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//@ run-pass
// check that derive on a packed struct does not call field
// methods with a misaligned field.
use std::mem;
#[derive(Copy, Clone)]
struct Aligned(usize);
#[inline(never)]
fn check_align(ptr: *const Aligned) {
assert_eq!(ptr as usize % mem::align_of::<Aligned>(),
0);
}
impl PartialEq for Aligned {
fn eq(&self, other: &Self) -> bool {
check_align(self);
check_align(other);
self.0 == other.0
}
}
#[repr(packed)]
#[derive(Copy, Clone, PartialEq)]
struct Packed(Aligned, Aligned);
#[derive(PartialEq)]
#[repr(C)]
struct Dealigned<T>(u8, T);
fn main() {
let d1 = Dealigned(0, Packed(Aligned(1), Aligned(2)));
let ck = d1 == d1;
assert!(ck);
}
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