48 lines
1.1 KiB
Rust
48 lines
1.1 KiB
Rust
// Copyright 2014-2018 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#![allow(clippy::print_literal, clippy::write_literal)]
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#![warn(clippy::print_stdout, clippy::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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