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diff --git a/src/doc/book/redirects/references-and-borrowing.md b/src/doc/book/redirects/references-and-borrowing.md new file mode 100644 index 000000000..7eb8da2bd --- /dev/null +++ b/src/doc/book/redirects/references-and-borrowing.md @@ -0,0 +1,24 @@ +% References and Borrowing + +<small>There is a new edition of the book and this is an old link.</small> + +> A reference _refers_ to a value but does not own it. +> Because it does not own it, the value it points to will not be dropped when the reference goes out of scope. + +```rust +fn calculate_length(s: &String) -> usize { // s is a reference to a String + s.len() +} // Here, s goes out of scope. But because it does not have ownership of what + // it refers to, nothing happens. +``` + +--- + +Here are the relevant sections in the new and old books: + +* **[in the current edition: Ch 4.02 — References and Borrowing][2]** +* <small>[In the first edition: Ch 3.9 — References and Borrowing][1]</small> + + +[1]: https://doc.rust-lang.org/1.30.0/book/first-edition/references-and-borrowing.html +[2]: ch04-02-references-and-borrowing.html |