Suppose we have:
arr: Vec<(K, V)>;
i: usize;
v_new: V
Now, I can update the vec via:
let t = &mut arr[i];
t.1 = v_new;
However, I am wondering if there is a simpler way to do this.
Suppose we have:
arr: Vec<(K, V)>;
i: usize;
v_new: V
Now, I can update the vec via:
let t = &mut arr[i];
t.1 = v_new;
However, I am wondering if there is a simpler way to do this.
Just something like t[0].1 = v_new
works for me:
fn test<K, V>(a: K, b: V, c: V) -> Vec<(K, V)> {
let mut t: Vec<(K, V)> = Vec::new();
t.push((a, b));
t[0].1 = c;
t
}
fn main() {
println!("{:?}", test(1, 2, 3));
}
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