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      1 /* Header: util.h,v 7.0 86/10/08 15:14:37 lwall Exp */
      2 
      3 /* Log:	util.h,v
      4  * Revision 7.0  86/10/08  15:14:37  lwall
      5  * Split into separate files.  Added amoebas and pirates.
      6  *
      7  */
      8 
      9 #define RANDRAND 1152921504606846976.0 /* that's 2**60 */
     10 #define HALFRAND 0x40000000 /* that's 2**30 */
     11 #define myrand() (int)random()
     12 #define rand_mod(m) ((myrand() / 37) % (m)) /* pick number in 0..m-1 */
     13 /*
     14  * The reason for the /37 above is that our random number generator yields
     15  * successive evens and odds, for some reason.  This makes strange star maps.
     16  */
     17 
     18     /* we get fractions of seconds from calling ftime on timebuf */
     19 
     20 extern struct timespec timebuf;
     21 #define roundsleep(x) (clock_gettime(CLOCK_REALTIME, &timebuf),sleep(timebuf.tv_nsec > (500 * 1000 * 1000) ?x+1:x))
     22 
     23 #define waiting 0
     24 
     25 #ifdef NOTDEF
     26 EXT int len_last_line_got INIT(0);
     27 			/* strlen of some_buf after */
     28 			/*  some_buf = get_a_line(bufptr,buffersize,fp) */
     29 #endif
     30 
     31 #ifdef NOTDEF
     32 /* is the string for makedir a directory name or a filename? */
     33 
     34 #define MD_DIR 0
     35 #define MD_FILE 1
     36 #endif
     37 
     38 void util_init(void);
     39 void movc3(int, char *, char *);
     40 __dead void no_can_do(const char *);
     41 int exdis(int);
     42 void *safemalloc(size_t size);
     43 char *safecpy(char *, const char *, size_t);
     44 char *cpytill(char *, const char *, int);
     45 char *instr(const char *, const char *);
     46 #ifdef SETUIDGID
     47 int eaccess(const char *, mode_t);
     48 #endif
     49 __dead void prexit(const char *);
     50 char *savestr(const char *);
     51 char *getval(const char *, const char *);
     52