Question: 1 . void iter _ next ( iter _ t * iter ) { 2 . if ( iter ) { 3 . if (

1. void iter_next(iter_t* iter){2. if (iter){3. if (iter->curr){4. iter->curr = iter->curr->next; 5.}6.}7.}
8. void* iter_get(iter_t* iter){9. if (iter){
10. lock(&iter->mutex); 11. if (iter->curr){
12. unlock(&iter->mutex);
13. return iter->curr->obj; 14.}
15. unlock(&iter->mutex); 16.}17. return NULL; 18.}

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