rust/tests/compile-fail/toplevel_ref_arg.rs
Manish Goregaokar a5c3102594 Use compiletest
2015-04-14 00:20:44 +05:30

15 lines
265 B
Rust

#![feature(plugin)]
#![plugin(clippy)]
#![deny(clippy)]
#![allow(unused)]
fn the_answer(ref mut x: u8) { //~ ERROR `ref` directly on a function argument is ignored
*x = 42;
}
fn main() {
let mut x = 0;
the_answer(x);
println!("The answer is {}.", x);
}