Some operating systems support "memory mapped files," and there may indeed be a module which offers an API to such features in Perl.

But memory mapped files are just glossing over the details of the inevitable: the only way to change some bits on a drive is to read the drive, modify the bits, and write the bits onto the drive. What the API looks like doesn't really change that.

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[ e d @ h a l l e y . c c ]

In reply to Re: Is it possible to alter a flat file in memory? by halley
in thread Is it possible to alter a flat file in memory? by Anonymous Monk

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