1 // Copyright (c) 2011 Google, Inc. 2 // 3 // Permission is hereby granted, free of charge, to any person obtaining a copy 4 // of this software and associated documentation files (the "Software"), to deal 5 // in the Software without restriction, including without limitation the rights 6 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 7 // copies of the Software, and to permit persons to whom the Software is 8 // furnished to do so, subject to the following conditions: 9 // 10 // The above copyright notice and this permission notice shall be included in 11 // all copies or substantial portions of the Software. 12 // 13 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 14 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 15 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 16 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 17 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 18 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 19 // THE SOFTWARE. 20 // 21 // CityHash, by Geoff Pike and Jyrki Alakuijala 22 // 23 // This file declares the subset of the CityHash functions that require 24 // _mm_crc32_u64(). See the CityHash README for details. 25 // 26 // Functions in the CityHash family are not suitable for cryptography. 27 28 #ifndef CITY_HASH_CRC_H_ 29 #define CITY_HASH_CRC_H_ 30 31 #include "city.h" 32 33 // Hash function for a byte array. 34 uint128 CityHashCrc128(const char *s, size_t len); 35 36 // Hash function for a byte array. For convenience, a 128-bit seed is also 37 // hashed into the result. 38 uint128 CityHashCrc128WithSeed(const char *s, size_t len, uint128 seed); 39 40 // Hash function for a byte array. Sets result[0] ... result[3]. 41 void CityHashCrc256(const char *s, size_t len, uint64 *result); 42 43 #endif // CITY_HASH_CRC_H_ 44