35 lines
702 B
Rust
35 lines
702 B
Rust
#![allow(clippy::print_literal, clippy::write_literal)]
|
|
#![warn(clippy::print_stdout, clippy::use_debug)]
|
|
|
|
use std::fmt::{Debug, Display, Formatter, Result};
|
|
|
|
#[allow(dead_code)]
|
|
struct Foo;
|
|
|
|
impl Display for Foo {
|
|
fn fmt(&self, f: &mut Formatter) -> Result {
|
|
write!(f, "{:?}", 43.1415)
|
|
}
|
|
}
|
|
|
|
impl Debug for Foo {
|
|
fn fmt(&self, f: &mut Formatter) -> Result {
|
|
// ok, we can use `Debug` formatting in `Debug` implementations
|
|
write!(f, "{:?}", 42.718)
|
|
}
|
|
}
|
|
|
|
fn main() {
|
|
println!("Hello");
|
|
print!("Hello");
|
|
|
|
print!("Hello {}", "World");
|
|
|
|
print!("Hello {:?}", "World");
|
|
|
|
print!("Hello {:#?}", "#orld");
|
|
|
|
assert_eq!(42, 1337);
|
|
|
|
vec![1, 2];
|
|
}
|