- empty
bool empty()
Undocumented in source. Be warned that the author may not have intended to support it.
- front
char front()
Undocumented in source. Be warned that the author may not have intended to support it.
- popFront
void popFront()
Undocumented in source. Be warned that the author may not have intended to support it.
(?) Iterator yielding mismatched base in query; or '=' if equal to reference