CRC32              28 standard/crc32.h #define CRC32(crc, ch)	 (crc = (crc >> 8) ^ crc32tab[(crc ^ (ch)) & 0xff])
CRC32              54 zip/lib/zip_source_pkware.c #define CRC32(c, b) (crc[((c) ^ (b)) & 0xff] ^ ((c) >> 8))