usr/src/usr.sbin/sendmail/src/useful.h

/*
 * Copyright (c) 1988 Regents of the University of California.
 * All rights reserved.
 *
 * %sccs.include.redist.c%
 *
 *      @(#)useful.h    6.2 (Berkeley) %G%
 */

# include <sys/types.h>

/* support for bool type */
typedef char    bool;
# define TRUE   1
# define FALSE  0

# ifndef NULL
# define NULL   0
# endif /* NULL */

/* bit hacking */
# define bitset(bit, word)      (((word) & (bit)) != 0)

/* some simple functions */
# ifndef max
# define max(a, b)      ((a) > (b) ? (a) : (b))
# define min(a, b)      ((a) < (b) ? (a) : (b))
# endif

/* assertions */
# ifndef NASSERT
# define ASSERT(expr, msg, parm)\
        if (!(expr))\
        {\
                fprintf(stderr, "assertion botch: %s:%d: ", __FILE__, __LINE__);\
                fprintf(stderr, msg, parm);\
        }
# else /* NASSERT */
# define ASSERT(expr, msg, parm)
# endif /* NASSERT */

/* sccs id's */
# ifndef lint
# define SCCSID(arg)    static char SccsId[] = "arg";
# else
# define SCCSID(arg)
# endif