mirror of
https://github.com/rust-lang/rust
synced 2024-09-30 22:04:36 +00:00
11 lines
229 B
Rust
11 lines
229 B
Rust
//@ check-pass
|
|
//@ 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
|
|
}
|