.homeworks/hw5/Post.cpp
/* clone a post object
 * that have the same value but on different address */
clone a post object
that have the same value but on different address
clone a post object that have the same value but on different address
Post* Post::clone()
{
    Post* newPost = new Post(this->toJson());
    return newPost;
}
Post * Post :: clone ( ) { Post * newPost = new Post ( this -> toJson ( ) ) ; return newPost ; }
clone a post object
 that have the same value but on different address
clone a post object that have the same value but on different address