rustHow to copy struct in Rust
Copying a struct in Rust is done using the clone() method. This method creates a deep copy of the struct, meaning that all fields are copied as well.
Example
#[derive(Clone, Debug)]
struct Point {
x: i32,
y: i32,
}
fn main() {
let p1 = Point { x: 1, y: 2 };
let p2 = p1.clone();
println!("p1: {:?}", p1);
println!("p2: {:?}", p2);
}
Output example
p1: Point { x: 1, y: 2 }
p2: Point { x: 1, y: 2 }
Code explanation
#[derive(Clone, Debug)]: This line is necessary for theclone()method to work. It derives theCloneandDebugtraits for thePointstruct.let p1 = Point { x: 1, y: 2 };: This line creates aPointstruct with the fieldsxandyset to1and2respectively.let p2 = p1.clone();: This line creates a deep copy of thePointstructp1and stores it inp2.println!("p1: {:?}", p1);: This line prints thePointstructp1to the console.println!("p2: {:?}", p2);: This line prints thePointstructp2to the console.
Helpful links
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