class person {\fbox{person}
public: person() { books = new set(); } void allocate( book* b ) { books->insert(b); } void deallocate( book* b ) { books->remove(b); } set * books; };
class person {\fbox{person}
public: person() { books = new set(); } void allocate( book* b ) { books->insert(b); } void deallocate( book* b ) { books->remove(b); } set * books; };