Function readFile

src/attributes.cpp:851–857

        template <typename Stream>
        void readFile(const std::string& file, Stream& os) {
            std::ifstream ifs(file.c_str());
            if (ifs.fail())
                throw Rcpp::file_io_error(file);		// #nocov
            os << ifs.rdbuf();
            ifs.close();
        }

        template <typename Collection>
        void readLines(std::istream& is, Collection* pLines) {