Next

Program Repair Shop

189

$#array

      if ($#files > -1) { ... }

• $#array is not a red flag

• I did a study last year

        http://perl.plover.com/yak/flags/dollar-pound/

• Only about 20% of surveyed uses of $#array were incorrect

• A red flag is "almost always a mistake"

• $#array is only "often a mistake"

• Still, you should treat $#array with caution

• Many uses of $#array should have been @array instead

Next

Copyright © 2002 M. J. Dominus