Method iterator

API/fleece/Fleece.hh:215–215

        public:
            inline iterator(Dict);
            inline iterator(const FLDictIterator &i)   :FLDictIterator(i) { }
            inline uint32_t count() const               {return FLDictIterator_GetCount(this);}
            inline Value key() const;
            inline slice keyString() const;