rust function

Sure, I'll provide a concise response without any additional sentences.

To define a function in Rust, you can use the fn keyword followed by the function name, parentheses for the input parameters, an arrow -> to specify the return type, and curly braces {} to enclose the function body. Here's an example:

fn add_numbers(a: i32, b: i32) -> i32 {
    let sum = a + b;
    sum
}

In this example, the function add_numbers takes two parameters a and b, both of type i32, and returns an i32. Inside the function body, the values of a and b are added together and stored in the sum variable. Finally, the value of sum is returned as the result of the function.

You can call this function by providing the necessary arguments, like this:

let result = add_numbers(5, 3);
println!("The result is: {}", result);

In this case, the value 5 is assigned to a, and 3 is assigned to b. The function returns the sum 8, which is then printed to the console.

That's how you define and call a simple function in Rust. Let me know if you have any further questions.