TheClone trait for types that cannot be ‘implicitly copied’.

In Rust, some simple types are “implicitly copyable” and when youassign them or pass them as arguments, the receiver will get a copy,leaving the original value in place. These types do not requireallocation to copy and do not have finalizers (i.e., they do notcontain owned boxes or implementDrop), so the compiler considersthem cheap and safe to copy. For other types copies must be madeexplicitly, by convention implementing theClone trait and callingtheclone method.

Basic usage example:

lets = String::new();// String type implements Cloneletcopy = s.clone();// so we can clone it

To easily implement the Clone trait, you can also use#[derive(Clone)]. Example:

#[derive(Clone)]// we add the Clone trait to Morpheus structstructMorpheus {   blue_pill: f32,   red_pill: i64,}fnmain() {letf = Morpheus { blue_pill:0.0, red_pill:0};letcopy = f.clone();// and now we can clone it!}