std::basic_stringstream(3cxx) on Linux
The text 3cb416af173b, as Debian 6.0 (Squeeze) shipped it.
Controlling input and output for std::string. This class supports reading from and writing to objects of type std::basic_string, using the inherited functions from std::basic_iostream. To control the associated sequence, an instance of std::basic_stringbuf is used, which this page refers to as sb.