rust/tests/ui/issues/issue-17322.rs
2023-01-11 09:32:08 +00:00

14 lines
243 B
Rust

// run-pass
// pretty-expanded FIXME #23616
use std::io::{self, Write};
fn f(wr: &mut dyn Write) {
wr.write_all(b"hello").ok().expect("failed");
}
fn main() {
let mut wr = Box::new(io::stdout()) as Box<dyn Write>;
f(&mut wr);
}