[rustc.git] / src / test / ui / repr / aligned_enum_cast.rs

// run-pass
// allows aligned custom discriminant enums to cast into other types
// See the issue #92464 for more info
#[allow(dead_code)]
#[repr(align(8))]
enum Aligned {
    Zero = 0,
    One = 1,
}

fn main() {
    let aligned = Aligned::Zero;
    let fo = aligned as u8;
    println!("foo {}", fo);
    assert_eq!(fo, 0);
    println!("{}", tou8(Aligned::Zero));
    assert_eq!(tou8(Aligned::Zero), 0);
}

#[inline(never)]
fn tou8(al: Aligned) -> u8 {
    // Cast behind a function call so ConstProp does not see it
    // (so that we can test codegen).
    al as u8
}
Commit	Line	Data
5099ac24 FG	1	// run-pass
	2	// allows aligned custom discriminant enums to cast into other types
	3	// See the issue #92464 for more info
	4	#[allow(dead_code)]
	5	#[repr(align(8))]
	6	enum Aligned {
	7	Zero = 0,
	8	One = 1,
	9	}
	10
	11	fn main() {
	12	let aligned = Aligned::Zero;
	13	let fo = aligned as u8;
064997fb FG	14	println!("foo {}", fo);
	15	assert_eq!(fo, 0);
	16	println!("{}", tou8(Aligned::Zero));
	17	assert_eq!(tou8(Aligned::Zero), 0);
	18	}
	19
	20	#[inline(never)]
	21	fn tou8(al: Aligned) -> u8 {
	22	// Cast behind a function call so ConstProp does not see it
	23	// (so that we can test codegen).
	24	al as u8
5099ac24	25	}