31 struct C1  struct
36     explicit C1(int id) : B(id-2), id_(id) {count++;}  in C1()  argument
37     C1(const C1& a) : B(a.id_-2), id_(a.id_) {count++;}  in C1()  function
38     ~C1() {count--;}  in ~C1()  argument
41 int C1::count = 0;
56     : C1, C2
60     explicit A(int id) : C1(id-1), C2(id-2), B(id+3), id_(id) {count++;}  in A()
61     A(const A& a) : C1(a.id_-1), C2(a.id_-2), B(a.id_+3), id_(a.id_) {count++;}  in A()
85         assert(static_cast<const C1*>(a)->id_ == 4);  in f2()
90     catch (const C1*)  in f2()
116     catch (const C1* c1)  in f3()
142     catch (const C1*)  in f4()
155     catch (const C1* c1)  // can catch C1  in f5()