1 files changed, 27 insertions, 0 deletions
diff --git a/meap/meap-code/ch4/ch4-check-sats-1.rs b/meap/meap-code/ch4/ch4-check-sats-1.rs
new file mode 100644
index 0000000..254c866
--- /dev/null
+++ b/meap/meap-code/ch4/ch4-check-sats-1.rs
@@ -0,0 +1,27 @@
+#![allow(unused_variables)]
+
+#[derive(Debug)]
+enum StatusMessage {
+  Ok,
+}
+
+fn check_status(sat_id: u64) -> StatusMessage {
+  StatusMessage::Ok
+}
+
+fn main () {
+  let sat_a = 0;
+  let sat_b = 1;
+  let sat_c = 2;
+
+  let a_status = check_status(sat_a);
+  let b_status = check_status(sat_b);
+  let c_status = check_status(sat_c);
+  println!("a: {:?}, b: {:?}, c: {:?}", a_status, b_status, c_status);
+
+  // "waiting" ...
+  let a_status = check_status(sat_a);
+  let b_status = check_status(sat_b);
+  let c_status = check_status(sat_c);
+  println!("a: {:?}, b: {:?}, c: {:?}", a_status, b_status, c_status);
+}