gistfile1.txt

#include <iostream>
using namespace std;

class a {
public:
    struct dummy { int i; double j; };
    typedef int dummy::* _bool;
};

typedef int bar;

int main() {
    a::dummy foo;
    foo.i = 4;

    a::_bool baz = &a::dummy::i;

    cout << foo.*baz << endl;
}