Calling a function with empty parens, dostuff(), passes an empty parameter list. The @_ array in the called function will be empty. Of course, by putting parameters in the parens, you will pass them.

Calling a function with the ampersand, &dostuff, will pass the current contents of @_ to the called sub. This can be very useful for exception handling, OO programming, or perhaps if you rename a function but want to keep the old function around because others are still using your code.

Cheers,
Ovid

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