Merge "Grab pointer into array post-resize()"

        }

        // Encode the UTF-8 representation of the codepoint into the string

        char* start = &output[output.size()];

        output.resize(output.size() + utf8_length);

        const size_t start_index = output.size();

        output.resize(start_index + utf8_length);

        char* start = &output[start_index];

        utf32_to_utf8((char32_t*)&codepoint, 1, start, utf8_length + 1);

        index = next_index;