42 lines
1.3 KiB
Rust
42 lines
1.3 KiB
Rust
// Copyright 2014-2018 The Rust Project Developers. See the COPYRIGHT
|
|
// file at the top-level directory of this distribution.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
|
|
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
|
|
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
|
|
// option. This file may not be copied, modified, or distributed
|
|
// except according to those terms.
|
|
|
|
|
|
|
|
|
|
#![allow(clippy::write_literal)]
|
|
#![warn(clippy::write_with_newline)]
|
|
|
|
use std::io::Write;
|
|
|
|
fn main() {
|
|
let mut v = Vec::new();
|
|
|
|
// These should fail
|
|
write!(&mut v, "Hello\n");
|
|
write!(&mut v, "Hello {}\n", "world");
|
|
write!(&mut v, "Hello {} {}\n", "world", "#2");
|
|
write!(&mut v, "{}\n", 1265);
|
|
|
|
// These should be fine
|
|
write!(&mut v, "");
|
|
write!(&mut v, "Hello");
|
|
writeln!(&mut v, "Hello");
|
|
writeln!(&mut v, "Hello\n");
|
|
writeln!(&mut v, "Hello {}\n", "world");
|
|
write!(&mut v, "Issue\n{}", 1265);
|
|
write!(&mut v, "{}", 1265);
|
|
write!(&mut v, "\n{}", 1275);
|
|
write!(&mut v, "\n\n");
|
|
write!(&mut v, "like eof\n\n");
|
|
write!(&mut v, "Hello {} {}\n\n", "world", "#2");
|
|
writeln!(&mut v, "\ndon't\nwarn\nfor\nmultiple\nnewlines\n"); // #3126
|
|
writeln!(&mut v, "\nbla\n\n"); // #3126
|
|
}
|