# Error handling ## Example Execute the following command to run [`./solutions/examples/error.rs`](https://github.com/Cyfrin/rust-crash-course/blob/main/topics/error/solutions/examples/error.rs) ```shell cargo run --example error ``` ## Exercises Exercises are in [`./exercises/src/lib.rs`](https://github.com/Cyfrin/rust-crash-course/blob/main/topics/error/exercises/src/lib.rs) ### Exercise 1 ```rust pub fn div(x: u32, y: u32) -> Result<u32, MathError> { todo!(); } ``` Return `MathError` if `y` is 0. Otherwise return `x / y`. ### Exercise 2 ```rust pub fn get(v: &[u32], i: usize, default_val: u32) -> u32 { todo!(); } ``` Return `v[i]` if `i` is a valid index. Otherwise return `default_val`. ### Test ```shell cargo test ```