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Comparing ray/src/common/random.h (file contents):
Revision 2.18 by greg, Sat Apr 9 15:39:16 2011 UTC vs.
Revision 2.22 by greg, Thu Jul 16 05:08:57 2015 UTC

# Line 4 | Line 4
4   */
5   #ifndef _RAD_RANDOM_H_
6   #define _RAD_RANDOM_H_
7 +
8 + #include <stdlib.h>
9 +
10   #ifdef __cplusplus
11   extern "C" {
12   #endif
# Line 20 | Line 23 | extern "C" {
23   #define frandom()       (rand()*(1./(RAND_MAX+.5)))
24  
25   #else
23 – #ifdef  BSD
26  
25 – extern long  random();
26 –
27 – #define  frandom()      (random()*(1./2147483648.))
28 –
29 – #else
30 –
31 – extern long  lrand48();
32 – extern double  drand48();
33 –
27   #define  random()       lrand48()
28   #define  srandom(s)     srand48((long)(s))
29   #define  frandom()      drand48()
30  
31   #endif
39 – #endif
32  
33   extern unsigned short   *urperm;
34   extern int      urmask;
35  
36 < #define  urand(i)       (urmask ? (urperm[(i)&urmask]+frandom())/(urmask+1) \
36 > #define  urand(i)       (urmask ? (urperm[(i)&urmask]+frandom())/(urmask+1.) \
37                                  : frandom())
38  
39   extern int      initurand(int size);

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