On Aug 12, 2004, at 11:31 AM, Greg London wrote:
Whether lc(undef) should return undef or '', I'm not sure. It should throw a warning, at the very least.
FWIW, I agree it should at least throw a warning.
Returning undef from lc(undef) is 'what I expect'. But that behavior would perhaps conflict with other uses to produce outcomes that are 'what I didn't expect'. I was just curious as to what those other uses or factors might be, which would complete the sentence "Of course lc() can't return undef because...".
Thanks for your replies,
Bogart
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