Re: readdir formulated badly? gives wrong count

[Rob Dixon]

Matthew Whipple wrote:

The for loop won't execute if it has nothing through which to iterate. On my system the for won't execute with an empty list, but will once

when the array is undefined.  Changing the above to 'if
(defined(@DirContent)) {' would be a bit clearer.

Now what would you mean by an array being undefined? If you write

  @a = undef;

you have assigned the single-element list (undef) to @a, which I
wouldn't call being undefined. To empty an array you must write

  undef @a;

or

  @a = ()

Even then it's stretching it a bit to say that the array is 'undefined',
but at least there's nothing in it!

HTH,

Rob


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