| Issue |
107610
|
| Summary |
Clang crashes while generating operator<=>
|
| Labels |
clang
|
| Assignees |
|
| Reporter |
sabudilovskiy
|
```cpp
#include <compare>
#include <optional>
template <typename T>
struct box {
T* ptr = nullptr;
friend constexpr std::strong_ordering operator<=>(const box<T>& lhs, const box<T>& rhs) noexcept {
if (lhs.ptr && rhs.ptr) {
return *lhs.ptr <=> *rhs.ptr;
}
if (lhs.ptr) {
return std::strong_ordering::greater;
}
if (rhs.ptr) {
return std::strong_ordering::less;
}
return std::strong_ordering::equal;
}
friend bool operator==(const box<T>& lhs, const box<T>& rhs);
};
struct TreeNode {
std::optional<box<TreeNode>> children;
constexpr std::strong_ordering operator<=>(const TreeNode&) const;
};
constexpr std::strong_ordering TreeNode::operator<=>(const TreeNode&) const = default;
```
https://godbolt.org/z/71fenezqW
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