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196

Special Cases

      if (@files) {
        foreach (@files) {
          unlink("$dir/$_") || &err("can't delete $_ : $!");
        }
      }

• We have seen this before

• Here the if test is unnecessary

• If @files is empty, the loop is self-skipping

• Avoid Special Cases

  • If the code is well-designed, it can often handle both cases the same way

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Copyright © 2002 M. J. Dominus