| 305 | |
| 306 | template <typename T> |
| 307 | inline std::string write_tuple(const std::vector<T>& v) { |
| 308 | if (v.size() == 0) |
| 309 | return ""; |
| 310 | |
| 311 | std::ostringstream ss; |
| 312 | |
| 313 | if (v.size() == 1) { |
| 314 | ss << "(" << v.front() << ",)"; |
| 315 | } else { |
| 316 | const std::string delimiter = ", "; |
| 317 | // v.size() > 1 |
| 318 | ss << "("; |
| 319 | std::copy( |
| 320 | v.begin(), v.end() - 1, |
| 321 | std::ostream_iterator<T>(ss, delimiter.c_str())); |
| 322 | ss << v.back(); |
| 323 | ss << ")"; |
| 324 | } |
| 325 | |
| 326 | return ss.str(); |
| 327 | } |
| 328 | |
| 329 | inline std::string write_boolean(bool b) { |
| 330 | if (b) |