https://bugs.llvm.org/show_bug.cgi?id=41450
Bug ID: 41450
Summary: Invalid error "member reference base type "T" is not a
structure or union"
Product: clang
Version: trunk
Hardware: PC
OS: Windows NT
Status: NEW
Severity: enhancement
Priority: P
Component: C++'17
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected],
[email protected], [email protected]
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: https://wandbox.org/permlink/9ImPrkZ90K9ZM2QL
In order for the fragment above to work, the problem line should be rewritten
as follows:
Check c{range};
std::move(c).copy();
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