CToolBox/include/toolbox/errcode.h

#ifndef TOOLBOX_ERRCODE_H
#define TOOLBOX_ERRCODE_H

#define RET_TYPE unsigned char

#define RET_OK    ((RET_TYPE) 0L)		/* No Error */
#define RET_EFM   ((RET_TYPE) 1L)		/* Failed to Malloc */
#define RET_EIDNE ((RET_TYPE) 2L)		/* Item Does Not Exist */
#define RET_EVBTS ((RET_TYPE) 3L)		/* Value Bigger Than Size */
#define RET_EVN   ((RET_TYPE) 4L)		/* Value is Null */
#define RET_EIAE  ((RET_TYPE) 5L)		/* Item Already Exist */

#endif