Header <sstream> implementation status Reference Implementation : Cannot implement with language itself. Need compiler support. Used C++ N STL : Partially implemented with C++ N : Fully implemented with C++ N : Not yet implemented Features Standard Implemented in Classes basic_stringbuf basic_istringstream basic_ostringstream basic_stringstream Functions ss::swap(ss::basic_stringbuf) ss::swap(ss::basic_istringstream) ss::swap(ss::basic_ostringstream) ss::swap(ss::basic_stringstream)