From ef1bf4921ee4127d461eec03a14c9070d193345c Mon Sep 17 00:00:00 2001 From: Adam Carpenter Date: Mon, 11 Feb 2019 16:59:01 -0500 Subject: Init. --- enums/.gitignore | 2 ++ enums/Cargo.lock | 4 ++++ enums/Cargo.toml | 7 +++++++ enums/src/main.rs | 12 ++++++++++++ enums/src/main1.rs | 48 ++++++++++++++++++++++++++++++++++++++++++++++++ 5 files changed, 73 insertions(+) create mode 100755 enums/.gitignore create mode 100755 enums/Cargo.lock create mode 100755 enums/Cargo.toml create mode 100755 enums/src/main.rs create mode 100755 enums/src/main1.rs (limited to 'enums') diff --git a/enums/.gitignore b/enums/.gitignore new file mode 100755 index 0000000..53eaa21 --- /dev/null +++ b/enums/.gitignore @@ -0,0 +1,2 @@ +/target +**/*.rs.bk diff --git a/enums/Cargo.lock b/enums/Cargo.lock new file mode 100755 index 0000000..d3577dd --- /dev/null +++ b/enums/Cargo.lock @@ -0,0 +1,4 @@ +[[package]] +name = "enums" +version = "0.1.0" + diff --git a/enums/Cargo.toml b/enums/Cargo.toml new file mode 100755 index 0000000..99fb9fc --- /dev/null +++ b/enums/Cargo.toml @@ -0,0 +1,7 @@ +[package] +name = "enums" +version = "0.1.0" +authors = ["Adam Carpenter "] +edition = "2018" + +[dependencies] 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) -> Option { + + 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); +} -- cgit v1.2.3