {
foo* f;
void bar_fun() {
f->foo_fun<3>(); //Works
f->template foo_fun<3>(); // Works
[this]{
f->foo_fun<3>(); //Works
f->template foo_fun<3>(); // Works
};
[f=f]{
f->foo_fun<3>(); //Doesn't work
f->template foo_fun<3>(); // Works
};
}
};
In the last lambda, f is considered a dependent name, so f->foo_fun is
considered a value, not a template function, so f->foo_fun<3>() is parsed as
((f->foo_fun) < 3) > (), which fails since () isn't an expression. I believe f
isn't a dependent name since it doesn't depend on bar's (unnamed) template
parameter, it isn't considered dependent in bar itself (even when accessed in a
lambda via a captured this pointer), and this code is accepted by gcc, icc, and
msvc.</pre>
</div>
</p>
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