book/listings/ch10-generic-types-traits-a.../listing-10-22/src/main.rs

20 lines
400 B
Rust

// ANCHOR: here
fn main() {
let string1 = String::from("long string is long");
{
let string2 = String::from("xyz");
let result = longest(string1.as_str(), string2.as_str());
println!("The longest string is {result}");
}
}
// ANCHOR_END: here
fn longest<'a>(x: &'a str, y: &'a str) -> &'a str {
if x.len() > y.len() {
x
} else {
y
}
}