Multiple bounds

Multiple bounds can be applied with a +. Like normal, different types are
separated with ,.

  1. use std::fmt::{Debug, Display};
  3. fn compare_prints<T: Debug + Display>(t: &T) {
  4.     println!("Debug: `{:?}`", t);
  5.     println!("Display: `{}`", t);
  6. }
  8. fn compare_types<T: Debug, U: Debug>(t: &T, u: &U) {
  9.     println!("t: `{:?}", t);
  10.     println!("u: `{:?}", u);
  11. }
  13. fn main() {
  14.     let string = "words";
  15.     let array = [1, 2, 3];
  16.     let vec = vec![1, 2, 3];
  18.     compare_prints(&string);
  19.     //compare_prints(&array);
  20.     // TODO ^ Try uncommenting this.
  22.     compare_types(&array, &vec);
  23. }

See also:

std::fmt and traits