rust/tests/compile-fail-norustc/copy_unaligned.rs
2019-07-20 22:38:41 +02:00

9 lines
322 B
Rust

//error-pattern: tried to access memory with alignment 1, but alignment 2 is required
fn main() {
let mut data = [0u16; 8];
let ptr = (&mut data[0] as *mut u16 as *mut u8).wrapping_add(1) as *mut u16;
// Even copying 0 elements to something unaligned should error
unsafe { ptr.copy_from(&data[5], 0); }
}