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