2020-04-20 00:27:28 +00:00
|
|
|
//@ check-pass
|
2018-11-01 03:32:45 +00:00
|
|
|
//@ compile-flags: -Wunused
|
|
|
|
|
|
|
|
|
|
// make sure write!() can't hide its unused Result
|
|
|
|
|
|
|
|
|
|
fn main() {
|
|
|
|
|
use std::fmt::Write;
|
|
|
|
|
let mut example = String::new();
|
|
|
|
|
write!(&mut example, "{}", 42); //~WARN must be used
|
|
|
|
|
}
|
