mirror of https://github.com/rust-lang/book
15 lines
378 B
Rust
15 lines
378 B
Rust
fn main() {
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let s1 = String::from("hello");
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let len = calculate_length(&s1);
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println!("The length of '{s1}' is {len}.");
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}
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// ANCHOR: here
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fn calculate_length(s: &String) -> usize { // s is a reference to a String
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s.len()
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} // Here, s goes out of scope. But because it does not have ownership of what
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// it refers to, it is not dropped.
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// ANCHOR_END: here
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