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#ifndef CRC32_BRAID_P_H_
#define CRC32_BRAID_P_H_
#include "zendian.h"
/* Define N */
#ifdef Z_TESTN
# define N Z_TESTN
#else
# define N 5
#endif
#if N < 1 || N > 6
# error N must be in 1..6
#endif
/*
Define W and the associated z_word_t type. If W is not defined, then a
braided calculation is not used, and the associated tables and code are not
compiled.
*/
#ifdef Z_TESTW
# if Z_TESTW-1 != -1
# define W Z_TESTW
# endif
#else
# ifndef W
# if defined(__x86_64__) || defined(_M_AMD64) || defined(__aarch64__) || defined(_M_ARM64) || defined(__powerpc64__)
# define W 8
# else
# define W 4
# endif
# endif
#endif
#ifdef W
# if W == 8
typedef uint64_t z_word_t;
# else
# undef W
# define W 4
typedef uint32_t z_word_t;
# endif
#endif
#if BYTE_ORDER == LITTLE_ENDIAN
# define ZSWAPWORD(word) (word)
# define BRAID_TABLE crc_braid_table
#elif BYTE_ORDER == BIG_ENDIAN
# if W == 8
# define ZSWAPWORD(word) ZSWAP64(word)
# elif W == 4
# define ZSWAPWORD(word) ZSWAP32(word)
# endif
# define BRAID_TABLE crc_braid_big_table
#else
# error "No endian defined"
#endif
#define DO1 c = crc_table[(c ^ *buf++) & 0xff] ^ (c >> 8)
#define DO8 DO1; DO1; DO1; DO1; DO1; DO1; DO1; DO1
/* CRC polynomial. */
#define POLY 0xedb88320 /* p(x) reflected, with x^32 implied */
#endif /* CRC32_BRAID_P_H_ */
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