rust/tests/ui/writeln_empty_string.rs
2019-01-08 21:46:39 +01:00

21 lines
372 B
Rust

// run-rustfix
#![allow(unused_must_use)]
#![warn(clippy::writeln_empty_string)]
use std::io::Write;
fn main() {
let mut v = Vec::new();
// These should fail
writeln!(&mut v, "");
let mut suggestion = Vec::new();
writeln!(&mut suggestion, "");
// These should be fine
writeln!(&mut v);
writeln!(&mut v, " ");
write!(&mut v, "");
}