Member object destructors are called for only those member objects that were constructed before an exception occurred. - C++ Class

C++ examples for Class:Destructor

Description

Member object destructors are called for only those member objects that were constructed before an exception occurred.

Demo Code

#include <iostream>
#include <stdexcept>

class C1 {//w  w w.  j a  v  a 2 s.c  o m
 public:
    C1() { std::cout << "C1 Constructor" << std::endl; }
    ~C1() { std::cout << "C1 Destructor" << std::endl; }
};

class C2 {
 public:
    C2() { std::cout << "C2 Constructor" << std::endl; }
    ~C2() { std::cout << "C2 Destructor" << std::endl; }
};

class C3 {
 public:
    C3() {
        std::cout << "C3 Constructor" << std::endl;
        C1 c1;

        throw std::exception();

        C2 c2;
    }
    ~C3() { std::cout << "C3 Destructor" << std::endl; }
};

int main(int argc, const char *argv[]) {
    try {
        C3 c3;
    } catch (std::exception &e) {
        std::cout << "exception: " << e.what() << std::endl;
    }

    return 0;
}

Result


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