Grouping.hh

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#pragma once
 
#include "Storage.hh"
#include <functional>
 
namespace cadabra {
 
 
    typedef std::map<Ex::iterator, std::pair<multiplier_t, Ex::sibling_iterator>, Ex::iterator_base_less> equiv_map_t;
    typedef std::function<bool(const Ex&, Ex::iterator, Ex::iterator)> equiv_fun_t;
    
    equiv_map_t group_by_equivalence(const Ex&, Ex::sibling_iterator first, Ex::sibling_iterator last);
    equiv_map_t group_by_equivalence(const Ex&, Ex::iterator comma_top);
 
    equiv_map_t group_by_equivalence(const Ex&, Ex::sibling_iterator first, Ex::sibling_iterator last, equiv_fun_t&);
    equiv_map_t group_by_equivalence(const Ex&, Ex::iterator comma_top, equiv_fun_t&);
 
}