diff options
Diffstat (limited to 'src/doc/book/listings/ch10-generic-types-traits-and-lifetimes/listing-10-22')
3 files changed, 31 insertions, 0 deletions
diff --git a/src/doc/book/listings/ch10-generic-types-traits-and-lifetimes/listing-10-22/Cargo.lock b/src/doc/book/listings/ch10-generic-types-traits-and-lifetimes/listing-10-22/Cargo.lock new file mode 100644 index 000000000..e8007a19b --- /dev/null +++ b/src/doc/book/listings/ch10-generic-types-traits-and-lifetimes/listing-10-22/Cargo.lock @@ -0,0 +1,6 @@ +# This file is automatically @generated by Cargo. +# It is not intended for manual editing. +[[package]] +name = "chapter10" +version = "0.1.0" + diff --git a/src/doc/book/listings/ch10-generic-types-traits-and-lifetimes/listing-10-22/Cargo.toml b/src/doc/book/listings/ch10-generic-types-traits-and-lifetimes/listing-10-22/Cargo.toml new file mode 100644 index 000000000..489f80967 --- /dev/null +++ b/src/doc/book/listings/ch10-generic-types-traits-and-lifetimes/listing-10-22/Cargo.toml @@ -0,0 +1,6 @@ +[package] +name = "chapter10" +version = "0.1.0" +edition = "2021" + +[dependencies] diff --git a/src/doc/book/listings/ch10-generic-types-traits-and-lifetimes/listing-10-22/src/main.rs b/src/doc/book/listings/ch10-generic-types-traits-and-lifetimes/listing-10-22/src/main.rs new file mode 100644 index 000000000..836ec7295 --- /dev/null +++ b/src/doc/book/listings/ch10-generic-types-traits-and-lifetimes/listing-10-22/src/main.rs @@ -0,0 +1,19 @@ +// 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 + } +} |