--- ray/src/common/random.h	2003/03/27 16:33:38	2.10
+++ ray/src/common/random.h	2003/06/29 16:51:48	2.14
@@ -1,10 +1,13 @@
-/* RCSid $Id: random.h,v 2.10 2003/03/27 16:33:38 greg Exp $ */
+/* RCSid $Id: random.h,v 2.14 2003/06/29 16:51:48 greg Exp $ */
 /*
  *  random.h - header file for random(3) and urand() function.
  */
+#ifndef _RAD_RANDOM_H_
+#define _RAD_RANDOM_H_
+#ifdef __cplusplus
+extern "C" {
+#endif
 
-#include "copyright.h"
-
 #ifdef  NORANDOM
 
 #undef  random
@@ -15,9 +18,9 @@
 #define  urand(i)	0.5
 #define  initurand(n)	(n)
 
-#else
+#else	/* ! NORANDOM */
 
-#ifdef	MSDOS
+#ifdef	_WIN32
 
 #if (RAND_MAX <= 65536)
 #define random()	((long)rand()<<16^(long)rand()<<6^(long)rand()>>4)
@@ -52,31 +55,29 @@ extern double  drand48();
 #define  urand(i)	frandom()
 #define  initurand(n)	(n)
 
-#else
+#else	/* ! MC */
 
 extern unsigned short	*urperm;
 extern int	urmask;
 
 #define	 urand(i)	((urperm[(i)&urmask]+frandom())/(urmask+1))
 
-#endif
+extern int	initurand(int size);
 
-#endif
+#endif	/* ! MC */
 
-#ifdef NOPROTO
+#endif	/* ! NORANDOM */
 
-extern int	initurand();
-extern int	ilhash();
-extern int	urind();
-extern void	multisamp();
-
-#else
 				/* defined in urand.c */
-extern int	initurand(int size);
 extern int	ilhash(int *d, int n);
 				/* defined in urind.c */
 extern int	urind(int s, int i);
 				/* defined in multisamp.c */
 extern void	multisamp(double t[], int n, double r);
 
+
+#ifdef __cplusplus
+}
 #endif
+#endif /* _RAD_RANDOM_H_ */
+