diffblue-cbmc/regression/cpp-from-CVS/Reference1/main.cpp

int g;

void function(int &ref)
{
  ref=2;
}

int main()
{
  int &r=g;

  r=1;

  assert(g==1);

  function(r);

  assert(g==2);

  // ?: does produce an l-value, apparently
  int &s=g?r:g;
}