debian man page for swiss::crc64

SWISS::CRC64(3pm)					User Contributed Perl Documentation					 SWISS::CRC64(3pm)

CRC64 perl module documentation
   NAME
       CRC64 - Calculate the cyclic redundancy check.

   SYNOPSIS
	  use SWISS::CRC64;

	  $crc = SWISS::CRC64::crc64("IHATEMATH");
	  #returns the string "E3DCADD69B01ADD1"

	  ($crc_low, $crc_high) = SWISS::CRC64::crc64("IHATEMATH");
	  #returns two 32-bit unsigned integers, 3822890454 and 2600578513

   DESCRIPTION
       SWISS-PROT + TREMBL use a 64-bit Cyclic Redundancy Check for the amino acid sequences.

       The algorithm to compute the CRC is described in the ISO 3309 standard.	The generator polynomial is x64 + x4 + x3 + x + 1.  Reference: W.
       H. Press, S. A. Teukolsky, W. T. Vetterling, and B. P.  Flannery, "Numerical recipes in C", 2nd ed., Cambridge University Press. Pages
       896ff.

   Functions
       crc64 string
	   Calculate the CRC64 (cyclic redundancy checksum) for string.

	   In array context, returns two integers equal to the higher and lower 32 bits of the CRC64. In scalar context, returns a 16-character
	   string containing the CRC64 in hexadecimal format.

AUTHOR
       Alexandre Gattiker, gattiker@isb-sib.ch

ACKNOWLEDGEMENTS
       Based on SPcrc, a C implementation by Christian Iseli, available at ftp://ftp.ebi.ac.uk/pub/software/swissprot/Swissknife/old/SPcrc.tar.gz

perl v5.10.1							    2006-01-26							 SWISS::CRC64(3pm)