in reply to Re^7: Error when running on larger files
in thread Error when running on larger files

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

close ($OUT,$OUT2,$IN)

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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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Re^9: Error when running on larger files
by BrowserUk (Patriarch) on Jun 28, 2016 at 12:05 UTC

    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.

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      Makes sense. Thank you for your time and assistance!
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