Class Error

include/CL/opencl.hpp:749–788

! \brief Exception class * * This may be thrown by API functions when CL_HPP_ENABLE_EXCEPTIONS is defined. */

     *  This may be thrown by API functions when CL_HPP_ENABLE_EXCEPTIONS is defined.
     */
    class Error : public std::exception
    {
    private:
        cl_int err_;
        const char * errStr_;
    public:
        /*! \brief Create a new CL error exception for a given error code
         *  and corresponding message.
         * 
         *  \param err error code value.
         *
         *  \param errStr a descriptive string that must remain in scope until
         *                handling of the exception has concluded.  If set, it
         *                will be returned by what().
         */
        Error(cl_int err, const char * errStr = nullptr) : err_(err), errStr_(errStr)
        {}

        ~Error() throw() {}

        /*! \brief Get error string associated with exception
         *
         * \return A memory pointer to the error message string.
         */
        virtual const char * what() const throw ()
        {
            if (errStr_ == nullptr) {
                return "empty";
            }
            else {
                return errStr_;
            }
        }

        /*! \brief Get error code associated with exception
         *
         *  \return The error code.
         */
        cl_int err(void) const { return err_; }
    };
#define CL_HPP_ERR_STR_(x) #x
#else
#define CL_HPP_ERR_STR_(x) nullptr