Create the function add_curry
, which returns a closure.
The purpose is to 'curry' the add method to create more variations.
Here is a program to test your function.
use adding::add_curry;
fn main() {
let add10 = add_curry(-10);
let add20 = add_curry(2066);
let add30 = add_curry(300000);
println!("{}", add10(5));
println!("{}", add20(195));
println!("{}", add30(5696));
}
And its output:
$ cargo run
-5
2261
305696
$