tests/ui/extern/extern-fn-pointer-clone-copy.rs

//! regression test for <https://github.com/rust-lang/rust/issues/24161>
//@ check-pass
#![allow(dead_code)]
#[derive(Copy, Clone)]
struct Functions {
    a: fn(u32) -> u32,
    b: extern "C" fn(u32) -> u32,
    c: unsafe fn(u32) -> u32,
    d: unsafe extern "C" fn(u32) -> u32,
}

pub fn main() {}