struct constructor_stack
{
  struct constructor_stack *next;
  tree type;
  tree fields;
  tree index;
  tree max_index;
  tree unfilled_index;
  tree unfilled_fields;
  tree bit_index;
  vec<constructor_elt, va_gc> *elements;
  struct init_node *pending_elts;
  int offset;
  int depth;
  /* If value nonzero, this value should replace the entire
     constructor at this level.  */
  struct c_expr replacement_value;
  struct constructor_range_stack *range_stack;
  char constant;
  char simple;
  char nonconst;
  char implicit;
  char erroneous;
  char outer;
  char incremental;
  char designated;
  int designator_depth;
};