array6.c

this is a gcc file, you can download it and learn its usetility, for further detail please look at t

// Special g++ Options: -O1

int count = 0;

double foo () {
  count++;
  return 0;
};

double bar () {
  const double x[1] = { foo() };
  return x[0];
};

int main () 
{
  bar();
  if (count != 1)
    return 1;
};