c,cc/copy_struct.cc


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#include <iostream>
#include <vector>

using namespace std;

struct C {
  vector<int> i;
};

struct B {
  C c;
};

struct A {
  B b;
};

int
main(void)
{
  A a;
  B b;
  C c;
 
  c.i.push_back(23);
  b.c = c;
  a.b = b;

  cout << a.b.c.i[0] << endl;

  A x(a);
  cout << x.b.c.i[0] << endl;

  return 0;
}