title: Adding an integer data type value to a pointer but not a double
body: <p>I'm having a little trouble understanding the following question. </p>
  
  <p>"Given that a pointer holds the value of a memory address, why is it permitted to add an integer data type to a pointer variable but not a double data type." </p>
  
  <p>I've got a feeling it may have something to do with address sizes? but I'm struggling with the mechanics of pointers right now =[ </p>