Rust: What is the difference between rotate_left and rotate_right?

rotate_left — shift left. rotate_right — shift right.

rotate_left:

• Elements move left.
• First elements go to end.
• In-place.

rotate_right:

• Elements move right.
• Last elements go to front.
• In-place.

1let mut v = vec![1, 2, 3, 4, 5];
2
3v.rotate_left(2);
4// [3, 4, 5, 1, 2]
5
6let mut v = vec![1, 2, 3, 4, 5];
7v.rotate_right(2);
8// [4, 5, 1, 2, 3]

Key: rotate_left shifts left, rotate_right shifts right.