template<typename U>
struct Target__
{
protected:

    U   *entries_ = nullptr;
    int size_;
public:

Target__<U> operator=(Target__<U> &other) {
        size_ = other.size_;
        if (size_ > 0) {
            entries_ = std::copy(other.entries_, other.entries_ + size_, new U[size_]);
            return *this;
        } else {
            throw (std::out_of_range("Size of Target cannot be Zero"));
        }
    }

};