// Validation makes this fail in the wrong place // compile-flags: -Zmiri-disable-validation -Zmiri-seed=0000000000000000 // Even with intptrcast and without validation, we want to be *sure* to catch bugs // that arise from pointers being insufficiently aligned. The only way to achieve // that is not not let programs exploit integer information for alignment, so here // we test that this is indeed the case. fn main() { let x = &mut [0u8; 3]; let base_addr = x as *mut _ as usize; let u16_ref = unsafe { if base_addr % 2 == 0 { &mut *(base_addr as *mut u16) } else { &mut *((base_addr+1) as *mut u16) } }; *u16_ref = 2; //~ ERROR tried to access memory with alignment 1, but alignment 2 is required println!("{:?}", x); }