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diff --git a/src/doc/book/redirects/mutability.md b/src/doc/book/redirects/mutability.md new file mode 100644 index 000000000..89fc3b6f5 --- /dev/null +++ b/src/doc/book/redirects/mutability.md @@ -0,0 +1,23 @@ +% Mutability + +<small>There is a new edition of the book and this is an old link.</small> + +> Variables are immutable only by default; we can make them mutable by adding mut in front of the variable name. + +```rust +let mut x = 5; +println!("The value of x is: {}", x); +x = 6; +println!("The value of x is: {}", x); +``` + +--- + +Here are the relevant sections in the new and old books: + +* **[in the current edition: Ch 3.01 — Variables and Mutability][2]** +* <small>[In the first edition: Ch 3.11 — Mutability][1]</small> + + +[1]: https://doc.rust-lang.org/1.30.0/book/first-edition/mutability.html +[2]: ch03-01-variables-and-mutability.html |