• bleistift2@sopuli.xyzEnglish
    01·
    8 days ago

    linked lists, trees, objects with references to other objects

    That’s not a pointer to another pointer, but a pointer to a data structure that happens to contain another pointer.

    • Lightfire228@pawb.social
      1·
      8 days ago

      The distinction is meaningless in the land of Opcode’s and memory addresses

      For example, a struct is just an imaginary “overlay” on top of a contiguous section of memory

      Say you have a struct

      struct Thing {
  int a;
  int b;
  Thing* child;
}

Thing foo {}

      You could easily get a reference to foo->child->b by doing pointer arithmetic

      *((*((*foo) + size(int)*2)) +size(int))

      (I’ve not used C much so I’ve probably got the syntax wrong)