error[E0080]: evaluation of constant value failed --> $DIR/ref_to_int_match.rs:24:27 | LL | const BAR: Int = unsafe { Foo { r: &42 }.f }; | ^^^^^^^^^^^^^^^^ unable to turn pointer into integer | = help: this code performed an operation that depends on the underlying bytes representing a pointer = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported error: could not evaluate constant pattern --> $DIR/ref_to_int_match.rs:7:14 | LL | 10..=BAR => {}, | ^^^ error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0080`.