some.cpp

#include <vector>
#include <numeric>
#include <algorithm>

#include <hpx/include/serialization.hpp>
#include <hpx/util/lightweight_test.hpp>

int main()
{
    static constexpr auto vector_size = HPX_ZERO_COPY_SERIALIZATION_THRESHOLD + 1u;

    std::vector<char> buffer;
    std::vector<hpx::serialization::serialization_chunk> chunks;
    hpx::serialization::output_archive oar{buffer, 0u, ~0u, &chunks};

    size_t size = 0u;
    {
        std::vector<unsigned char> array(vector_size);
        std::iota(std::begin(array), std::end(array), '\0');
        oar << hpx::serialization::make_array(array.data(), array.size());
        size = oar.bytes_written();
    }
    
    {
        hpx::serialization::input_archive iar{buffer, size, &chunks};
        std::vector<unsigned char> array(vector_size);
        iar >> hpx::serialization::make_array(array.data(), array.size());

        unsigned char k = '\0';
        for (const auto& i: array) HPX_TEST_EQ(i, k++);
    }

    return hpx::util::report_errors();
}