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
33namespace CityHash_v1_0_2
34{
35
36// Hash function for a byte array.
37uint128 CityHashCrc128(const char *s, size_t len);
38
39// Hash function for a byte array. For convenience, a 128-bit seed is also
40// hashed into the result.
41uint128 CityHashCrc128WithSeed(const char *s, size_t len, uint128 seed);
42
43// Hash function for a byte array. Sets result[0] ... result[3].
44void CityHashCrc256(const char *s, size_t len, uint64 *result);
45
46}
47
48#endif // CITY_HASH_CRC_H_
49