66 lines
1.3 KiB
C
66 lines
1.3 KiB
C
/*
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** USEFUL.H -- Some useful stuff.
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**
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** @(#)useful.h 1.1 94/10/31 SMI; from UCB 3.13 3/26/83
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*/
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# ifndef makedev
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# include <sys/types.h>
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# endif
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/* support for bool type */
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typedef char bool;
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# define TRUE 1
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# define FALSE 0
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# ifndef NULL
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# define NULL 0
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# endif NULL
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/* bit hacking */
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# define bitset(bit, word) (((word) & (bit)) != 0)
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/* some simple functions */
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# ifndef max
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# define max(a, b) ((a) > (b) ? (a) : (b))
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# define min(a, b) ((a) < (b) ? (a) : (b))
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# endif max
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/* assertions */
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# ifndef NASSERT
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# define ASSERT(expr, msg, parm)\
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if (!(expr))\
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{\
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fprintf(stderr, "assertion botch: %s:%d: ", __FILE__, __LINE__);\
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fprintf(stderr, msg, parm);\
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}
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# else NASSERT
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# define ASSERT(expr, msg, parm)
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# endif NASSERT
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/* sccs id's */
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# ifndef lint
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# define SCCSID(arg) static char SccsId[] = "arg";
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# else lint
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# define SCCSID(arg)
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# endif lint
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/* define the types of some common functions */
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extern char *strcpy(), *strncpy();
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extern char *strcat(), *strncat();
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extern char *malloc();
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extern char *index(), *rindex();
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extern int errno;
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extern char *sprintf();
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extern time_t time();
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extern char *ctime();
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# ifndef V6
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extern char *getenv();
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# endif V6
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# ifndef VMUNIX
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typedef unsigned short u_short;
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typedef long u_long;
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typedef char u_char;
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typedef int void;
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# endif VMUNIX
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