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 two different pointers that are not both derived from the same allocation

error[E0080]: evaluation of constant value failed
  --> $DIR/offset_from_ub.rs:24:14
   |
LL |     unsafe { (42 as *const u8).offset_from(&5u8) as usize }
   |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `ptr_offset_from` called on two different pointers that are not both derived from the same allocation
   |
note: inside `std::ptr::const_ptr::<impl *const u8>::offset_from`
  --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL

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:38:14
   |
LL |     unsafe { ptr_offset_from(ptr2, ptr1) }
   |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^ `ptr_offset_from` called on two different pointers that are not both derived from the same allocation

error[E0080]: evaluation of constant value failed
  --> $DIR/offset_from_ub.rs:47:14
   |
LL |     unsafe { ptr_offset_from(end_ptr, start_ptr) }
   |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `ptr_offset_from` called on two different pointers where the memory range between them is not in-bounds of an allocation

error[E0080]: evaluation of constant value failed
  --> $DIR/offset_from_ub.rs:56:14
   |
LL |     unsafe { ptr_offset_from(start_ptr, end_ptr) }
   |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `ptr_offset_from` called on two different pointers where the memory range between them is not in-bounds of an allocation

error[E0080]: evaluation of constant value failed
  --> $DIR/offset_from_ub.rs:65:14
   |
LL |     unsafe { ptr_offset_from_unsigned(field_ptr, base_ptr) }
   |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `ptr_offset_from_unsigned` called on two different pointers that are not both derived from the same allocation

error[E0080]: evaluation of constant value failed
  --> $DIR/offset_from_ub.rs:72:14
   |
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:78:14
   |
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:86:14
   |
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:93:14
   |
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:100:14
   |
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
  --> $DIR/offset_from_ub.rs:109:14
   |
LL |     unsafe { ptr2.offset_from(ptr1) }
   |              ^^^^^^^^^^^^^^^^^^^^^^ `ptr_offset_from` called on two different pointers that are not both derived from the same allocation
   |
note: inside `std::ptr::const_ptr::<impl *const u8>::offset_from`
  --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL

error[E0080]: evaluation of constant value failed
  --> $DIR/offset_from_ub.rs:115:14
   |
LL |     unsafe { ptr1.offset_from(ptr2.wrapping_offset(1)) }
   |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `ptr_offset_from` called when first pointer is too far before second
   |
note: inside `std::ptr::const_ptr::<impl *const u8>::offset_from`
  --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL

error: aborting due to 14 previous errors

For more information about this error, try `rustc --explain E0080`.