Re: Calculating the crc checksum of a file using perl?

I don't know if this suffices, but there is some less obvious extremely core way using unpack:

my $sum = unpack "%64A*", $string;

See $ perldoc packtut for more details. (under the head "Doing sums)

Enjoy, Have FUN! H.Merijn

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Re^2: Calculating the crc checksum of a file using perl? by Anonymous Monk on Jul 09, 2011 at 15:13 UTC
http://perldoc.perl.org/perlpacktut.html#Doing-Sums	[reply]
Re^2: Calculating the crc checksum of a file using perl? by Anonymous Monk on Jul 09, 2011 at 16:22 UTC
As far as I know, what unpack does with "%" flag is just suming up the values and then modulate. CRC algorithm uses polynomial division and bitwise shifting instead of just summing things up, so I think they are quite different.	[reply]