34 lines
1.0 KiB
C++
34 lines
1.0 KiB
C++
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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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* Copyright 2015 Danny Robson <danny@nerdcruft.net>
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*/
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#ifndef __UTIL_HASH_FASTHASH_HPP
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#define __UTIL_HASH_FASTHASH_HPP
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#include <cstddef>
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#include <cstdint>
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// Zilong Tan's FastHash, via George Marsaglia's "Xorshift RNGs"
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namespace util { namespace hash { namespace fasthash {
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uint64_t mix (uint64_t);
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uint32_t hash32 (const void *restrict data, size_t len, uint32_t seed);
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uint64_t hash64 (const void *restrict data, size_t len, uint64_t seed);
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} } }
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#endif
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