27 lines
773 B
C
27 lines
773 B
C
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// Copyright (c) 2018 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#ifndef BITCOIN_UTIL_BYTEVECTORHASH_H
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#define BITCOIN_UTIL_BYTEVECTORHASH_H
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#include <stdint.h>
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#include <vector>
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/**
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* Implementation of Hash named requirement for types that internally store a byte array. This may
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* be used as the hash function in std::unordered_set or std::unordered_map over such types.
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* Internally, this uses a random instance of SipHash-2-4.
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*/
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class ByteVectorHash final
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{
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private:
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uint64_t m_k0, m_k1;
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public:
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ByteVectorHash();
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size_t operator()(const std::vector<unsigned char>& input) const;
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};
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#endif // BITCOIN_UTIL_BYTEVECTORHASH_H
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