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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Invalid error "member reference base type "T" is not a structure or union""
href="https://bugs.llvm.org/show_bug.cgi?id=41450">41450</a>
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<th>Summary</th>
<td>Invalid error "member reference base type "T" is not a structure or union"
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Windows NT
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>C++'17
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>kyrylo.bohdanenko@gmail.com
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<th>CC</th>
<td>blitzrakete@gmail.com, erik.pilkington@gmail.com, llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
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<p>
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<pre>Consider the following code:
template <typename T>
struct Check {
explicit Check(T) {}
auto copy() const { return *this; }
};
int main() {
static_cast<void>([](const auto& range) {
Check{range}.copy();
});
}
Clang issues an error:
prog.cc:9:17: error: member reference base type 'Check' is not a structure or
union
Check{range}.copy();
~~~~~~~~~~~~^~~~~
The error is clearly invalid. The code should be compilable.
Sandbox is available on Wandbox: <a href="https://wandbox.org/permlink/9ImPrkZ90K9ZM2QL">https://wandbox.org/permlink/9ImPrkZ90K9ZM2QL</a>
In order for the fragment above to work, the problem line should be rewritten
as follows:
Check c{range};
std::move(c).copy();</pre>
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