rustlings

solving rustlings ft. dracuxan
git clone [email protected]:dracuxan/rustlings.git
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using_as.rs (592B)

      1 // Type casting in Rust is done via the usage of the `as` operator.
      2 // Note that the `as` operator is not only used when type casting. It also helps
      3 // with renaming imports.
      4 
      5 fn average(values: &[f64]) -> f64 {
      6     let total = values.iter().sum::<f64>();
      7     // TODO: Make a conversion before dividing.
      8     total / values.len()
      9 }
     10 
     11 fn main() {
     12     let values = [3.5, 0.3, 13.0, 11.7];
     13     println!("{}", average(&values));
     14 }
     15 
     16 #[cfg(test)]
     17 mod tests {
     18     use super::*;
     19 
     20     #[test]
     21     fn returns_proper_type_and_value() {
     22         assert_eq!(average(&[3.5, 0.3, 13.0, 11.7]), 7.125);
     23     }
     24 }