Method fill_buffer

Source/Utils/json.hpp:5034–5037

            template<size_t T>
            void fill_buffer()
            {
                wide_string_input_helper<BaseInputAdapter, T>::fill_buffer(base_adapter, utf8_bytes, utf8_bytes_index, utf8_bytes_filled);
            }

            /// a buffer for UTF-8 bytes
            std::array<std::char_traits<char>::int_type, 4> utf8_bytes = { {0, 0, 0, 0} };