HashUtils.h

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#pragma once
 
#include <cstddef>
#include <cstdint>
#include <vector>
 
namespace inno::detail
{
    inline std::size_t HashCombine(std::size_t seed, std::size_t value) noexcept
    {
        constexpr std::size_t MixConstant = 0x9e3779b9U; // fractional part of 2^32 / phi (golden ratio)
        constexpr std::size_t ShiftLeft = 6U;
        constexpr std::size_t ShiftRight = 2U;
        return seed ^ (value + MixConstant + (seed << ShiftLeft) + (seed >> ShiftRight));
    }
 
    inline std::size_t HashBytes(const std::vector<uint8_t>& data) noexcept
    {
        std::size_t seed = data.size();
        for (const uint8_t byte : data)
        {
            seed = HashCombine(seed, static_cast<std::size_t>(byte));
        }
        return seed;
    }
} // namespace inno::detail