Listing 7 Definitions for graphics routines
/************************************************* * USRDEF.H -- additions to <stddef.h> * * last revised: 02/28/93 ************************************************/ #define SEEN_USRDEF #define SEEN_USRDEF /* condition codes */ #define FALSE 0 #define TRUE !FALSE #define OK 0 #define FAIL --1 /* synonym types */ typedef unsigned char Byte; typedef int Boolean; #endif