| // run-pass |
| |
| use std::fmt::Display; |
| |
| fn check_display_eq(iter: impl IntoIterator<Item = impl Display>) { |
| let mut collected = String::new(); |
| for it in iter { |
| let disp = format!("{} ", it); |
| collected.push_str(&disp); |
| } |
| assert_eq!("0 3 27 823 4891 1 0", collected.trim()); |
| } |
| |
| fn main() { |
| let i32_list = [0i32, 3, 27, 823, 4891, 1, 0]; |
| let i32_list_vec = vec![0i32, 3, 27, 823, 4891, 1, 0]; |
| let u32_list = [0u32, 3, 27, 823, 4891, 1, 0]; |
| let u32_list_vec = vec![0u32, 3, 27, 823, 4891, 1, 0]; |
| let u16_list = [0u16, 3, 27, 823, 4891, 1, 0]; |
| let str_list = ["0", "3", "27", "823", "4891", "1", "0"]; |
| let str_list_vec = vec!["0", "3", "27", "823", "4891", "1", "0"]; |
| |
| check_display_eq(&i32_list); |
| check_display_eq(i32_list_vec); |
| check_display_eq(&u32_list); |
| check_display_eq(u32_list_vec); |
| check_display_eq(&u16_list); |
| check_display_eq(&str_list); |
| check_display_eq(str_list_vec); |
| } |
