rust/tests/ui/union/union-trait-impl.rs

Ignoring revisions in .git-blame-ignore-revs. Click here to bypass and see the normal blame view.

20 lines
349 B
Rust
Raw Normal View History

// run-pass
// revisions: mirunsafeck thirunsafeck
// [thirunsafeck]compile-flags: -Z thir-unsafeck
use std::fmt;
union U {
a: u8
}
impl fmt::Display for U {
2018-05-08 23:41:44 +00:00
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
unsafe { write!(f, "Oh hai {}", self.a) }
}
}
fn main() {
assert_eq!(U { a: 2 }.to_string(), "Oh hai 2");
}