Merge pull request #240 from Lmmmmmm-bb/chore/panic
chore: solution of panic second question
This commit is contained in:
commit
01bc0b4a0e
|
@ -25,18 +25,20 @@ fn main() {
|
|||
```rust
|
||||
// MAKE the code work by fixing all panics
|
||||
fn main() {
|
||||
assert_eq!("abc".as_bytes(), [96, 97, 98]);
|
||||
assert_eq!("abc".as_bytes(), [97, 98, 99]);
|
||||
|
||||
let v = vec![1, 2, 3];
|
||||
let ele = v[3];
|
||||
let ele = v[2];
|
||||
// unwrap may panic when get return a None
|
||||
let ele = v.get(3).unwrap();
|
||||
let ele = v.get(2).unwrap();
|
||||
|
||||
// Sometimes, the compiler is unable to find the overflow errors for you in compile time ,so a panic will occur
|
||||
let v = production_rate_per_hour(2);
|
||||
|
||||
// because of the same reason as above, we have to wrap it in a function to make the panic occur
|
||||
divide(15, 0)
|
||||
divide(15, 1);
|
||||
|
||||
println!("Success!")
|
||||
}
|
||||
|
||||
fn divide(x:u8, y:u8) {
|
||||
|
@ -44,7 +46,7 @@ fn divide(x:u8, y:u8) {
|
|||
}
|
||||
|
||||
fn production_rate_per_hour(speed: u8) -> f64 {
|
||||
let cph: u8 = 221;
|
||||
let cph: u8 = 21;
|
||||
match speed {
|
||||
1..=4 => (speed * cph) as f64,
|
||||
5..=8 => (speed * cph) as f64 * 0.9,
|
||||
|
@ -56,4 +58,4 @@ fn production_rate_per_hour(speed: u8) -> f64 {
|
|||
pub fn working_items_per_minute(speed: u8) -> u32 {
|
||||
(production_rate_per_hour(speed) / 60 as f64) as u32
|
||||
}
|
||||
```
|
||||
```
|
||||
|
|
Loading…
Reference in New Issue