14 #define min(x,y) (x>y ? y: x)
15 #define max(x,y) (x>y ? x: y)
17 void refresh_screen (void *);
20 char *strdup (const char *);
23 /* AIX compiler doesn't understand '\e' */
24 #define ESC_CHAR '\033'
25 #define ESC_STR "\033"
28 # define xgetch x_getch