Rust

11.5    Solutions

This section provides the code solutions for the practice exercises in Section 11.4. The code is largely self-explanatory; however, we have included comments and additional explanations wherever necessary to enhance understanding.

1. Implementing the peek method in a linked list

   #[derive(Debug)]struct Linklist {    head: pointer,}#[derive(Debug)]struct Node {    element: i32,    next: pointer,}type pointer = Option<Box<Node>>;impl Linklist {    fn peek(&self) -> Option<i32> {        match &self.head {            Some(H) => Some(H.element),            None => None,        }    }}fn main() {}  

2. Making a linked list generic in Rust

   #[derive(Debug)]struct Linklist<T> {    head: pointer<T>,}#[derive(Debug)]struct Node<T> {    element: T,    next: pointer<T>,}type pointer<T> = Option<Box ...