return tuple or null

To return a tuple or null in Rust, you can use the Option type. The Option type is an enumeration that represents either Some value or None. You can use it to handle cases where a value may or may not be present.

Here's an example of how to return a tuple or null using the Option type in Rust:

fn get_tuple_or_null() -> Option<(i32, i32)> {
    // Some condition to determine if a tuple should be returned
    let should_return_tuple = true;

    if should_return_tuple {
        // Return a tuple
        Some((1, 2))
    } else {
        // Return null
        None
    }
}

In this example, the get_tuple_or_null function returns an Option<(i32, i32)>. If the should_return_tuple condition is true, it returns Some((1, 2)), which is a tuple containing the values 1 and 2. If the condition is false, it returns None, indicating the absence of a value.

Please note that the specific implementation may vary depending on your use case. This is just a basic example to demonstrate the concept of returning a tuple or null in Rust.