Method copy_data

cpp/nd/impl/stacked_array.hpp:85–93

    }

    void copy_data(std::span<uint8_t> buffer) const
    {
        auto volume = std::accumulate(shape_.begin(), shape_.end(), 1L, std::multiplies<int64_t>()) * sizeof(T);
        auto vol1 = volume * a1_.size() / (a1_.size() + a2_.size());
        auto sp1 = std::span<uint8_t>(buffer.data(), vol1);
        auto sp2 = std::span<uint8_t>(buffer.data() + vol1, volume - vol1);
        nd::copy_data(a1_, base::span_cast<uint8_t>(sp1));
        nd::copy_data(a2_, base::span_cast<uint8_t>(sp2));
    }

    uint8_t dimensions() const
    {