rustbyexample/hello/print_display2.rs

@@ -21,18 +21,6 @@ impl fmt::Display for Point2D {
     }
 }
 
-#[derive(Debug)]
-struct Complex {
-    real: f64,
-    imag: f64,
-}
-
-impl fmt::Display for Complex {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        write!(f, "{} + {}i", self.real, self.imag)
-    }
-}
-
 fn main() {
     let minmax = MinMax(0, 14);
 
@@ -54,13 +42,4 @@ fn main() {
     println!("Compare points:");
     println!("Display: {}", point);
     println!("Debug: {:?}", point);
-
-    let cmplx = Complex {
-        real: 3.3,
-        imag: 7.2,
-    };
-
-    println!("Compare complexes:");
-    println!("Display: {}", cmplx);
-    println!("Debug: {:?}", cmplx);
 }

rustbyexample/hello/testcase_list.rs

@@ -1,25 +0,0 @@
-use std::fmt;
-
-struct List(Vec<i32>);
-
-impl fmt::Display for List {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        let vec = &self.0;
-
-        write!(f, "[")?;
-
-        for (count, v) in vec.iter().enumerate() {
-            if count != 0 {
-                write!(f, ", ")?;
-            }
-            write!(f, "{}: {}", count, v)?;
-        }
-
-        write!(f, "]")
-    }
-}
-
-fn main() {
-    let v = List(vec![1, 2, 3]);
-    println!("{}", v);
-}