A zero-sized class without any storage. Used, for example, in HashSet. More...
Public Member Functions | |
nil () | |
Construct null. More... | |
nil (Istream &) | |
Construct from Istream. More... | |
Friends | |
Istream & | operator>> (Istream &is, nil &) |
Ostream & | operator<< (Ostream &os, const nil &) |
A zero-sized class without any storage. Used, for example, in HashSet.