basics

Author: monnetchr

src/basics.rs

@@ -0,0 +1,39 @@
+#[derive(Debug)]
+struct User {
+    username: String,
+    active: bool,
+}
+impl User {
+    fn new(username: String) -> User {
+        User {
+            username,
+            active: true,
+        }
+    }
+}
+impl User {
+    fn clone(&self, active: bool) -> User {
+        User {
+            username: self.username.clone(),
+            active: active,
+        }
+    }
+}
+pub fn basics() {
+    let strings = [""; 10];
+    println!("Strings: {:?}", strings);
+
+    let mut s = String::from("value");
+    let r1 = &s;
+    let r2 = &s;
+    println!("r1: {}, r2: {}", r1, r2);
+    let r3 = &mut s;
+    r3.push_str("-plus");
+    println!("r3: {}", r3);
+
+    let mut user = User::new(String::from("user1")).clone(false);
+    println!("user: {:#?}, active={}", user, user.active);
+    let name = user.username;
+    user.username = String::from("user2");
+    println!("name: {}, user: {:?}", name, user);
+}

src/main.rs

@@ -1,5 +1,8 @@
 mod guessgame;
+mod basics;
 
 fn main() {
+    basics::basics();
+    println!();
     guessgame::guess_game();
 }