collect_terms.hh

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#pragma once
 
#include "Algorithm.hh"
 
namespace cadabra {
 
 
    class collect_terms : public Algorithm {
        public:
            collect_terms(const Kernel&, Ex&);
 
            virtual bool     can_apply(iterator);
            virtual result_t apply(iterator&);
 
            void  fill_hash_map(iterator);
        private:
            result_t collect_from_hash_map();
            void remove_zeroed_terms(sibling_iterator, sibling_iterator);
 
            typedef std::multimap<hashval_t, sibling_iterator> term_hash_t;
            typedef term_hash_t::iterator                      term_hash_iterator_t;
 
            term_hash_t term_hash;
        };
 
    }