Program Listing for File preprocessor-helpers.h

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#pragma once
#include <type_traits>

#define ARRAY_SIZE(arr) std::extent<decltype(arr)>::value

template<uint32_t START, uint32_t END, template<uint32_t> class EXECUTOR>
class PREPROCESSOR_FOR
{
private:
    void PREPROCESSOR_FOR_HELPER(void *, std::integral_constant<uint32_t, END>)
    {
    }

    template<int INDEX>
    void PREPROCESSOR_FOR_HELPER(void *param, std::integral_constant<uint32_t, INDEX> = std::integral_constant<uint32_t, 0>())
    {
        EXECUTOR<INDEX>::OnEach(param);
        PREPROCESSOR_FOR_HELPER(param, std::integral_constant<uint32_t, INDEX + 1>());
    }

public:
    PREPROCESSOR_FOR(void *param = nullptr)
    {
        PREPROCESSOR_FOR_HELPER<START>(param);
    }
};