C++ | Exception Handling | Question 9
#include <iostream>using namespace std; class Test { static int count; int id;public: Test() { count++; id = count; cout << "Constructing object number " << id << endl; if(id == 4) throw 4; } ~Test() { cout << "Destructing object number " << id << endl; }}; int Test::count = 0; int main() { try { Test array[5]; } catch(int i) { cout << "Caught " << i << endl; }} |
(A)
Constructing object number 1 Constructing object number 2 Constructing object number 3 Constructing object number 4 Destructing object number 1 Destructing object number 2 Destructing object number 3 Destructing object number 4 Caught 4
(B)
Constructing object number 1 Constructing object number 2 Constructing object number 3 Constructing object number 4 Destructing object number 3 Destructing object number 2 Destructing object number 1 Caught 4
(C)
Constructing object number 1 Constructing object number 2 Constructing object number 3 Constructing object number 4 Destructing object number 4 Destructing object number 3 Destructing object number 2 Destructing object number 1 Caught 4
(D)
Constructing object number 1 Constructing object number 2 Constructing object number 3 Constructing object number 4 Destructing object number 1 Destructing object number 2 Destructing object number 3 Caught 4
Answer: (B)
Explanation: The destructors are called in reverse order of constructors. Also, after the try block, the destructors are called only for completely constructed objects.
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