36     static int count;  member
38     explicit B(int id) : id_(id) {count++;}  in B()
39     B(const B& a) : id_(a.id_) {count++;}  in B()
40     ~B() {count--;}  in ~B()
43 int B::count = 0;  member in B
48     static int count;  member
50     explicit C1(int id) : B(id-2), id_(id) {count++;}  in C1()
51     C1(const C1& a) : B(a.id_-2), id_(a.id_) {count++;}  in C1()
52     ~C1() {count--;}  in ~C1()
55 int C1::count = 0;  member in C1
60     static int count;  member
62     explicit C2(int id) : B(id-2), id_(id) {count++;}  in C2()
63     C2(const C2& a) : B(a.id_-2), id_(a.id_) {count++;}  in C2()
64     ~C2() {count--;}  in ~C2()
67 int C2::count = 0;  member in C2
72     static int count;  member
74     explicit A(int id) : C1(id-1), C2(id-2), id_(id) {count++;}  in A()
75     A(const A& a) : C1(a.id_-1), C2(a.id_-2), id_(a.id_) {count++;}  in A()
76     ~A() {count--;}  in ~A()
79 int A::count = 0;  member in A
83     assert(A::count == 0);  in f1()
84     assert(C1::count == 0);  in f1()
85     assert(C2::count == 0);  in f1()
86     assert(B::count == 0);  in f1()
88     assert(A::count == 1);  in f1()
89     assert(C1::count == 1);  in f1()
90     assert(C2::count == 1);  in f1()
91     assert(B::count == 2);  in f1()
106         assert(A::count == 0);  in f2()
107         assert(C1::count == 0);  in f2()
108         assert(C2::count == 0);  in f2()
109         assert(B::count == 0);  in f2()
140         assert(A::count == 0);  in f3()
141         assert(C1::count == 0);  in f3()
142         assert(C2::count == 0);  in f3()
143         assert(B::count == 0);  in f3()
167         assert(A::count == 0);  in f4()
168         assert(C1::count == 0);  in f4()
169         assert(C2::count == 0);  in f4()
170         assert(B::count == 0);  in f4()
200     assert(A::count == 0);  in main()
201     assert(C1::count == 0);  in main()
202     assert(C2::count == 0);  in main()
203     assert(B::count == 0);  in main()