| 580 | void map_if_insertion_operator(const Args &...) {} |
| 581 | template <typename, typename, typename... Args> |
| 582 | void map_assignment(const Args &...) {} |
| 583 | |
| 584 | // Map assignment when copy-assignable: just copy the value |
| 585 | template <typename Map, typename Class_> |