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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - DR 458 not implemented?"
href="https://bugs.llvm.org/show_bug.cgi?id=39513">39513</a>
</td>
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<th>Summary</th>
<td>DR 458 not implemented?
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
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<th>Version</th>
<td>7.0
</td>
</tr>
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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>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>C++
</td>
</tr>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>zilla@kayari.org
</td>
</tr>
<tr>
<th>CC</th>
<td>dgregor@apple.com, llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
</td>
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<p>
<div>
<pre>DR 458 <a href="https://wg21.link/cwg458">https://wg21.link/cwg458</a> modified [temp.local] to clarify that names
from the enclosing class do not hide the template parameters of a member
template. Clang does not seem to follow that rule.
This is a modified version of the example in [temp.local] p7 (removing the
parameter of g for reasons):
template<class T> struct A {
struct B { /* ... */ };
typedef void C;
void f();
template<class U> void g();
};
template<class B> void A<B>::f() {
B b; // A's B, not the template parameter
}
template<class B> template<class C> void A<B>::g() {
B b; // A's B, not the template parameter
C c; // the template parameter C, not A's C
}
I get:
dr458.cc:14:5: error: variable has incomplete type 'A::C' (aka 'void')
C c; // the template parameter C, not A's C
^
1 error generated.
Using:
clang version 7.0.0 (<a href="https://git.llvm.org/git/clang.git">https://git.llvm.org/git/clang.git</a>
1a4f56e161a5ab24aa022f7e8a754e71fa5347a1) (<a href="https://git.llvm.org/git/llvm.git">https://git.llvm.org/git/llvm.git</a>
afb8c1fed21eb4848d86f2d28e9cb3afcfbb2656)</pre>
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