Function search_duplicated_node

compat/regex/regcomp.c:1589–1601

      org_node = org_dest;
      clone_node = clone_dest;
    }
  return REG_NOERROR;
}

/* Search for a node which is duplicated from the node ORG_NODE, and
   satisfies the constraint CONSTRAINT.  */

static int
search_duplicated_node (const re_dfa_t *dfa, int org_node,
			unsigned int constraint)
{
  int idx;
  for (idx = dfa->nodes_len - 1; dfa->nodes[idx].duplicated && idx > 0; --idx)
    {
      if (org_node == dfa->org_indices[idx]
	  && constraint == dfa->nodes[idx].constraint)