Incorporate MEAPv12 changes

Author: Tim McNamara

ch1/ch1-cereals/Cargo.lock

@@ -0,0 +1,9 @@
+[package]
+name = "ch1-cereals"
+version = "0.1.0"
+authors = ["Tim McNamara <[email protected]>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

ch1/ch1-cereals/Cargo.toml

@@ -0,0 +1,13 @@
+#[derive(Debug)]
+enum Cereal {
+    Barley, Millet, Rice,
+    Rye, Spelt, Wheat,
+}
+
+fn main() {
+    let mut grains: Vec<Cereal> = vec![];
+    grains.push(Cereal::Rye);
+    drop(grains);
+    
+    println!("{:?}", grains);
+}

ch1/ch1-cereals/src/main.rs

@@ -0,0 +1,9 @@
+[package]
+name = "ch1-fruit"
+version = "0.1.0"
+authors = ["Tim McNamara <[email protected]>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

ch1/ch1-fruit/Cargo.lock

@@ -0,0 +1,5 @@
+fn main() {
+  let fruit = vec!['🥝', '🍌', '🍇'];
+  let buffer_overflow = fruit[4];   // <1>
+  assert_eq!(buffer_overflow, '🍉') // <2>
+}

ch1/ch1-fruit/Cargo.toml

@@ -0,0 +1,9 @@
+[package]
+name = "ch1-letters"
+version = "0.1.0"
+authors = ["Tim McNamara <[email protected]>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

ch1/ch1-fruit/src/main.rs

@@ -0,0 +1,10 @@
+fn main() {
+  let mut letters = vec![
+      "a", "b", "b"
+  ];
+  
+  for letter in letters {
+      println!("{}", letter);
+      letters.push(letter.clone());
+  }
+}