3 ms·

One solution to that is have inherently modular array indexing, so that any index is valid. If A[1] is the first element, then A[0] would be the last; etc

• 0-_-0 5y ago
  That's a good idea!
• mst 5y ago
  I do appreciate languages that allow -1 for the last index.
  • layer8 5y ago
    That makes it difficult to calculate the distance (length of the slice) between two arbitrary indices though.
    • romwell 5y ago
      Well, that's when you can use the mod operator instead of having to do it when indexing into an array (a much more common operation).