[ViewVC] Diff of: radiance/ray/src/common/random.h

Comparing ray/src/common/random.h (file contents):
Revision 2.5 by gregl, Mon Dec 1 09:55:00 1997 UTC vs.
Revision 2.7 by gwlarson, Sat Jan 9 09:15:48 1999 UTC

#	Line 1 \| Line 1
1	<	/* Copyright (c) 1997 Silicon Graphics, Inc. */
1	>	/* Copyright (c) 1999 Silicon Graphics, Inc. */
2
3		/* SCCSid "$SunId$ SGI" */
4
#	Line 11 \| Line 11
11		#ifdef MSDOS
12
13		#define random() ((long)rand()<<16^(long)rand()<<6^(long)rand()>>4)
14	+	#define srandom(s) srand((unsigned)(s))
15
16		#define frandom() (rand()*(1./32768.))
17
#	Line 27 \| Line 28 \| extern long lrand48();
28		extern double drand48();
29
30		#define random() lrand48()
31	+	#define srandom(s) srand48((long)(s))
32		#define frandom() drand48()
33
34		#endif
#	Line 39 \| Line 41 \| extern double drand48();
41
42		#else
43
44	<	extern short *urperm;
44	>	extern unsigned short *urperm;
45		extern int urmask, initurand();
46
47		#define urand(i) ((urperm[(i)&urmask]+frandom())/(urmask+1))

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