3 ms·

This needs a 2001 tag, particular since it is no longer the case as others have pointed out.

• masklinn 12y ago
  It is probably the case in other languages though (I believe — though I'm open to being wrong — it is in Go, string slicing is implemented through array slicing, so a substring will share the parent string's storage and keep it alive).
  • deleted 12y ago
    [deleted]
    • masklinn 12y ago
      > substrings are mutable Are you sure? I know that a byte slice []byte is mutable, but I thought slicing a string yielded a string (and strings are immutable), an explicit conversion (and copy) is needed to get the underlying byte slice.
      • pcwalton 12y ago
        Oh yes, my mistake, they're immutable. I was thinking of []byte.