#![allow(dead_code, deprecated, unused_variables, unused_mut)]
fn main() {
    #[cfg(not(miri))]
    {
        let fnptr: fn(i32) -> i32 = |x| x + 2;
        let fnptr_addr = fnptr as usize;
        let fnptr = fnptr_addr as *const ();
        let fnptr: fn(i32) -> i32 = unsafe { std::mem::transmute(fnptr) };
        assert_eq!(fnptr(40), 42);
    }
}