42 lines
1.4 KiB
C
42 lines
1.4 KiB
C
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// Copyright 2018 The Abseil Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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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 ABSL_HASH_INTERNAL_CITY_CRC_H_
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#define ABSL_HASH_INTERNAL_CITY_CRC_H_
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#include "absl/hash/internal/city.h"
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namespace absl {
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namespace hash_internal {
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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_t *result);
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} // namespace hash_internal
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} // namespace absl
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#endif // ABSL_HASH_INTERNAL_CITY_CRC_H_
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