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Commit | Line | Data |
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abe05a73 XL |
1 | |
2 | ||
ea8adc8c XL |
3 | #![warn(print_stdout, use_debug)] |
4 | ||
5 | use std::fmt::{Debug, Display, Formatter, Result}; | |
6 | ||
7 | #[allow(dead_code)] | |
8 | struct Foo; | |
9 | ||
10 | impl Display for Foo { | |
11 | fn fmt(&self, f: &mut Formatter) -> Result { | |
12 | write!(f, "{:?}", 43.1415) | |
13 | } | |
14 | } | |
15 | ||
16 | impl Debug for Foo { | |
17 | fn fmt(&self, f: &mut Formatter) -> Result { | |
18 | // ok, we can use `Debug` formatting in `Debug` implementations | |
19 | write!(f, "{:?}", 42.718) | |
20 | } | |
21 | } | |
22 | ||
23 | fn main() { | |
24 | println!("Hello"); | |
25 | print!("Hello"); | |
26 | ||
27 | print!("Hello {}", "World"); | |
28 | ||
29 | print!("Hello {:?}", "World"); | |
30 | ||
31 | print!("Hello {:#?}", "#orld"); | |
32 | ||
33 | assert_eq!(42, 1337); | |
34 | ||
35 | vec![1, 2]; | |
36 | } |