else
{
/* on first call, iter->input is the input string. Thereafter: 0. */
- iter->last = icu_iter_invoke(iter, iter->steps ?
- iter->steps : iter->chain->csteps,
- iter->input);
+ assert(iter->steps || !iter->chain->csteps);
+ iter->last = icu_iter_invoke(iter, iter->steps, iter->input);
iter->input = 0;
if (!iter->last)