fn vec_min(vec: Vec<i32>) -> NumberOrNothing {
let mut min = NumberOrNothing::Nothing;
- // Now we want to *iterate* over the list. Rust has some nice syntax for
- // iterators:
+ // Now we want to *iterate* over the list. Rust has some nice syntax for iterators:
for el in vec {
// So `el` is al element of the list. We need to update `min` accordingly, but how do we get the current
// number in there? This is what pattern matching can do:
// Finally, let's call our functions and run the code!
// But, wait, we would like to actually see something, so we need to print the result.
-// Of course Rust can print numbers, but after calling `vec_min`, we have a `NumberOrNothing`.
-// So let's write a small helper function that prints such values.
fn print_number_or_nothing(n: NumberOrNothing) {
unimplemented!()