| 278 | // Less-than comparison (for use in ordered containers) |
| 279 | template<typename U> |
| 280 | constexpr bool operator<(const not_null<U>& other) const FL_NOEXCEPT { |
| 281 | return mPtr < other.get(); |
| 282 | } |
| 283 | |
| 284 | // Less-than-or-equal comparison |
| 285 | template<typename U> |