error[E0080]: evaluation of constant value failed --> $DIR/offset_from_ub.rs:18:27 | LL | let offset = unsafe { ptr_offset_from(field_ptr, base_ptr) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `ptr_offset_from` called on pointers into different allocations error[E0080]: evaluation of constant value failed --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL | LL | unsafe { intrinsics::ptr_offset_from(self, origin) } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | | | `ptr_offset_from` called on pointers into different allocations | inside `ptr::const_ptr::::offset_from` at $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL | ::: $DIR/offset_from_ub.rs:24:14 | LL | unsafe { (42 as *const u8).offset_from(&5u8) as usize } | ----------------------------------- inside `NOT_PTR` at $DIR/offset_from_ub.rs:24:14 error[E0080]: evaluation of constant value failed --> $DIR/offset_from_ub.rs:31:14 | LL | unsafe { ptr_offset_from(field_ptr, base_ptr as *const u16) } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ exact_div: 1_isize cannot be divided by 2_isize without remainder error[E0080]: evaluation of constant value failed --> $DIR/offset_from_ub.rs:37:14 | LL | unsafe { ptr_offset_from(ptr, ptr) } | ^^^^^^^^^^^^^^^^^^^^^^^^^ out-of-bounds offset_from: null pointer is a dangling pointer (it has no provenance) error[E0080]: evaluation of constant value failed --> $DIR/offset_from_ub.rs:44:14 | LL | unsafe { ptr_offset_from(ptr2, ptr1) } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ out-of-bounds offset_from: 0x8[noalloc] is a dangling pointer (it has no provenance) error[E0080]: evaluation of constant value failed --> $DIR/offset_from_ub.rs:53:14 | LL | unsafe { ptr_offset_from(end_ptr, start_ptr) } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ out-of-bounds offset_from: alloc18 has size 4, so pointer to 10 bytes starting at offset 0 is out-of-bounds error[E0080]: evaluation of constant value failed --> $DIR/offset_from_ub.rs:62:14 | LL | unsafe { ptr_offset_from(start_ptr, end_ptr) } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ out-of-bounds offset_from: alloc21 has size 4, so pointer to 10 bytes starting at offset 0 is out-of-bounds error[E0080]: evaluation of constant value failed --> $DIR/offset_from_ub.rs:70:14 | LL | unsafe { ptr_offset_from(end_ptr, end_ptr) } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ out-of-bounds offset_from: alloc24 has size 4, so pointer at offset 10 is out-of-bounds error[E0080]: evaluation of constant value failed --> $DIR/offset_from_ub.rs:79:14 | LL | unsafe { ptr_offset_from_unsigned(field_ptr, base_ptr) } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `ptr_offset_from_unsigned` called on pointers into different allocations error[E0080]: evaluation of constant value failed --> $DIR/offset_from_ub.rs:86:14 | LL | unsafe { ptr_offset_from(ptr2, ptr1) } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ `ptr_offset_from` called when first pointer is too far ahead of second error[E0080]: evaluation of constant value failed --> $DIR/offset_from_ub.rs:92:14 | LL | unsafe { ptr_offset_from(ptr1, ptr2) } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ `ptr_offset_from` called when first pointer is too far before second error[E0080]: evaluation of constant value failed --> $DIR/offset_from_ub.rs:99:14 | LL | unsafe { ptr_offset_from_unsigned(p, p.add(2) ) } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `ptr_offset_from_unsigned` called when first pointer has smaller offset than second: 0 < 8 error[E0080]: evaluation of constant value failed --> $DIR/offset_from_ub.rs:106:14 | LL | unsafe { ptr_offset_from_unsigned(ptr2, ptr1) } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `ptr_offset_from_unsigned` called when first pointer is too far ahead of second error[E0080]: evaluation of constant value failed --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL | LL | unsafe { intrinsics::ptr_offset_from(self, origin) } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | | | out-of-bounds offset_from: null pointer is a dangling pointer (it has no provenance) | inside `ptr::const_ptr::::offset_from` at $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL | ::: $DIR/offset_from_ub.rs:115:14 | LL | unsafe { ptr2.offset_from(ptr1) } | ---------------------- inside `OFFSET_VERY_FAR1` at $DIR/offset_from_ub.rs:115:14 error[E0080]: evaluation of constant value failed --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL | LL | unsafe { intrinsics::ptr_offset_from(self, origin) } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | | | out-of-bounds offset_from: null pointer is a dangling pointer (it has no provenance) | inside `ptr::const_ptr::::offset_from` at $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL | ::: $DIR/offset_from_ub.rs:121:14 | LL | unsafe { ptr1.offset_from(ptr2.wrapping_offset(1)) } | ----------------------------------------- inside `OFFSET_VERY_FAR2` at $DIR/offset_from_ub.rs:121:14 error: aborting due to 15 previous errors For more information about this error, try `rustc --explain E0080`.