Initializes an iterator for set and points it to the first value in set.
If set is empty, false is returned and value is set to G_MAXUINT.
a pointer to an uninitialized gtk.bitset_iter.BitsetIter
a gtk.bitset.Bitset
Set to the first value in set
true if set isn't empty.
Initializes an iterator for set and points it to the first value in set.
If set is empty, false is returned and value is set to G_MAXUINT.