title: Copy 2D array using memcpy
body: <p>I wanna use memcpy but its usually define as a pointer. can we assign a new memory to an array with this function?</p>
  
  <p>for example we have a <code>matrix1[13][15]</code> and we want to assign it to <code>matrix2[13][15]</code> while these two arrays are independent.</p>