collect_factors.hh

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#pragma once

#include "Algorithm.hh"

namespace cadabra {


class collect_factors : public Algorithm {
    public:
        collect_factors(const Kernel&, Ex&);
        
        virtual bool     can_apply(iterator);
        virtual result_t apply(iterator&);
    private:
        void fill_hash_map(iterator);

        typedef std::multimap<hashval_t, sibling_iterator> factor_hash_t;
        typedef factor_hash_t::iterator                    factor_hash_iterator_t;

        factor_hash_t factor_hash;
};

}