2 #![allow(unused_imports)]
3 #![warn(clippy::explicit_write)]
5 fn stdout() -> String {
9 fn stderr() -> String {
31 println!("test\ntest");
32 eprintln!("test\ntest");
35 eprintln!("with {}", value);
36 eprintln!("with {} {}", 2, value);
37 eprintln!("with {value}");
38 eprintln!("macro arg {}", one!());
40 eprintln!("{:w$}", value, w = width);
42 // these should not warn, different destination
45 let mut s = String::new();
46 write!(s, "test").unwrap();
47 write!(s, "test").unwrap();
48 writeln!(s, "test").unwrap();
49 writeln!(s, "test").unwrap();
50 s.write_fmt(format_args!("test")).unwrap();
51 s.write_fmt(format_args!("test")).unwrap();
52 write!(stdout(), "test").unwrap();
53 write!(stderr(), "test").unwrap();
54 writeln!(stdout(), "test").unwrap();
55 writeln!(stderr(), "test").unwrap();
56 stdout().write_fmt(format_args!("test")).unwrap();
57 stderr().write_fmt(format_args!("test")).unwrap();
59 // these should not warn, no unwrap
62 std::io::stdout().write_fmt(format_args!("test")).expect("no stdout");
63 std::io::stderr().write_fmt(format_args!("test")).expect("no stderr");