include/CL/Utils/Error.hpp

#pragma once

// OpenCL Utils includes
#include "OpenCLUtilsCpp_Export.h"

// OpenCL Utils includes
#include <CL/Utils/ErrorCodes.h>

// OpenCL includes
#include <CL/opencl.hpp>

namespace cl {
namespace util {
#if defined(CL_HPP_ENABLE_EXCEPTIONS)
    /*! \brief Exception class
     *
     *  This may be thrown by SDK utility functions when
     * CL_HPP_ENABLE_EXCEPTIONS is defined.
     */
    class Error : public std::exception {
    private:
        int err_;
        const char* errStr_;

    public:
        /*! \brief Create a new SDK 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 = NULL): 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_ == NULL)
            {
                return "empty";
            }
            else
            {
                return errStr_;
            }
        }

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

    namespace detail {
        UTILSCPP_EXPORT cl_int errHandler(cl_int err, cl_int* errPtr,
                                          const char* errStr = nullptr);
    }

}
}