| 244 | } |
| 245 | |
| 246 | void filter(queue_back<std::string> in, queue_front<std::string> out) |
| 247 | { |
| 248 | std::string line; |
| 249 | while (in.pop(line)) |
| 250 | if (line.length() > 5) |
| 251 | out.push(line); |
| 252 | } |
| 253 | |
| 254 | void upper(queue_back<std::string> in, queue_front<std::string> out) |
| 255 | { |