22     static int count;  member
24     explicit B(int id) : id_(id) {count++;}  in B()
25     B(const B& a) : id_(a.id_) {count++;}  in B()
26     ~B() {count--;}  in ~B()
29 int B::count = 0;  member in B
34     static int count;  member
36     explicit C1(int id) : B(id-2), id_(id) {count++;}  in C1()
37     C1(const C1& a) : B(a.id_-2), id_(a.id_) {count++;}  in C1()
38     ~C1() {count--;}  in ~C1()
41 int C1::count = 0;  member in C1
46     static int count;  member
48     explicit C2(int id) : B(id-2), id_(id) {count++;}  in C2()
49     C2(const C2& a) : B(a.id_-2), id_(a.id_) {count++;}  in C2()
50     ~C2() {count--;}  in ~C2()
53 int C2::count = 0;  member in C2
58     static int count;  member
60     explicit A(int id) : C1(id-1), C2(id-2), id_(id) {count++;}  in A()
61     A(const A& a) : C1(a.id_-1), C2(a.id_-2), id_(a.id_) {count++;}  in A()
62     ~A() {count--;}  in ~A()
65 int A::count = 0;  member in A
69     assert(A::count == 0);  in f1()
70     assert(C1::count == 0);  in f1()
71     assert(C2::count == 0);  in f1()
72     assert(B::count == 0);  in f1()
74     assert(A::count == 1);  in f1()
75     assert(C1::count == 1);  in f1()
76     assert(C2::count == 1);  in f1()
77     assert(B::count == 2);  in f1()
92         assert(A::count == 0);  in f2()
93         assert(C1::count == 0);  in f2()
94         assert(C2::count == 0);  in f2()
95         assert(B::count == 0);  in f2()
126         assert(A::count == 0);  in f3()
127         assert(C1::count == 0);  in f3()
128         assert(C2::count == 0);  in f3()
129         assert(B::count == 0);  in f3()
153         assert(A::count == 0);  in f4()
154         assert(C1::count == 0);  in f4()
155         assert(C2::count == 0);  in f4()
156         assert(B::count == 0);  in f4()
186     assert(A::count == 0);  in main()
187     assert(C1::count == 0);  in main()
188     assert(C2::count == 0);  in main()
189     assert(B::count == 0);  in main()