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author | Adam Carpenter <adam.carpenter@adp.com> | 2019-02-11 16:59:01 -0500 |
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committer | Adam Carpenter <adam.carpenter@adp.com> | 2019-02-11 16:59:01 -0500 |
commit | ef1bf4921ee4127d461eec03a14c9070d193345c (patch) | |
tree | ab9f4ed73fcf97656743c959ce8c9adbe2ce9924 /enums/src | |
download | learning-rust-ef1bf4921ee4127d461eec03a14c9070d193345c.tar.xz learning-rust-ef1bf4921ee4127d461eec03a14c9070d193345c.zip |
Init.
Diffstat (limited to 'enums/src')
-rwxr-xr-x | enums/src/main.rs | 12 | ||||
-rwxr-xr-x | enums/src/main1.rs | 48 |
2 files changed, 60 insertions, 0 deletions
diff --git a/enums/src/main.rs b/enums/src/main.rs new file mode 100755 index 0000000..b8c61de --- /dev/null +++ b/enums/src/main.rs @@ -0,0 +1,12 @@ +fn main() { + let some_u8_value = Some(3u8); +// match some_u8_value { +// Some(3) => println!("three"), +// _ => (), +// } + + if let Some(3) = some_u8_value { + println!("three"); + } + +} diff --git a/enums/src/main1.rs b/enums/src/main1.rs new file mode 100755 index 0000000..9670693 --- /dev/null +++ b/enums/src/main1.rs @@ -0,0 +1,48 @@ +#[derive(Debug)] +enum UsState { + NY, + VA, + NC, +} + +enum Coin { + Penny, + Nickel, + Dime, + Quarter(UsState), +} + +impl Coin { + + fn value_in_cents(self) -> u32 { + + match self { + Coin::Penny => { + println!("lucky penny"); + 1 + }, + Coin::Nickel => 5, + Coin::Dime => 10, + Coin::Quarter(state) => { + println!("State quarter from {:?}", state); + 25 + }, + + } + + } +} + +fn plus_one(x: Option<i32>) -> Option<i32> { + + match x { + None => None, + Some(i) => Some(i + 1), + } +} + +fn main() { + let five = Some(5); + let six = plus_one(five); + let none = plus_one(None); +} |