in reply to Re^5: Error when running on larger files
in thread Error when running on larger files

How bizarre. I've tried running it on 5.25.2 and 5.24.0 installed via Perlbrew. Same error each time.

It seems to be caused by something earlier in the script (this chunk of code forms a subsection of it) - running my file using your wrapped code allows it to run to completion.

Why exactly it fails near the end of a file when it's part of a larger script but not when it's separate is beyond me.

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Re^7: Error when running on larger files
by BrowserUk (Patriarch) on Jun 28, 2016 at 10:30 UTC
    It seems to be caused by something earlier in the script

    Does the earlier code read the same file? Does the earlier code use much memory?

    Perhaps you should post the entire script.

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[reply]

      I've found the cause. I used incorrect syntax to try and close multiple filehandles

      close ($OUT,$OUT2,$IN)

      [download]

      But despite using warnings + strict, I never received a message about this until I switched back to the system Perl. As the input file for this chunk of code is created earlier in the script - not having the filehandle closed led to the error.

      I'm still unclear as to how the script was able to run to completion on some, typically smaller input files - but not others given that almost no memory is required until this step.

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[d/l]

        Nice one! (As in, nice bug, if bugs are ever nice.)

        I'm still unclear as to how the script was able to run to completion on some, typically smaller input files - but not others given that almost no memory is required until this step.

        It probably depended on buffering. If the file wasn't close properly, some small portion of the file could remain unwritten depending on the number and length of lines.

        With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
        Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
        "Science is about questioning the status quo. Questioning authority". I knew I was on the right track :)
        In the absence of evidence, opinion is indistinguishable from prejudice. Not understood.
[reply]

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