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Diffstat (limited to 'exercises/generics/generics2.rs')
| -rw-r--r-- | exercises/generics/generics2.rs | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/exercises/generics/generics2.rs b/exercises/generics/generics2.rs new file mode 100644 index 0000000..7b9bfc4 --- /dev/null +++ b/exercises/generics/generics2.rs @@ -0,0 +1,28 @@ +// This powerful wrapper provides the ability to store a positive integer value. +// Rewrite it using generics so that it supports wrapping ANY type. +struct Wrapper<u32> { + value: u32 +} + +impl<u32> Wrapper<u32> { + pub fn new(value: u32) -> Self { + Wrapper { value } + } +} + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn store_u32_in_wrapper() { + assert_eq!(Wrapper::new(42).value, 42); + } + + #[test] + fn store_str_in_wrapper() { + // TODO: Delete this assert and uncomment the one below once you have finished the exercise. + assert!(false); + // assert_eq!(Wrapper::new("Foo").value, "Foo"); + } +}
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