Member not zeroed, a clang++ bug?

Question

Consider the following code:

class A {
public:
    int i;
    A() {}
};

class B {
public:
    A a;
    int i;
};

int main() {
    B* p = new B {};
    std:         


        

Answer 1

Integral types are not required to be initialized to a value like that in a non-default constructor (since you have provided a constructor)

Change your constructor to A() : i(0) {}.