rust/tests/compile-fail/cast_box_int_to_fn_ptr.rs
2019-07-23 23:25:06 +02:00

12 lines
297 B
Rust

// Validation makes this fail in the wrong place
// compile-flags: -Zmiri-disable-validation
fn main() {
let b = Box::new(42);
let g = unsafe {
std::mem::transmute::<&Box<usize>, &fn(i32)>(&b)
};
(*g)(42) //~ ERROR tried to treat a memory pointer as a function pointer
}