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// run-pass
#![allow(dead_code)]
#![allow(unused_comparisons)]
use std::mem;
#[repr(packed)]
struct P1<T, S> {
a: T,
b: u8,
c: S
}
#[repr(packed(2))]
struct P2<T, S> {
a: T,
b: u8,
c: S
}
#[repr(C, packed(4))]
struct P4C<T, S> {
a: T,
b: u8,
c: S
}
macro_rules! check {
($t:ty, $align:expr, $size:expr) => ({
assert_eq!(mem::align_of::<$t>(), $align);
assert_eq!(mem::size_of::<$t>(), $size);
});
}
pub fn main() {
check!(P1::<u8, u8>, 1, 3);
check!(P1::<u64, u16>, 1, 11);
check!(P2::<u8, u8>, 1, 3);
check!(P2::<u64, u16>, 2, 12);
check!(P4C::<u8, u8>, 1, 3);
check!(P4C::<u16, u64>, 4, 12);
}
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