[Rd] Can crc32() assume to be available at the C level?

From: Dirk Eddelbuettel <edd_at_debian.org>
Date: Tue 01 Mar 2005 - 13:17:36 GMT

Dear R-develers,

Antoine Lucas suggested extending my small digest package (which provides md5 and sha-1 digests of R objects, which it are serialized if needed) with a crc32 function, and provided a fairly complete patch.

We are now wondering if we should play it safe and bundle crc32.c (plus utils) in the digest sources (as I do with md5 and sha1), or if we can assume that crc32 is present on all R platforms thanks to zlib.

Is that the case? If so, is it a good idea to use it even though it doesn't appear in the header files? Or should we package "our" copy?

Thanks in advance for any advice, Dirk

Better to have an approximate answer to the right question than a precise 
answer to the wrong question.  --  John Tukey as quoted by John Chambers

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Received on Wed Mar 02 00:26:03 2005

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