class_unique_id.hpp

#pragma once
 
namespace bnb
{
    /**
     * @addtogroup Utils
     * @{
     */
 
    template<typename Class>
    size_t class_unique_id()
    {
        static const char registrar_slot = 0;
        return reinterpret_cast<size_t>(&registrar_slot);
    }
 
    template<typename IdType, typename T>
    class identified_class
    {
    public:
        static const char* get_name() noexcept
        {
            try {
                return typeid(T).name();
            } catch (const std::bad_typeid&) {
                return "unknown";
            }
        }
 
        static IdType get_id() noexcept
        {
            return static_cast<IdType>(class_unique_id<T>());
        }
    };
 
    /** @} */ // endgroup utils
} // namespace bnb