Page 237 of my copy of Programming Perl (2d edition) has this:

undef $/; # That's what's in the book;  local $/ may be better.
$checksum = unpack("%32C*",<>) %32767;

[download]
which is claimed to produce "the same number as the System V sum program".

This may be supercheap; it's certainly pretty short.

emc

" The most likely way for the world to be destroyed, most experts agree, is by accident. That's where we come in; we're computer professionals. We cause accidents."
—Nathaniel S. Borenstein

In reply to Re: Simple Digests? by swampyankee
in thread Simple Digests? by pileofrogs

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