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https://github.com/ClickHouse/ClickHouse.git
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44 lines
1.8 KiB
C
44 lines
1.8 KiB
C
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// Copyright (c) 2011 Google, Inc.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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//
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// CityHash, by Geoff Pike and Jyrki Alakuijala
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//
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// This file declares the subset of the CityHash functions that require
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// _mm_crc32_u64(). See the CityHash README for details.
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//
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// Functions in the CityHash family are not suitable for cryptography.
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#ifndef CITY_HASH_CRC_H_
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#define CITY_HASH_CRC_H_
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#include <city.h>
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// Hash function for a byte array.
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uint128 CityHashCrc128(const char *s, size_t len);
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// Hash function for a byte array. For convenience, a 128-bit seed is also
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// hashed into the result.
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uint128 CityHashCrc128WithSeed(const char *s, size_t len, uint128 seed);
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// Hash function for a byte array. Sets result[0] ... result[3].
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void CityHashCrc256(const char *s, size_t len, uint64 *result);
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#endif // CITY_HASH_CRC_H_
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