Exception class

namespace dexc
{
    enum category{INFO,WARNING,CRITICAL};
    class exception : public std::exception
    {
    private:
        int code;
        category cat;
        std::string msg;
    public:
        exception(int code, category cat=INFO, std::string msg="")
        {
            this->code=code;
            this->cat=cat;
            this->msg=msg;

        }
        std::string get_catStr()
        {
            switch(cat)
            {
                case INFO:
                    return "INFO";
                    break;
                case WARNING:
                    return "WARNING";
                    break;
                case CRITICAL:
                    return "CRITICAL";
                    break;
                default:
                    return "UNKNOWN";
                    break;
            }
        }
        int get_code()
        {
            return code;
        }
        std::string what()
        {
            return msg;
        }
        category get_cat()
        {
            return cat;
        }
    };
};