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.