IndexIterator.hh

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#pragma once

#include "Storage.hh"
#include "Props.hh"

namespace cadabra {


class index_iterator : public Ex::iterator_base {
    public:
        index_iterator(const Properties&);
        index_iterator(const index_iterator&);
        
        static index_iterator create(const Properties&, const iterator_base&);
        
        static index_iterator begin(const Properties&, const iterator_base&, int offset=0);
        static index_iterator end(const Properties&, const iterator_base&);
        
        index_iterator& operator=(const index_iterator&);
        bool    operator==(const index_iterator&) const;
        bool    operator!=(const index_iterator&) const;
        index_iterator&  operator++();
        index_iterator   operator++(int);
        index_iterator&  operator+=(unsigned int);
        
        Ex::iterator halt, walk, roof;
    private:
        const Properties *properties;
        
        bool is_index(Ex::iterator) const;
};

//size_t number_of_indices(const Properties&, Ex::iterator);

}