gcc/testsuite/g++.dg/conversion/op2.C

// PR c++/13907

struct A {
  operator int & ();
  operator const int & () const;
};
                                                                               
          
void f(int &);
void f(const int &);
                                                                               
          
int main() {
  const A x = A();
  f(x);
}