1 files changed, 33 insertions, 0 deletions
diff --git a/meap/meap-code/ch4/ch4-check-sats-3.rs b/meap/meap-code/ch4/ch4-check-sats-3.rs
new file mode 100755
index 0000000..58a65cd
--- /dev/null
+++ b/meap/meap-code/ch4/ch4-check-sats-3.rs
@@ -0,0 +1,33 @@
+#![allow(unused_variables)]
+
+#[derive(Debug)]
+struct CubeSat {
+  id: u64,
+}
+
+#[derive(Debug)]
+enum StatusMessage {
+  Ok,
+}
+
+fn check_status(sat_id: CubeSat) -> CubeSat {
+  println!("{:?}: {:?}", sat_id, StatusMessage::Ok);
+  sat_id
+}
+
+fn main () {
+  let sat_a = CubeSat { id: 0 };
+  let sat_b = CubeSat { id: 1 };
+  let sat_c = CubeSat { id: 2 };
+
+  let sat_a = check_status(sat_a);
+  let sat_b = check_status(sat_b);
+  let sat_c = check_status(sat_c);
+  // println!("a: {:?}, b: {:?}, c: {:?}", a_status, b_status, c_status);
+
+  // "waiting" ...
+  let sat_a = check_status(sat_a);
+  let sat_b = check_status(sat_b);
+  let sat_c = check_status(sat_c);
+  //println!("a: {:?}, b: {:?}, c: {:?}", a_status, b_status, c_status);
+}