// check-pass // compile-flags: -Zextra-const-ub-checks #[derive(PartialEq, Eq, Copy, Clone)] #[repr(packed)] struct Foo { field: (i64, u32, u32, u32), } const FOO: Foo = Foo { field: (5, 6, 7, 8), }; fn main() { match FOO { Foo { field: (5, 6, 7, 8) } => {}, FOO => unreachable!(), _ => unreachable!(), } }