Code shared from the Rust Playground

playground.rs

fn call<F>(a: i64, b: i64, c: F) -> i64 where F: Fn(i64, i64) -> i64 {
    c(a, b)
}

fn main() {
    println!("{}", call(10, 10, |a, b| a + b));
    println!("{}", call(20, 10, |a, b| a - b));
    println!("{}", call(30, 10, |a, b| a * b));
    println!("{}", call(40, 10, |a, b| a / b));
}