1 // Make sure we find these even with many checks disabled.
2 //@compile-flags: -Zmiri-disable-alignment-check -Zmiri-disable-stacked-borrows -Zmiri-disable-validation
4 // Test what happens when we overwrite parts of a pointer.
5 // Also see <https://github.com/rust-lang/miri/issues/2181>.
10 let ptr: *mut _ = &mut p;
11 *(ptr as *mut u8) = 123; // if we ever support 8 bit pointers, this is gonna cause
12 // "attempted to interpret some raw bytes as a pointer address" instead of
13 // "attempted to read undefined bytes"
15 let x = *p; //~ ERROR: this operation requires initialized memory
16 panic!("this should never print: {}", x);