util_num.hpp

/*
 * util_num.hpp
 *
 *  Created on: Oct 23, 2015
 *      Author: i-bird
 */

#ifndef OPENFPM_NUMERICS_SRC_UTIL_UTIL_NUM_HPP_
#define OPENFPM_NUMERICS_SRC_UTIL_UTIL_NUM_HPP_

#include "util/common.hpp"
#include "grid_dist_testing.hpp"
#include "Grid/grid_dist_id.hpp"

template<typename T, typename Sfinae = void>
struct is_const_field: std::false_type {};

template<typename T>
struct is_const_field<T, typename Void<typename T::const_field>::type> : std::true_type
{};


template<typename T, typename Sfinae = void>
struct has_val_pos: std::false_type {};


template<typename T>
struct has_val_pos<T, typename Void<typename T::with_position >::type> : std::true_type
{};



template<typename T, typename Sfinae = void>
struct is_testing: std::false_type {};


template<typename T>
struct is_testing<T, typename Void<typename T::testing >::type> : std::true_type
{};


template<typename T, unsigned int dims, typename stype, typename decomposition, bool stub=is_testing<T>::value>
struct stub_or_real
{
    typedef grid_dist_testing<dims> type;
};

template<typename T, unsigned int dims, typename stype, typename decomposition>
struct stub_or_real<T,dims,stype,decomposition,false>
{
    typedef grid_dist_id<dims,stype,aggregate<size_t>,decomposition> type;
};

#endif /* OPENFPM_NUMERICS_SRC_UTIL_UTIL_NUM_HPP_ */