rustlings/exercises/functions/functions4.rs

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2018-02-22 13:09:53 +07:00
// functions4.rs
2015-09-18 07:12:00 +06:00
// Make me compile! Scroll down for hints :)
// This store is having a sale where if the price is an even number, you get
// 10 (money unit) off, but if it's an odd number, it's 3 (money unit) less.
fn main() {
let original_price = 51;
println!("Your sale price is {}", sale_price(original_price));
}
fn sale_price(price: i32) -> {
if is_even(price) {
price - 10
} else {
price - 3
}
}
fn is_even(num: i32) -> bool {
num % 2 == 0
}
2018-03-05 02:26:56 +07:00
// The error message points to line 12 and says it expects a type after the
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// `->`. This is where the function's return type should be-- take a look at
// the `is_even` function for an example!