compare_general.hpp

/*
 * compare_general.hpp
 *
 *  Created on: Nov 1, 2015
 *      Author: i-bird
 */

#ifndef OPENFPM_DATA_SRC_UTIL_COMPARE_GENERAL_HPP_
#define OPENFPM_DATA_SRC_UTIL_COMPARE_GENERAL_HPP_


#include "util/common.hpp"
#include "util/util_debug.hpp"
#include "util/for_each_ref.hpp"
#include <boost/mpl/range_c.hpp>

template<typename T, unsigned int agg=2 * is_aggregate<T>::value>
struct compare_general
{
    static inline bool compare_general_f(const T & src, const T & dst)
    {
#ifndef DISABLE_ALL_RTTI
        std::cerr << "Error: " << __FILE__ << ":" << __LINE__ << "  " << demangle(typeid(T).name()) << " does not have an operator== and is not an aggregate or an openfpm native structure, comparation is not possible" << "\n";
#endif
        return false;
    }
};


template<typename T>
struct compare_general<T,2>
{
    static inline bool compare_general_f(const T & src, const T & dst)
    {
        compare_aggregate<T> cp(src,dst);

        boost::mpl::for_each_ref<boost::mpl::range_c<int,0,T::max_prop>>(cp);

        return cp.result();
    }
};

template<typename T>
struct compare_general<T,0>
{
    static inline bool compare_general_f(const T & src, const T & dst)
    {
        return dst == src;
    }
};


#endif /* OPENFPM_DATA_SRC_UTIL_COMPARE_GENERAL_HPP_ */