more examples

Author: fimbault

mut/iterator-invalidation/Cargo.lock

@@ -0,0 +1,6 @@
+[package]
+name = "mutability"
+version = "0.1.0"
+authors = ["A new Rust developer <[email protected]>"]
+
+[dependencies]

mut/iterator-invalidation/Cargo.toml

@@ -0,0 +1,7 @@
+fn main() {
+    let mut list = vec![1, 2, 3];
+    for i in &list {
+        println!("i is {}", i);
+        list.push(i + 1);
+    }
+}

mut/iterator-invalidation/src/main.rs

@@ -0,0 +1,6 @@
+[package]
+name = "mutability"
+version = "0.1.0"
+authors = ["A new Rust developer <[email protected]>"]
+
+[dependencies]

mut/mut-example/Cargo.lock

@@ -0,0 +1,32 @@
+#[derive(Debug)]
+struct Account {
+    balance: u32,
+}
+
+impl Account {
+
+    // earn money
+    fn earn(&mut self, amount: u32) {
+        self.balance += amount;
+    }
+    
+}
+
+fn transfer(source: &mut Account, target: &mut Account, amount: u32) {
+    source.balance -= amount;
+    target.balance += amount;
+}
+
+fn main() {
+    let mut acct1 = Account { balance: 20 };
+    let mut acct2 = Account { balance: 10 };
+
+    transfer(&mut acct1, &mut acct2, 3);
+
+    let mut acct3 = Account { balance : 0 };
+    acct3.earn( 10);
+
+    println!("Account 1: {:?}", acct1);
+    println!("Account 2: {:?}", acct2);
+    println!("Account 3: {:?}", acct3);
+}

mut/mut-example/Cargo.toml

@@ -0,0 +1,6 @@
+[package]
+name = "ownership"
+version = "0.1.0"
+authors = ["A new Rust developer <[email protected]>"]
+
+[dependencies]

mut/mut-example/src/main.rs

@@ -0,0 +1,14 @@
+fn main() {
+    let s = String::from("item");
+
+    // Add code here that calls the pluralize function
+
+    println!(
+        "I have one {}, you have two {}",
+        s,
+        you_add_something_here,
+    );
+}
+
+// Add appropriate parameters, return values, and implementation to this function
+fn pluralize() {}