Pass mutable reference of integer to function
fn increment(x: &mut i32) {
*x += 1;
}
fn main() {
let mut a = 1;
println!("{a}");
increment(&mut a);
println!("{a}");
}1
2
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fn increment(x: &mut i32) {
*x += 1;
}
fn main() {
let mut a = 1;
println!("{a}");
increment(&mut a);
println!("{a}");
}1
2