31     static int count;  member
33     explicit B(int id) : id_(id) {count++;}  in B()
34     B(const B& a) : id_(a.id_) {count++;}  in B()
35     ~B() {count--;}  in ~B()
38 int B::count = 0;  member in B
43     static int count;  member
45     explicit C1(int id) : B(id-2), id_(id) {count++;}  in C1()
46     C1(const C1& a) : B(a.id_-2), id_(a.id_) {count++;}  in C1()
47     ~C1() {count--;}  in ~C1()
50 int C1::count = 0;  member in C1
55     static int count;  member
57     explicit C2(int id) : B(id-2), id_(id) {count++;}  in C2()
58     C2(const C2& a) : B(a.id_-2), id_(a.id_) {count++;}  in C2()
59     ~C2() {count--;}  in ~C2()
62 int C2::count = 0;  member in C2
67     static int count;  member
69     explicit A(int id) : C1(id-1), C2(id-2), id_(id) {count++;}  in A()
70     A(const A& a) : C1(a.id_-1), C2(a.id_-2), id_(a.id_) {count++;}  in A()
71     ~A() {count--;}  in ~A()
74 int A::count = 0;  member in A
78     assert(A::count == 0);  in f1()
79     assert(C1::count == 0);  in f1()
80     assert(C2::count == 0);  in f1()
81     assert(B::count == 0);  in f1()
83     assert(A::count == 1);  in f1()
84     assert(C1::count == 1);  in f1()
85     assert(C2::count == 1);  in f1()
86     assert(B::count == 2);  in f1()
101         assert(A::count == 0);  in f2()
102         assert(C1::count == 0);  in f2()
103         assert(C2::count == 0);  in f2()
104         assert(B::count == 0);  in f2()
135         assert(A::count == 0);  in f3()
136         assert(C1::count == 0);  in f3()
137         assert(C2::count == 0);  in f3()
138         assert(B::count == 0);  in f3()
162         assert(A::count == 0);  in f4()
163         assert(C1::count == 0);  in f4()
164         assert(C2::count == 0);  in f4()
165         assert(B::count == 0);  in f4()
195     assert(A::count == 0);  in main()
196     assert(C1::count == 0);  in main()
197     assert(C2::count == 0);  in main()
198     assert(B::count == 0);  in main()