From bf66df1a16461ef1ee50510803a3097914ffcb82 Mon Sep 17 00:00:00 2001 From: Hunter Kvalevog Date: Mon, 14 Sep 2026 17:15:13 -0500 Subject: Add rustlings --- rustlings/exercises/23_conversions/using_as.rs | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 rustlings/exercises/23_conversions/using_as.rs (limited to 'rustlings/exercises/23_conversions/using_as.rs') diff --git a/rustlings/exercises/23_conversions/using_as.rs b/rustlings/exercises/23_conversions/using_as.rs new file mode 100644 index 0000000..c131d1f --- /dev/null +++ b/rustlings/exercises/23_conversions/using_as.rs @@ -0,0 +1,24 @@ +// Type casting in Rust is done via the usage of the `as` operator. +// Note that the `as` operator is not only used when type casting. It also helps +// with renaming imports. + +fn average(values: &[f64]) -> f64 { + let total = values.iter().sum::(); + // TODO: Make a conversion before dividing. + total / values.len() +} + +fn main() { + let values = [3.5, 0.3, 13.0, 11.7]; + println!("{}", average(&values)); +} + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn returns_proper_type_and_value() { + assert_eq!(average(&[3.5, 0.3, 13.0, 11.7]), 7.125); + } +} -- cgit v1.2.3