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 FileMaker Pro Custom Functions

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ChecksumAdler32 ( text ; seed1 ; seed2 )

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  Average rating: 4.3  (39 votes)
  Discuss this Custom Function

Vaughan Bromfied, Vaughan Bromfield design
http://google.com

Creates a checksum of the input text bases on the Adler-32 algorithm.

Sample Input:
ChecksumAdler32 ( "wikipedia" ; 1 ; 0 )
Sample Output:
319161272


 Then copy & paste into FileMaker Advanced's Edit Custom Function window.

Description:

ChecksumAdler32 ( text ; seed1 ; seed2 )

The initial values for seed1 and seed2 must be 1 and 0 respectively.

Adler-32 is a checksum algorithm which was invented by Mark Adler.
This custom function was written by Vaughan Bromfield <vbromfield@optusnet.com.au>.

This function is based on the algorithm published on the Adler-32 page on Wikipedia (accessed 2010-02-17)

http://en.wikipedia.org/wiki/Adler-32

The published algorithm used ASCII encoding and returns a hexadecimal result; this cf implementation uses Unicode encoding and returns a decimal (base 10) result.

There may be other differences.

All care taken but no responsibility. Your mileage may vary.

Note: these functions are not guaranteed or supported by BrianDunning.com. Please contact the individual developer with any questions or problems.

This is my Custom Function and I want to edit it

Discuss:

Could the people that rate the function poorly please add a comment to let me know what the disappointment is. Thanks - Vaughan.

Vaughan Bromfield, Sydney, Australia
November 11, 2010 8:35pm

Make a comment about this Custom Function (please try to keep it brief & to the point). Anyone can post:

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