20001130-1.c

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

static inline int bar(void) { return 1; }
static int mem[3];

static int foo(int x)
{
  if (x != 0)
    return x;

  mem[x++] = foo(bar());

  if (x != 1)
    abort();

  return 0;
}

int main()
{
  foo(0);
  return 0;
}