Re^2: split hash into two columns

Hi.

2 questions for you. I modified this code so I could save all the data.

What is $t ^= 1 doing? I've never seen ^= before.

Secondly, this is resulting in the data being separated from left to right order, not verticle.

10  9
8   7
6   5
4   3
[download]

instead of

10  5
9   4
8   3
7   2
6   1
[download]

How can I change it? Thanks!

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Re^3: split hash into two columns by ikegami (Patriarch) on Mar 27, 2006 at 23:48 UTC
Oops! Fixed in original node. I also made the code print both the keys and the values. `$a ^= $b` is a shortcut for `$a = $a ^ $b`. Both operators are documented in perlop. In context, `$t ^= 1` causes `$t` and the return value of the expression to flip-flip between zero and one every time it is executed (assuming `$t` is originally zero or one).	[reply] [d/l] [select]