Unnamed

class ldraw_error : public std::exception{	public:		enum error_type { warning, user_error, fatal, fixme };				explicit ldraw_error(const std::string &location, error_type type, const std::string &details)			: m_location(location), m_type(type), m_details(details) {}		virtual ~ldraw_error() throw() {}				virtual const char* what() const throw() {			std::string s;						switch(m_type) {				case warning:					s = "warning";					break;				case user_error:					s = "user_error";					break;				case fatal:					s = "error";					break;				case fixme:					s  = "fixme";					break;				default:					s = "";			}						return (std::string("[libLDR] ") + s + " in " + m_location + ": " + m_details).c_str();		}				const std::string location() const { return m_location; }		error_type type() const { return m_type; }		const std::string details() const { return m_details; }			protected:		std::string m_location;		error_type m_type;		std::string m_details;};