drop_weight.hh

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#pragma once
 
#include "Algorithm.hh"
#include "properties/WeightInherit.hh"
#include "properties/Weight.hh"
#include <string>
 
namespace cadabra {
 
    class drop_keep_weight : public Algorithm {
        public:
            drop_keep_weight(const Kernel&, Ex&, Ex&);
 
            virtual bool can_apply(iterator) override;
            result_t     do_apply(iterator&, bool keepthem);
 
        protected:
            Ex                   arg;
            const WeightInherit *gmn;
            const Weight        *wgh;
            std::string          label;
            multiplier_t         weight;
        };
 
    class drop_weight : public drop_keep_weight {
        public:
            drop_weight(const Kernel&, Ex&, Ex&);
 
            virtual result_t apply(iterator&) override;
        };
 
    class keep_weight : public drop_keep_weight {
        public:
            keep_weight(const Kernel&, Ex&, Ex&);
 
            virtual result_t apply(iterator&) override;
        };
 
    }