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https://github.com/eclipse-openvehicle-api/openvehicle-api.git
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65 lines
1.4 KiB
C++
65 lines
1.4 KiB
C++
/********************************************************************************
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* Copyright (c) 2025-2026 ZF Friedrichshafen AG
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*
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* This program and the accompanying materials are made available under the
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* terms of the Apache License Version 2.0 which is available at
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Contributors:
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* Erik Verhoeven - initial API and implementation
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********************************************************************************/
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#ifndef HASH_CALC_H
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#define HASH_CALC_H
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#ifdef _MSC_VER
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// Prevent warnings for XXHash during static code analysis.
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#pragma warning(push)
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#pragma warning(disable : 26812 26451)
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#endif
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#define XXH_INLINE_ALL
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#include <xxhash.h>
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#ifdef _MSC_VER
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#pragma warning(pop)
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#endif
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#include <string>
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/**
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* @brief Calculate a hash value
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*/
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class CHashObject
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{
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public:
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/**
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* @brief Constructor
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*/
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CHashObject();
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/**
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* @brief Destructor
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*/
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~CHashObject();
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/**
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* @brief Shift operator adding a string to the hash.
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* @param[in] rssString Reference to the string.
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* @return
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*/
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CHashObject& operator<<(const std::string& rssString);
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/**
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* @brief Get the current hash value.
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* @return The hash value.
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*/
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uint64_t GetHash() const;
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private:
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XXH64_state_t* m_state = nullptr; ///< Hash state
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};
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#endif // !defined(HASH_CALC_H)
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