1164Seric /*
2164Seric **  USEFUL.H -- Some useful stuff.
3402Seric **
4*1388Seric **	@(#)useful.h	1.3	10/11/80
5164Seric */
6164Seric 
7*1388Seric # define bool	char
8164Seric # define TRUE	1
9164Seric # define FALSE	0
10164Seric 
11164Seric # ifndef NULL
12164Seric # define NULL	0
13164Seric # endif NULL
14