Daniel Barlow a8e9ab810c implement backward() ... this has meant changing the type signature of forward() so that it accepts the rover by reference not value, and making Facing a Copy type so that the direction passed to forward can also be returned in its output		2023-10-31 23:51:45 +00:00
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main.rs	implement backward()	2023-10-31 23:51:45 +00:00