rust/tests/compile-fail/cast_fn_ptr_unsafe2.rs

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// just making sure that fn -> unsafe fn casts are handled by rustc so miri doesn't have to
fn main() {
fn f() {}
let g = f as fn() as fn(i32) as unsafe fn(i32); //~ERROR: non-scalar cast: `fn()` as `fn(i32)`
unsafe {
g(42);
}
}