[Solved] C++ Constructor Oder [closed]

You are creating an extra global instance c here:

class cls1
{
    int x; cls xx;
public:
        cls1(int i=0){cout<<" c2 ";x=i;}
        ~cls1(){cout<<" d2 ";}
} c; // <-- here

That one is created first.

Otherwise your expected order is spot-on.