Method calc_bson_object_size

Source/Utils/json.hpp:13926–13935

! @brief Calculates the size of the BSON serialization of the given JSON-object @a j. @param[in] j JSON value to serialize @pre j.type() == value_t::object */

            @pre       j.type() == value_t::object
            */
            static std::size_t calc_bson_object_size(const typename BasicJsonType::object_t& value)
            {
                std::size_t document_size = std::accumulate(value.begin(), value.end(), std::size_t(0),
                    [](size_t result, const typename BasicJsonType::object_t::value_type& el)
                    {
                        return result += calc_bson_element_size(el.first, el.second);
                    });

                return sizeof(std::int32_t) + document_size + 1ul;
            }

            /*!
            @param[in] j  JSON value to serialize