please help analysing the following C++ library:
```cpp
#pragma once
#include"meta_object_traits.hpp"
#include"offset_pointer.hpp"
#include <array>


using namespace offset_pointer;
using namespace meta_typelist;
using namespace list_common_object;

//crash when try to double delete the allocate memory
#define not_null (unsigned char*)(0x66)


//friend function to copy from a custom class
template<class structT, class AMF>
inline void copy_struct(AMF& amf, structT&& s);

template<class T> concept is_functor = requires{
    &T::operator();
};

//we don't save the function itself but just a type to generate the destructor
//so it must be a functor but not a function pointer
template<class T> constexpr bool is_functor_v = is_functor<T> && !std::is_function_v<T>;

template<std::size_t ...I> constexpr std::array<std::size_t, sizeof...(I)> meta_array_to_array(meta_array<I...>) {
    return { I... };
}


template<class type_check_looper> class align_memory_dynamic_location {
private:
    unsigned char* base_ptr;
    const std::size_t index;
    const std::size_t offset;

public:
    align_memory_dynamic_location(unsigned char* ptr, std::size_t idx, std::size_t off) noexcept
        :
        base_ptr(ptr),
        index(idx),
        offset(off)
    {}
    unsigned char* get()const {
        return base_ptr + offset;
    }
    template<class T> void operator =(T const& value) {
        std::size_t recursion_count{ 0 };
        type_check_looper{}.for_each([&recursion_count, this]<class types_mso>(T const& value) {
            if (recursion_count == this->index) {
                if constexpr (std::is_convertible_v<T, stream_final_t<types_mso>>) {
                    read_from_align_offset<unsigned char, stream_final_t<types_mso>>(this->base_ptr, this->offset) = value;
                }
                else {
                    throw std::invalid_argument("Type mismatch: Cannot assign value to this location.");
                }
            }
            ++recursion_count;
        }, value);
    }
};

//RAII for new
template<std::size_t pack_size, class Self_destruct_determin_t, class ...Args> 
class align_memory_field
{
private:
    //judge if the first type in given list is a functor
    static constexpr bool Is_self_destructible = is_functor_v<Self_destruct_determin_t>;
    static constexpr std::size_t Max_types_index = Is_self_destructible ?
        sizeof...(Args) - 1 :
        sizeof...(Args);

    //if first type is a functor, the first type should be ignore in offset calculation
    using Member_offset_vector = exp_if<Is_self_destructible,
        offset_vector<pack_size, Args...>, //true
        offset_vector<pack_size, Self_destruct_determin_t, Args...>//false
    >;

    static constexpr std::size_t End_of_field_offset = align_offset_advance_t<
        typename Member_offset_vector :: template iterator<Max_types_index>::get,
        typename Member_offset_vector :: template value_type<Max_types_index>
    >::template seek<pack_size>::offset_v;
        
        

    unsigned char* base_ptr{ nullptr };
    
public:
    
    //allocate constructor
    align_memory_field(std::size_t N = End_of_field_offset)
        :
        base_ptr(new unsigned char[N])
    {}

    //static memory constructor
    template<class Obj_t, class En = std::enable_if_t<Is_self_destructible>>
    align_memory_field(Obj_t* p_memory_locate)
        :
        base_ptr(reinterpret_cast<unsigned char*>(p_memory_locate))
    {}

    align_memory_field(const align_memory_field& another)
        :
        align_memory_field()
    {
        std::copy(another.base_ptr, another.base_ptr + End_of_field_offset, base_ptr);
    }

    align_memory_field(align_memory_field&& another) noexcept
    {
        if constexpr (!Is_self_destructible) {
            base_ptr = another.base_ptr;
            //set to nullptr to prevent the dying object from releasing the memory
            another.base_ptr = nullptr;
        }
        else
        {
            std::copy(another.base_ptr, another.base_ptr + End_of_field_offset, base_ptr);
        }
    }
 
#ifdef ENABLE_DYNAMIC_LOCATION
    //there are other ways to do this, consider it twice, heavy impact on performance 
    auto operator[](unsigned int idx)const {
        if (idx > Max_types_index) throw std::out_of_range("error: index overflow!");

        using offset_array_set = meta_to_array<meta_iota<Max_types_index>>;
        using meta_array_set = decltype(Member_offset_vector::offset_array(offset_array_set{}));

        constexpr auto offset_arr = meta_array_to_array(meta_array_set{});

        return align_memory_dynamic_location<while_constexpr<
            meta_stream_o<Max_types_index + 1, meta_replace_o, 
                meta_istream<
                    exp_if<Is_self_destructible, exp_list<Args...>, exp_list<Self_destruct_determin_t, Args...>>
                    >
                >
            >
        >{base_ptr, idx, offset_arr[idx]};
    }
#endif
    template<typename structT> structT* cast() const
    {
        static_assert(alignof(structT) == pack_size);
        using align_memory_type_list = exp_if<Is_self_destructible, 
            exp_list<Args...>, exp_list<Self_destruct_determin_t, Args...>>;
        using construct_test = typename add_to_front<structT, align_memory_type_list>::type
            ::template to<std::is_constructible>;
        static_assert(construct_test::value, 
            "Error: static type check failed! target structure has a different initialize list.");
    
        return reinterpret_cast<structT*>(base_ptr);
    }

    constexpr std::size_t member_count() const {
        return Max_types_index + 1;
    }

    //copy a struct to the field
    template<class structT, class ...TArgs>
    friend inline void copy_struct(align_memory_field<alignof(structT), TArgs...>& amf, structT&& s);

    //use placement new to construct a certain type if needed
    template<std::size_t I, class Source_t = Member_offset_vector::template value_type<I>> requires std::is_convertible_v<
        Source_t, 
        typename Member_offset_vector::template value_type<I>
    > 
    constexpr void initialize(Source_t const& value = Source_t())
    {
        unsigned char* place_ptr = base_ptr + Member_offset_vector::template offset_v<I>;

        new(place_ptr) typename Member_offset_vector::template value_type<I>{value};
    }

    //write const data
    template<std::size_t I, class Source_t> 
        requires std::is_convertible_v<Source_t, typename Member_offset_vector::template value_type<I>>
    constexpr void write(Source_t const& value)
    {
        read_from_align_offset<unsigned char, typename Member_offset_vector::template value_type<I>>(
           base_ptr, Member_offset_vector::template offset_v<I>) = value;
    }

    //write ref, this is much faster if you already have the reference
    template<std::size_t I> requires (!std::is_fundamental_v<typename Member_offset_vector::template value_type<I>>)
    constexpr void write(typename Member_offset_vector::template value_type<I>& value)
    {
        unsigned char* place_ptr = base_ptr + Member_offset_vector::template offset_v<I>;

        std::copy(
            reinterpret_cast<unsigned char*>(&value), 
            reinterpret_cast<unsigned char*>(&value) + 
            sizeof(typename Member_offset_vector::template value_type<I>), 
            place_ptr
        );
    }

    template<std::size_t I> requires (I <= Max_types_index)
    constexpr typename Member_offset_vector::template value_type<I>& read() const
    {
       
        return read_from_align_offset<
            unsigned char, 
            typename Member_offset_vector::template value_type<I>>(
                    base_ptr, Member_offset_vector::template offset_v<I>
            );
    }
    ~align_memory_field()
    {
        if constexpr (!Is_self_destructible) {
            if (base_ptr) {
                delete[] base_ptr;
            }
            base_ptr = not_null;
        }
        else {
            Self_destruct_determin_t{}(base_ptr);
        }
        
    }
};

//tool for alignment calculate
struct make_align
{
    template<class this_align, class T> using apply = std::conditional_t<
        (alignof(T) > this_align::value), Idx<alignof(T)>, this_align>;
};

using align_calc_ostream = meta_object<Idx<0>, make_align>;

template<class TL> using decl_align_t = meta_all_transfer<
    align_calc_ostream,
    meta_istream<TL>
>::to::type;

template<class...Args>
constexpr std::size_t decl_align = decl_align_t<exp_list<Args...>>::value;

template<std::size_t alignment_size, class TL> struct alignment_calc
{};

template<std::size_t alignment_size, template<class ...> class TL, class first, class ...Args>
struct alignment_calc<alignment_size, TL<first, Args...>>
{
    static constexpr std::size_t value = alignment_calc<(alignment_size > sizeof(first) ? alignment_size: sizeof(first)), TL<Args...>>::value;
};
template<std::size_t alignment_size, template<class ...> class TL>
struct alignment_calc<alignment_size, TL<>>
{
    static constexpr std::size_t value = alignment_size;
};


template<class structT, class ...Args>
inline void copy_struct(align_memory_field<alignof(structT), Args...>& amf, structT&& s)
{
    new(amf.base_ptr) std::remove_cvref_t<structT>{ s };
}

using do_nothing_t = decltype([](unsigned char* p) {});

template<class ...Typs> using static_align_memory_field = align_memory_field<decl_align<Typs...>, do_nothing_t, Typs...>;


template<class ...typs>
using align_attach_istream = meta_istream<collector::collect<
    meta_all_transfer_o<
    meta_attach_o<offset_vector<decl_align<typs...>, typs...>>,
    meta_istream<meta_iota<sizeof...(typs) - 1>>
    >
    >>;


```
example:
```cpp
#include<print>
#define ENABLE_DYNAMIC_LOCATION
#include"align_memory_field.hpp"

struct X { int a; int b; std::string s; };

int main() {
    
    X x{};
    //using align_memory_field as a structure explorer
    //provide index access to members
    static_align_memory_field<int, int, std::string> S_amf{ &x };
    S_amf[0] = 10;
    S_amf[1] = 20;
    S_amf[2] = (std::string)"hello world";

    std::println("a = {}, b = {}, s = {}", x.a, x.b, x.s);

    //or directly copy data from a structure
    align_memory_field<8, int, int, std::string> amf{};
    copy_struct(amf, x);
    std::println("[0] = {}, [1] = {}, [2] = {}", amf.read<0>(), amf.read<1>(), amf.read<2>());
}
```