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Initial data commit

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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 72d218235f
commit f23f22d71c
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Task/CRC-32/Racket/crc-32.rkt Normal file
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#lang racket
(define (bytes-crc32 data)
(bitwise-xor
(for/fold ([accum #xFFFFFFFF])
([byte (in-bytes data)])
(for/fold ([accum (bitwise-xor accum byte)])
([num (in-range 0 8)])
(bitwise-xor (quotient accum 2)
(* #xEDB88320 (bitwise-and accum 1)))))
#xFFFFFFFF))
(define (crc32 s)
(bytes-crc32 (string->bytes/utf-8 s)))
(format "~x" (crc32 "The quick brown fox jumps over the lazy dog"))