$[ is nasty, nasty, nasty, and is deprecated. If all Perl had to be written on the off chance that $[ may have changed, almost no Perl project would get completed.

For any new code it should be completely safe to ignore $[. About the only good use I can think of for it is to write nasty obfu code, or maybe for Golf.

Perl is Huffman encoded by design.

In reply to Re^3: assigning the maximum of two numbers by GrandFather
in thread assigning the maximum of two numbers by bageler

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