src/doc/book/redirects/mutability.md

   1 % Mutability
   2
   3 <small>There is a new edition of the book and this is an old link.</small>
   4
   5 > Variables are immutable only by default; we can make them mutable by adding mut in front of the variable name.
   6
   7 ```rust
   8 let mut x = 5;
   9 println!("The value of x is: {}", x);
  10 x = 6;
  11 println!("The value of x is: {}", x);
  12 ```
  13
  14 ---
  15
  16 Here are the relevant sections in the new and old books:
  17
  18 * **[In the second edition: Ch 3.01 — Variables and Mutability][2]**
  19 * <small>[In the first edition: Ch 3.11 — Mutability][1]</small>
  20
  21
  22 [1]: first-edition/mutability.html
  23 [2]: second-edition/ch03-01-variables-and-mutability.html