// run-pass use std::hint; struct U16(u16); impl Drop for U16 { fn drop(&mut self) { // Prevent LLVM from optimizing away our alignment check. assert!(hint::black_box(self as *mut U16 as usize) % 2 == 0); } } struct HasDrop; impl Drop for HasDrop { fn drop(&mut self) {} } struct Wrapper { _a: U16, b: HasDrop, } #[repr(packed)] struct Misalign(u8, Wrapper); fn main() { let m = Misalign( 0, Wrapper { _a: U16(10), b: HasDrop, }, ); // Put it somewhere definitely even (so the `a` field is definitely at an odd address). let m: ([u16; 0], Misalign) = ([], m); // Move out one field, so we run custom per-field drop logic below. let _x = m.1.1.b; }