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Question #14 Difficulty: 2

According to the C++23 standard, what is the output of this program? 

    #include <iostream>

class A {
public:
  A() { std::cout << "a"; }
  ~A() { std::cout << "A"; }
};

class B {
public:
  B() { std::cout << "b"; }
  ~B() { std::cout << "B"; }
};

class C {
public:
  C() { std::cout << "c"; }
  ~C() { std::cout << "C"; }
};

A a;

void foo() { static C c; }
int main() {
  B b;
  foo();
}

Hint:

When are non-local static variables, local static variables and local automatic variables initialized and destroyed? Does it matter if we put static in front of A a?

Answer:

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