src/citycrc.h

/* citycrc.h - cityhash-c
 * CityHash on C
 * Copyright (c) 2011-2012, Alexander Nusov
 *
 * - original copyright notice -
 * Copyright (c) 2011 Google, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 * CityHash, by Geoff Pike and Jyrki Alakuijala
 *
 * This file declares the subset of the CityHash functions that require
 * _mm_crc32_u64().  See the CityHash README for details.
 *
 * Functions in the CityHash family are not suitable for cryptography.
 */
#ifndef CITY_HASH_CRC_H_
#define CITY_HASH_CRC_H_

#include "city.h"

/* Hash function for a byte array. */
uint128 CityHashCrc128(const char *s, size_t len);

/* Hash function for a byte array.  For convenience, a 128-bit seed is also
 * hashed into the result. */
uint128 CityHashCrc128WithSeed(const char *s, size_t len, uint128 seed);

/* Hash function for a byte array.  Sets result[0] ... result[3]. */
void CityHashCrc256(const char *s, size_t len, uint64 *result);

#endif /* CITY_HASH_CRC_H_ */