Shared via Rust Playground

playground.rs

use std::ptr::copy_nonoverlapping;


fn memcpy<T>(src: &[T], dst: &mut T) -> Result<(),()> {
    if src.len() != dst.len() {
        return Er(());
    }
    let len = src.len();
    unsafe {
        copy_nonoverlapping(src.as_ptr(), dst.as_mut_ptr(), len);
    }
    return Ok(());
}