iter_func 411 ext/intl/grapheme/grapheme_string.c int32_t (*iter_func)(UBreakIterator *); iter_func 470 ext/intl/grapheme/grapheme_string.c iter_func = ubrk_previous; iter_func 475 ext/intl/grapheme/grapheme_string.c iter_func = ubrk_next; iter_func 482 ext/intl/grapheme/grapheme_string.c sub_str_start_pos = iter_func(bi); iter_func 546 ext/intl/grapheme/grapheme_string.c iter_func = ubrk_previous; iter_func 551 ext/intl/grapheme/grapheme_string.c iter_func = ubrk_next; iter_func 558 ext/intl/grapheme/grapheme_string.c sub_str_end_pos = iter_func(bi);