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
   |
   = note: `ptr_offset_from` called on pointers into different allocations
   |
note: inside `std::ptr::const_ptr::<impl *const u8>::offset_from`
  --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL
note: inside `NOT_PTR`
  --> $DIR/offset_from_ub.rs:24:14
   |
LL |     unsafe { (42 as *const u8).offset_from(&5u8) as usize }
   |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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`: ALLOC0 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`: ALLOC1 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`: ALLOC2 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
   |
   = note: out-of-bounds `offset_from`: null pointer is a dangling pointer (it has no provenance)
   |
note: inside `std::ptr::const_ptr::<impl *const u8>::offset_from`
  --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL
note: inside `OFFSET_VERY_FAR1`
  --> $DIR/offset_from_ub.rs:115:14
   |
LL |     unsafe { ptr2.offset_from(ptr1) }
   |              ^^^^^^^^^^^^^^^^^^^^^^

error[E0080]: evaluation of constant value failed
  --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL
   |
   = note: out-of-bounds `offset_from`: null pointer is a dangling pointer (it has no provenance)
   |
note: inside `std::ptr::const_ptr::<impl *const u8>::offset_from`
  --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL
note: inside `OFFSET_VERY_FAR2`
  --> $DIR/offset_from_ub.rs:121:14
   |
LL |     unsafe { ptr1.offset_from(ptr2.wrapping_offset(1)) }
   |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: aborting due to 15 previous errors

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