| 2 |
|
/* |
| 3 |
|
* random.h - header file for random(3) and urand() function. |
| 4 |
|
*/ |
| 5 |
+ |
#ifndef _RAD_RANDOM_H_ |
| 6 |
+ |
#define _RAD_RANDOM_H_ |
| 7 |
+ |
#ifdef __cplusplus |
| 8 |
+ |
extern "C" { |
| 9 |
+ |
#endif |
| 10 |
|
|
| 11 |
+ |
|
| 12 |
|
#include "copyright.h" |
| 13 |
|
|
| 14 |
|
#ifdef NORANDOM |
| 23 |
|
|
| 24 |
|
#else |
| 25 |
|
|
| 26 |
< |
#ifdef MSDOS |
| 26 |
> |
#ifdef _WIN32 |
| 27 |
|
|
| 28 |
+ |
#if (RAND_MAX <= 65536) |
| 29 |
|
#define random() ((long)rand()<<16^(long)rand()<<6^(long)rand()>>4) |
| 30 |
+ |
#else |
| 31 |
+ |
#define random() rand() |
| 32 |
+ |
#endif |
| 33 |
|
#define srandom(s) srand((unsigned)(s)) |
| 34 |
|
|
| 35 |
< |
#define frandom() (rand()*(1./32768.)) |
| 35 |
> |
#define frandom() (rand()*(1./RAND_MAX)) |
| 36 |
|
|
| 37 |
|
#else |
| 38 |
|
#ifdef BSD |
| 69 |
|
|
| 70 |
|
#endif |
| 71 |
|
|
| 62 |
– |
#ifdef NOPROTO |
| 63 |
– |
|
| 64 |
– |
extern int initurand(); |
| 65 |
– |
extern int ilhash(); |
| 66 |
– |
extern int urind(); |
| 67 |
– |
extern void multisamp(); |
| 68 |
– |
|
| 69 |
– |
#else |
| 72 |
|
/* defined in urand.c */ |
| 73 |
|
extern int initurand(int size); |
| 74 |
|
extern int ilhash(int *d, int n); |
| 77 |
|
/* defined in multisamp.c */ |
| 78 |
|
extern void multisamp(double t[], int n, double r); |
| 79 |
|
|
| 80 |
+ |
|
| 81 |
+ |
#ifdef __cplusplus |
| 82 |
+ |
} |
| 83 |
|
#endif |
| 84 |
+ |
#endif /* _RAD_RANDOM_H_ */ |
| 85 |
+ |
|
