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

//@ run-pass

use std::fmt;

union U {
    a: u8
}

impl fmt::Display for U {
    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");
}
Add `// run-pass` to collection of tests. 2018-09-06 12:41:12 +00:00			`//@ run-pass`

Address comments and add requested tests 2016-08-26 16:23:42 +00:00			`use std::fmt;`

Translate union constants Fix alignment for packed unions Add some missing privacy test Get rid of `unimplemented_unions` macro 2016-08-22 16:56:14 +00:00			`union U {`
Address comments and add requested tests 2016-08-26 16:23:42 +00:00			`a: u8`
Translate union constants Fix alignment for packed unions Add some missing privacy test Get rid of `unimplemented_unions` macro 2016-08-22 16:56:14 +00:00			`}`

Address comments and add requested tests 2016-08-26 16:23:42 +00:00			`impl fmt::Display for U {`
use fmt::Result where applicable 2018-05-08 23:41:44 +00:00			`fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {`
Address comments and add requested tests 2016-08-26 16:23:42 +00:00			`unsafe { write!(f, "Oh hai {}", self.a) }`
			`}`
			`}`
Translate union constants Fix alignment for packed unions Add some missing privacy test Get rid of `unimplemented_unions` macro 2016-08-22 16:56:14 +00:00
			`fn main() {`
Address comments and add requested tests 2016-08-26 16:23:42 +00:00			`assert_eq!(U { a: 2 }.to_string(), "Oh hai 2");`
Translate union constants Fix alignment for packed unions Add some missing privacy test Get rid of `unimplemented_unions` macro 2016-08-22 16:56:14 +00:00			`}`