Client Library Desires to Register with the HDF5 Error API Code Example:

(Register Client Library Use Case Scenario)

/* Client error class ID */
hid_t CLIENT_ERROR;

/* Major error code IDs */
hid_t CLIENT_ERR_MAJOR_IO;		/* Errors on I/O */
hid_t CLIENT_ERR_MAJOR_FILE;	/* Errors on file access */
   .
   .
   .

/* Minor error code IDs */
hid_t CLIENT_ERR_MINOR_PERM;	/* Invalid permissions */
hid_t CLIENT_ERR_MINOR_HDF5;	/* Error in HDF5 */
   .
   .
   .

int Client_register_error
{
        ssize_t         name_len, mesg_len;
        char            class_name[32], mesg[32];
        H5E_mesg_t      mesg_type;
        
	/* Register the error class for all client errors */
	CLIENT_ERROR=H5Eregister_class("Client Library", "A_CLIENT", "1.0");

        /* Query class name */
        name_len = H5Eget_class_name(CLIENT_ERROR, class_name, 32);

	/* Register major error codes */
	CLIENT_ERR_MAJOR_IO=H5Ecreate_mesg(CLIENT_ERROR, H5E_MAJOR, "Errors on I/O");
	CLIENT_ERR_MAJOR_FILE=H5Ecreate_mesg(CLIENT_ERROR, H5E_MAJOR, "Errors on file access");

        /* Query error message */
        mesg_len = H5Eget_mesg(CLIENT_ERR_MAJOR_IO, mesg_type, mesg);        
		.
		.
		.

	/* Register minor error codes */
	CLIENT_ERR_MINOR_PERM=H5Ecreate_mesg(CLIENT_ERROR, H5E_MINOR, "Invalid Permissions");
	CLIENT_ERR_MINOR_HDF5=H5Ecreate_mesg(CLIENT_ERROR, H5E_MINOR, "Error in HDF5");
		.
		.
		.
}