He made an error (concatenated two variable without giving either a value) and Perl issued a message in response to that error.

Then we have different definitions of error and warning.

The OP concatenated nothing to nothing (and thus wastes a cycle of that loop) but his output is still correct. In my book that is not an error, but it does warrant a warning as it can be written better.

CountZero

A program should be light and agile, its subroutines connected like a string of pearls. The spirit and intent of the program should be retained throughout. There should be neither too little or too much, neither needless loops nor useless variables, neither lack of structure nor overwhelming rigidity." - The Tao of Programming, 4.1 - Geoffrey James

In reply to Re^3: How to use __DATA__ efficiently, help! by CountZero
in thread How to use __DATA__ efficiently, help! by Anonymous Monk

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