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root/Development/ray/src/common/urand.c
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Comparing ray/src/common/urand.c (file contents):
Revision 2.1 by greg, Tue Nov 12 16:55:47 1991 UTC vs.
Revision 2.3 by gregl, Mon Dec 1 09:55:00 1997 UTC

# Line 1 | Line 1
1 < /* Copyright (c) 1991 Regents of the University of California */
1 > /* Copyright (c) 1997 Silicon Graphics, Inc. */
2  
3   #ifndef lint
4 < static char SCCSid[] = "$SunId$ LBL";
4 > static char SCCSid[] = "$SunId$ SGI";
5   #endif
6  
7   /*
# Line 14 | Line 14 | static char SCCSid[] = "$SunId$ LBL";
14  
15   extern char  *malloc();
16  
17 < short  *urperm;         /* urand() permutation */
17 > short  *urperm = NULL;  /* urand() permutation */
18   int  urmask;            /* bits used in permutation */
19  
20  
21 + int
22   initurand(size)         /* initialize urand() for size entries */
23   int  size;
24   {
25          int  order, n;
26          register int  i, offset;
27  
28 +        if (urperm != NULL)
29 +                free((char *)urperm);
30          size--;
31          for (i = 1; size >>= 1; i++)
32                  ;
# Line 44 | Line 47 | int  size;
47                          else
48                                  urperm[i+offset]++;
49                  }
50 +        return(1<<order);
51   }
52  
53  

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