- int i;
-
- /* Copy everything except the level stack and beyond. */
- memcpy (to, from, offsetof (struct bidi_it, level_stack[0]));
-
- /* Copy the active part of the level stack. */
- to->level_stack[0] = from->level_stack[0]; /* level zero is always in use */
- for (i = 1; i <= from->stack_idx; i++)
- to->level_stack[i] = from->level_stack[i];
+ /* Copy everything from the start through the active part of
+ the level stack. */
+ memcpy (to, from,
+ (offsetof (struct bidi_it, level_stack[1])
+ + from->stack_idx * sizeof from->level_stack[0]));