RBE hello/print/fmt activity

2021-09-10 11:18:23 -04:00 · 2021-09-10 11:18:23 -04:00 · 60da2e20dc
commit 60da2e20dc
parent 8f891c1e73
1 changed files with 11 additions and 1 deletions
--- a/rustbyexample/hello/print_fmt.rs
+++ b/rustbyexample/hello/print_fmt.rs
@ -30,6 +30,16 @@ struct Color {
    blue: u8,
 }

+impl Display for Color {
+    fn fmt(&self, f: &mut Formatter) -> fmt::Result {
+        write!(
+            f,
+            "RGB ({}, {}, {}) 0x{:02X}{:02X}{:02X}",
+            self.red, self.green, self.blue, self.red, self.green, self.blue
+        )
+    }
+}
+
 fn main() {
    for city in [
        City {
@ -72,6 +82,6 @@ fn main() {
    ]
    .iter()
    {
-        println!("{:?}", *color);
+        println!("{}", *color);
    }
 }