OK. That helps.

I'm not sure why you are getting the warning on line 157. I suspect the problem may be somewhat related to your use of "tell" and "seek". I do not have much experience with these functions. It looks like you are reading the entire input file multiple times (once per time through your outer "while" loop).

Is it really necessary to do this? Would it not be simpler and more efficient to slurp the contents of the input file into an array variable once, then use a "for" loop to process that array? Is input file size an issue?

In reply to Re^3: finding the right corresponding element by toolic
in thread finding the right corresponding element by steph_bow

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