// 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
+ // So `el` is an 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:
match min {
// In this case (*arm*) of the `match`, `min` is currently nothing, so let's just make it the number `el`.
// Indeed, we can: The following line tells Rust to take
// the constructors of `NumberOrNothing` into the local namespace.
-// Try moving that above the function, and removing all the occurrences `NumberOrNothing::`.
+// Try moving that above the function, and removing all the occurrences of `NumberOrNothing::`.
use self::NumberOrNothing::{Number,Nothing};
// To call this function, we now just need a list. Of course, ultimately we want to ask the user for
unimplemented!()
}
-// 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, we would also like to actually see the result of the computation, so we need to print the result.
fn print_number_or_nothing(n: NumberOrNothing) {
unimplemented!()
print_number_or_nothing(min);
}
-// You can now use `cargo build` to compile your code. If all goes well, try `cargo run` on the
-// console to run it.
+// Finally, try `cargo run` on the console to run it.