Your comments were quite educational for me. However, I did not fully understand your point quoted below. What is the danger of modifying the reference in a subroutine, and what should you do instead? Thanks.

"IMHO, passing in a reference to something into a subroutine, only to have it be modified in the subroutine can have the same unintended side effects that people face when using global variables. In general, I think if you can help it, don't do it."

In reply to Re: (dkubb) Re: (2) An exercise in "That's not the way I'd do it" (TNTWIDI) by tenya
in thread An exercise in "That's not the way I'd do it" (TNTWIDI) by jcwren

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