data_structures/linked_list/
errors.rs

1#[derive(Debug)]
2pub enum Error {
3    PositionOutOfBounds(usize, usize),
4    ElementDoesNotExist,
5}
6
7impl std::fmt::Display for Error {
8    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::result::Result<(), std::fmt::Error> {
9        match self {
10            Error::PositionOutOfBounds(posn, length) => write!(
11                f,
12                "Trying to access at {} but list's length is {}",
13                posn, length
14            ),
15
16            Error::ElementDoesNotExist => write!(f, "Element doesn't exist"),
17        }
18    }
19}
20impl std::error::Error for Error {}

data_structures/linked_list/errors.rs

data_structures/linked_list/
errors.rs