#include <array>

#include <cstdint>

#include <iostream>

class MyClass

{

private:

    uint32_t m_Member;

public:

    constexpr MyClass(uint32_t parameter)

        : m_Member{parameter}

    {

    }

    constexpr uint32_t GetValue() const

    {

        return m_Member;

    }

};

int main()

{

    constexpr uint32_t ARRAY_SIZE{ MyClass{  }.GetValue() };

    std::array<uint32_t, ARRAY_SIZE> myArray{ , , , ,  };

    for (auto&& number : myArray)

    {

        std::cout << number << std::endl;

    }

    return ;

}

 #include <array>

 #include <cstdint>

 #include <iostream>

 int main()

 {

     constexpr uint32_t ARRAY_SIZE{  };

     std::array<uint32_t, ARRAY_SIZE> myArray{ , , , ,  };

     for (auto&& number : myArray)

     {

         std::cout << number << std::endl;

     }

     return ;

 }