error[E0080]: in-bounds pointer arithmetic failed: attempting to offset pointer by -$BYTES bytes, but got ALLOC0 which is at the beginning of the allocation --> $DIR/offset_ub.rs:8:46 | LL | pub const BEFORE_START: *const u8 = unsafe { (&0u8 as *const u8).offset(-1) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `BEFORE_START` failed here error[E0080]: in-bounds pointer arithmetic failed: attempting to offset pointer by $BYTES bytes, but got ALLOC1 which is only 1 byte from the end of the allocation --> $DIR/offset_ub.rs:9:43 | LL | pub const AFTER_END: *const u8 = unsafe { (&0u8 as *const u8).offset(2) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `AFTER_END` failed here error[E0080]: in-bounds pointer arithmetic failed: attempting to offset pointer by $BYTES bytes, but got ALLOC2 which is only $BYTES bytes from the end of the allocation --> $DIR/offset_ub.rs:10:45 | LL | pub const AFTER_ARRAY: *const u8 = unsafe { [0u8; 100].as_ptr().offset(101) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `AFTER_ARRAY` failed here error[E0080]: overflowing pointer arithmetic: the total offset in bytes does not fit in an `isize` --> $DIR/offset_ub.rs:12:43 | LL | pub const OVERFLOW: *const u16 = unsafe { [0u16; 1].as_ptr().offset(isize::MAX) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `OVERFLOW` failed here error[E0080]: overflowing pointer arithmetic: the total offset in bytes does not fit in an `isize` --> $DIR/offset_ub.rs:13:44 | LL | pub const UNDERFLOW: *const u16 = unsafe { [0u16; 1].as_ptr().offset(isize::MIN) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `UNDERFLOW` failed here error[E0080]: in-bounds pointer arithmetic failed: attempting to offset pointer by $BYTES bytes, but got 0xf..f[noalloc] which is a dangling pointer (it has no provenance) --> $DIR/offset_ub.rs:14:56 | LL | pub const OVERFLOW_ADDRESS_SPACE: *const u8 = unsafe { (usize::MAX as *const u8).offset(2) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `OVERFLOW_ADDRESS_SPACE` failed here error[E0080]: in-bounds pointer arithmetic failed: attempting to offset pointer by -$BYTES bytes, but got 0x1[noalloc] which is a dangling pointer (it has no provenance) --> $DIR/offset_ub.rs:15:57 | LL | pub const UNDERFLOW_ADDRESS_SPACE: *const u8 = unsafe { (1 as *const u8).offset(-2) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `UNDERFLOW_ADDRESS_SPACE` failed here error[E0080]: in-bounds pointer arithmetic failed: attempting to offset pointer by -$BYTES bytes, but got ALLOC3-0x2 which points to before the beginning of the allocation --> $DIR/offset_ub.rs:16:49 | LL | ...*const u8 = unsafe { [0u8; 1].as_ptr().wrapping_offset(-2).offset(-2) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `NEGATIVE_OFFSET` failed here error[E0080]: in-bounds pointer arithmetic failed: attempting to offset pointer by 1 byte, but got ALLOC4 which is at or beyond the end of the allocation of size $BYTES bytes --> $DIR/offset_ub.rs:18:50 | LL | pub const ZERO_SIZED_ALLOC: *const u8 = unsafe { [0u8; 0].as_ptr().offset(1) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `ZERO_SIZED_ALLOC` failed here error[E0080]: in-bounds pointer arithmetic failed: attempting to offset pointer by $BYTES bytes, but got 0x1[noalloc] which is a dangling pointer (it has no provenance) --> $DIR/offset_ub.rs:19:42 | LL | pub const DANGLING: *const u8 = unsafe { ptr::NonNull::::dangling().as_ptr().offset(4) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `DANGLING` failed here error[E0080]: in-bounds pointer arithmetic failed: attempting to offset pointer by -$BYTES bytes, but got 0xf..f[noalloc] which is a dangling pointer (it has no provenance) --> $DIR/offset_ub.rs:22:47 | LL | pub const UNDERFLOW_ABS: *const u8 = unsafe { (usize::MAX as *const u8).offset(isize::MIN) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `UNDERFLOW_ABS` failed here error: aborting due to 11 previous errors For more information about this error, try `rustc --explain E0080`.