rust/tests/compile-fail/unaligned_pointers/unaligned_ptr3.rs

14 lines
639 B
Rust

// This should fail even without validation or Stacked Borrows.
// compile-flags: -Zmiri-disable-validation -Zmiri-disable-stacked-borrows
fn main() {
for _ in 0..10 { // Try many times as this might work by chance.
let x = [2u16, 3, 4, 5]; // Make it big enough so we don't get an out-of-bounds error.
let x = &x[0] as *const _ as *const *const u8; // cast to ptr-to-ptr, so that we load a ptr
// This must fail because alignment is violated. Test specifically for loading pointers,
// which have special code in miri's memory.
let _x = unsafe { *x };
//~^ ERROR but alignment
}
}