//ignore-test FIXME: do some basic validation of invariants for all values in flight //This does currently not get caught becuase it compiles to SwitchInt, which //has no knowledge about data invariants. fn main() { assert!(std::char::from_u32(-1_i32 as u32).is_none()); let _ = match unsafe { std::mem::transmute::(-1) } { //~ ERROR constant evaluation error //~^ NOTE tried to interpret an invalid 32-bit value as a char: 4294967295 'a' => {true}, 'b' => {false}, _ => {true}, }; }