xxh.h

/* BSD 2-Clause License
 *
 * Copyright (c) 2018, Wojciech Owczarek
 * All rights reserved.
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/**
 * @file   xxh.h
 * @date   Fri Sep 14 23:27:00 2018
 *
 * @brief  An implemantation of xxHash by Yann Collet
 *
 */

#ifndef XXH_H_
#define XXH_H_

#include <stdint.h>

/* these are placed in the header so they can be reused */

/* rotate left. any decent compiler should turn this into rol (or ror on little-endians) */
#define rol32(var, pos) (((var) << pos) | ((var) >> (32 - pos)))
/* rotate right - same */
#define ror32(var, pos) (((var) >> pos) | ((var) << (32 - pos)))

uint32_t xxHash32(const void* in, const size_t len);

#endif /* XXH_H_ */