| 252 | } |
| 253 | |
| 254 | void filter(queue_back<std::string> in, queue_front<std::string> out) |
| 255 | { |
| 256 | std::string line; |
| 257 | while (in.pop(line)) |
| 258 | if (line.length() > 5) |
| 259 | out.push(line); |
| 260 | } |
| 261 | |
| 262 | void upper(queue_back<std::string> in, queue_front<std::string> out) |
| 263 | { |