You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: zero_offset.rs
    path of file: ./repos/rust-clippy/tests/ui
    
    the code of the file until where you have to start completion: #[allow(clippy::borrow_as_ptr)]
fn main() {
    unsafe {
        let m = &mut () as *mut ();
        m.offset(0);
        //~^ ERROR: offset calculation on zero-sized value
        //~| NOTE: `#[deny(clippy::zst_offset)]` on by default
        m.wrapping_add(0);
        //~^ ERROR: offset calculation on zer
    
fn main() {
    unsafe {
        let m = &mut () as *mut ();
        m.offset(0);
        //~^ ERROR: offset calculation on zero-sized value
        //~| NOTE: `#[deny(clippy::zst_offset)]` on by default
        m.wrapping_add(0);
        //~^ ERROR: offset calculation on zero-sized value
        m.sub(0);
        //~^ ERROR: offset calculation on zero-sized value
        m.wrapping_sub(0);
        //~^ ERROR: offset calculation on zero-sized value

        let c = &() as *const ();
        c.offset(0);
        //~^ ERROR: offset calculation on zero-sized value
        c.wrapping_add(0);
        //~^ ERROR: offset calculation on zero-sized value
        c.sub(0);
        //~^ ERROR: offset calculation on zero-sized value
        c.wrapping_sub(0);
        //~^ ERROR: offset calculation on zero-sized value

        let sized = &1 as *const i32;
        sized.offset(0);
    }
}