Nilstrieb aa35ab81ea Stabilize const BTree{Map,Set}::new
Since `len` and `is_empty` are not const stable yet, this also
creates a new feature for them since they previously used the same
`const_btree_new` feature.
2022-09-23 20:55:37 +02:00
..
2022-09-23 20:55:37 +02:00
2022-07-06 23:04:55 +02:00