generics

Chapter01/intro_generics.rs

@@ -28,11 +28,17 @@ fn foo_u32(x: u32) -> u32
 {
     x*x
 }
+
 fn foo_f32(x: f32) -> f32
 {
     x*x
 }
 
+fn foo_i32(x: i32) -> i32
+{
+    x*x
+}
+
 //can be written with generics
 fn foo<T>(x: T) -> T
    where T: std::ops::Mul<Output = T> + Copy