Method calc_bson_entry_header_size

Source/Utils/json.hpp:13628–13638

! @return The size of a BSON document entry header, including the id marker and the entry name size (and its null-terminator). */

                    and the entry name size (and its null-terminator).
            */
            static std::size_t calc_bson_entry_header_size(const string_t& name)
            {
                const auto it = name.find(static_cast<typename string_t::value_type>(0));
                if (JSON_HEDLEY_UNLIKELY(it != BasicJsonType::string_t::npos))
                {
                    JSON_THROW(out_of_range::create(409,
                        "BSON key cannot contain code point U+0000 (at byte " + std::to_string(it) + ")"));
                }

                return /*id*/ 1ul + name.size() + /*zero-terminator*/1u;
            }

            /*!
            @brief Writes the given @a element_type and @a name to the output adapter