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Diffstat (limited to 'rustlings/exercises/06_move_semantics')
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diff --git a/rustlings/exercises/06_move_semantics/README.md b/rustlings/exercises/06_move_semantics/README.md new file mode 100644 index 0000000..54ddd8e --- /dev/null +++ b/rustlings/exercises/06_move_semantics/README.md @@ -0,0 +1,10 @@ +# Move Semantics + +These exercises are adapted from [pnkfelix](https://github.com/pnkfelix)'s [Rust Tutorial](https://pnkfelix.github.io/rust-examples-icfp2014/) -- Thank you Felix!!! + +## Further information + +For this section, the book links are especially important. + +- [Ownership](https://doc.rust-lang.org/book/ch04-01-what-is-ownership.html) +- [Reference and borrowing](https://doc.rust-lang.org/book/ch04-02-references-and-borrowing.html) diff --git a/rustlings/exercises/06_move_semantics/move_semantics1.rs b/rustlings/exercises/06_move_semantics/move_semantics1.rs new file mode 100644 index 0000000..4eb3d61 --- /dev/null +++ b/rustlings/exercises/06_move_semantics/move_semantics1.rs @@ -0,0 +1,24 @@ +// TODO: Fix the compiler error in this function. +fn fill_vec(vec: Vec<i32>) -> Vec<i32> { + let vec = vec; + + vec.push(88); + + vec +} + +fn main() { + // You can optionally experiment here. +} + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn move_semantics1() { + let vec0 = vec![22, 44, 66]; + let vec1 = fill_vec(vec0); + assert_eq!(vec1, vec![22, 44, 66, 88]); + } +} diff --git a/rustlings/exercises/06_move_semantics/move_semantics2.rs b/rustlings/exercises/06_move_semantics/move_semantics2.rs new file mode 100644 index 0000000..a3ab7a0 --- /dev/null +++ b/rustlings/exercises/06_move_semantics/move_semantics2.rs @@ -0,0 +1,28 @@ +fn fill_vec(vec: Vec<i32>) -> Vec<i32> { + let mut vec = vec; + + vec.push(88); + + vec +} + +fn main() { + // You can optionally experiment here. +} + +#[cfg(test)] +mod tests { + use super::*; + + // TODO: Make both vectors `vec0` and `vec1` accessible at the same time to + // fix the compiler error in the test. + #[test] + fn move_semantics2() { + let vec0 = vec![22, 44, 66]; + + let vec1 = fill_vec(vec0); + + assert_eq!(vec0, [22, 44, 66]); + assert_eq!(vec1, [22, 44, 66, 88]); + } +} diff --git a/rustlings/exercises/06_move_semantics/move_semantics3.rs b/rustlings/exercises/06_move_semantics/move_semantics3.rs new file mode 100644 index 0000000..11dbbbe --- /dev/null +++ b/rustlings/exercises/06_move_semantics/move_semantics3.rs @@ -0,0 +1,22 @@ +// TODO: Fix the compiler error in the function without adding any new line. +fn fill_vec(vec: Vec<i32>) -> Vec<i32> { + vec.push(88); + + vec +} + +fn main() { + // You can optionally experiment here. +} + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn move_semantics3() { + let vec0 = vec![22, 44, 66]; + let vec1 = fill_vec(vec0); + assert_eq!(vec1, [22, 44, 66, 88]); + } +} diff --git a/rustlings/exercises/06_move_semantics/move_semantics4.rs b/rustlings/exercises/06_move_semantics/move_semantics4.rs new file mode 100644 index 0000000..56da988 --- /dev/null +++ b/rustlings/exercises/06_move_semantics/move_semantics4.rs @@ -0,0 +1,18 @@ +fn main() { + // You can optionally experiment here. +} + +#[cfg(test)] +mod tests { + // TODO: Fix the compiler errors only by reordering the lines in the test. + // Don't add, change or remove any line. + #[test] + fn move_semantics4() { + let mut x = Vec::new(); + let y = &mut x; + let z = &mut x; + y.push(42); + z.push(13); + assert_eq!(x, [42, 13]); + } +} diff --git a/rustlings/exercises/06_move_semantics/move_semantics5.rs b/rustlings/exercises/06_move_semantics/move_semantics5.rs new file mode 100644 index 0000000..cd0dafd --- /dev/null +++ b/rustlings/exercises/06_move_semantics/move_semantics5.rs @@ -0,0 +1,24 @@ +#![allow(clippy::ptr_arg)] + +// TODO: Fix the compiler errors without changing anything except adding or +// removing references (the character `&`). + +// Shouldn't take ownership +fn get_char(data: String) -> char { + data.chars().last().unwrap() +} + +// Should take ownership +fn string_uppercase(mut data: &String) { + data = data.to_uppercase(); + + println!("{data}"); +} + +fn main() { + let data = "Rust is great!".to_string(); + + get_char(data); + + string_uppercase(&data); +} |