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New upstream version 1.63.0+dfsg1
[rustc.git] / src / doc / book / listings / ch10-generic-types-traits-and-lifetimes / listing-10-23 / src / main.rs
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1// ANCHOR: here
2fn main() {
3 let string1 = String::from("long string is long");
923072b8 4 let result;
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5 {
6 let string2 = String::from("xyz");
923072b8 7 result = longest(string1.as_str(), string2.as_str());
74b04a01 8 }
923072b8 9 println!("The longest string is {}", result);
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10}
11// ANCHOR_END: here
12
13fn longest<'a>(x: &'a str, y: &'a str) -> &'a str {
14 if x.len() > y.len() {
15 x
16 } else {
17 y
18 }
19}