BitSet word iterator [C++ API].
Low-level iterator that sees a BitSet as an array of bit words. It only iterates non-zero words and returns zero at the end of iteration.
A simple way of printing all non-zero words of a BitWord:
Creates a default constructed iterator, not initialized to iterate any BitSet.
Creates an iterator, that will iterate the given bit_set.
The bit_set cannot change or be destroyed during iteration.
Creates a copy of other iterator.
Resets the iterator (puts it into a default constructed state).
Reinitializes the iterator to iterate the given bit_set, from the beginning.
Returns the next (or the first, if called the first time) non-zero word of the BitSet or zero if the iteration ended.
Use word_index() to get the index (in word units) of the word returned.
Returns the current bit index of a word returned by next_word().
Returns the current word index of a word returned by next_word().
