1 // Copyright 2014-2018 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution.
4 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
5 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
6 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
7 // option. This file may not be copied, modified, or distributed
8 // except according to those terms.
10 #![warn(clippy::print_literal)]
13 // these should be fine
17 println!("Hello {}", world);
18 println!("Hello {world}", world = world);
19 println!("3 in hex is {:X}", 3);
20 println!("2 + 1 = {:.4}", 3);
21 println!("2 + 1 = {:5.4}", 3);
22 println!("Debug test {:?}", "hello, world");
23 println!("{0:8} {1:>8}", "hello", "world");
24 println!("{1:8} {0:>8}", "hello", "world");
25 println!("{foo:8} {bar:>8}", foo = "hello", bar = "world");
26 println!("{bar:8} {foo:>8}", foo = "hello", bar = "world");
27 println!("{number:>width$}", number = 1, width = 6);
28 println!("{number:>0width$}", number = 1, width = 6);
30 // these should throw warnings
31 println!("{} of {:b} people know binary, the other half doesn't", 1, 2);
32 print!("Hello {}", "world");
33 println!("Hello {} {}", world, "world");
34 println!("Hello {}", "world");
35 println!("10 / 4 is {}", 2.5);
36 println!("2 + 1 = {}", 3);
38 // positional args don't change the fact
39 // that we're using a literal -- this should
41 println!("{0} {1}", "hello", "world");
42 println!("{1} {0}", "hello", "world");
44 // named args shouldn't change anything either
45 println!("{foo} {bar}", foo = "hello", bar = "world");
46 println!("{bar} {foo}", foo = "hello", bar = "world");