lib/zlib/crc32.c

1 /* crc32.c -- compute the CRC-32 of a data stream
17   one thread to use crc32().
19   MAKECRCH can be #defined to write out crc32.h. A main() routine is also
42   crc32.h would need to be regenerated, if the maximum N value is increased.
145 #  include "crc32.h"
339           The crc32.h header file contains tables for both 32-bit and 64-bit
345 #  error Need a 64-bit integer type in order to generate crc32.h.
352         out = fopen("crc32.h", "w");
355         /* write out little-endian CRC table to crc32.h */
357             "/* crc32.h -- tables for rapid CRC calculation\n"
358             " * Generated automatically by crc32.c\n */\n"
366         /* write out big-endian CRC table for 64-bit z_word_t to crc32.h */
379         /* write out big-endian CRC table for 32-bit z_word_t to crc32.h */
401             /* write out braid tables for 64-bit z_word_t to crc32.h */
427             /* write out braid tables for 32-bit z_word_t to crc32.h */
458         /* write out zeros operator table to crc32.h */
546  * This function can be used by asm versions of crc32(), and to force the
562  * -march=armv8-a+crc, or -march=native if the compile machine has the crc32
1015 unsigned long ZEXPORT crc32(unsigned long crc, const unsigned char FAR *buf,