rust armanriazi cast try_into unwrap

To convert a value from one type to another in Rust, you can use the try_into and unwrap functions. Here's an example:

use std::convert::TryInto;

fn main() {
    let num: i32 = 42;
    let num_str: Result<String, _> = num.try_into();
    let str_val: String = num_str.unwrap();
    println!("{}", str_val);
}

In this example, we have an i32 value 42 that we want to convert to a String. We use the try_into function to attempt the conversion, which returns a Result type. Then, we use the unwrap function to extract the String value from the Result if the conversion is successful. Finally, we print the String value.

Please note that the try_into function requires the TryInto trait to be in scope, which is why we import it with use std::convert::TryInto; at the beginning of the code.

I hope this helps! Let me know if you have any further questions.