vec_test.rs -> vec.rs

single_file_tests/vec.rs

@@ -0,0 +1,25 @@
+
+fn main() {
+    let v = vec![1, 3, 5];
+    println!("For each print:");
+    for x in &v {
+        println!("{}", x);
+    }
+
+    println!("Enumerate for each print:");
+    for (i, x) in v.iter().enumerate() {
+        println!("{} -> {}", i, x);
+    }
+
+    println!("Pop print:");
+    let mut v2 = vec![2, 4, 6];
+    while let Some(x) = v2.pop() {
+        println!("{}", x);
+    }
+
+    println!("Map:");
+    let v3: Vec<i32> = (0..3).collect();
+    let v4 = v3.iter().map(|&x| x * 2).collect::<Vec<_>>();
+    println!("{:?} -> {:?}", v3, v4);
+}
+