And why do you want to do that??
Um, because I can?
I am in the habit of testing everything, by which I mean "try to break it". Even small demo scripts for PerlMonks. It's just a habit of mine. Just as I never ever start a script without use strict;. My eyes are too old, my brain is too scattered (running ahead to the next thing while my fingers are still typing) ... too many times I've typed $thing{thang} when I meant $thing->{thang}, and so on and so on.
So, while I was "fooling" with the version of the script I made for the OP, and yours, I was throwing random values at it, to see what it would do. I threw some large numbers to see how line wrapping would affect it, and then I threw π at it. Of course I knew that such a value would break it: Array indices are supposed to must be integer values, as you point out above, and the matrix would break even if you could somehow pass in a non-integer.
What I found interesting, and what I drew to your attention since I thought you might also find it interesting, is that the two versions of the script output different values. Neither died nor threw an exception. Since the two versions of the code were almost identical, I found that odd.
I suspected the for loop, and roboticus very helpfully tracked down in the documentation and explained completely how Perl differs in handling
my $n = 3.14159; for (my $i=0; $i<$n; $i++)
and
my $n = 3.14159; for (0..$n)
Perhaps you already knew all about this, but I didn't, and I found it interesting, so I shared it.
Now you know why.
In reply to Re^4: Multidimentioal array
by 1nickt
in thread Multidimentioal array
by Subhrangshu Das
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