Re: Re: Re: Answer: How do I find the index of the last element in an array?

No, I don't think so. If @foo is empty, then scalar(@foo) is zero, not undef, and the equality holds true... (actually undef == 0 is also true, though it emits a warning)

The only time @foo != $#foo + 1 is when you messed with $[ (but you didn't do that, did you?)

--
3dan

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Re: Re: Re: Re: Answer: How do I find the index of the last element in an array? by tommyw (Hermit) on Jun 02, 2003 at 14:50 UTC
Ack. Damn those non-scalar contexts! `perl -e 'print $#a, "\n", @a, "\n", $#a+1, "\n"' -1 0` [download] Thus clearly showing that @a is undef. Which is true. In a list context... If I'd remembered to include scalar around it: `perl -e 'print $#a, "\n", scalar (@a), "\n", $#a+1, "\n"' -1 0 0` [download] , I'd have got the right answer... My bad. -- Tommy Too stupid to live. Too stubborn to die.	[reply] [d/l] [select]