| 1 |
< |
/* Copyright (c) 1986 Regents of the University of California */ |
| 2 |
< |
|
| 3 |
< |
/* SCCSid "$SunId$ LBL" */ |
| 4 |
< |
|
| 1 |
> |
/* RCSid $Id$ */ |
| 2 |
|
/* |
| 3 |
< |
* random.h - header file for random(3) function. |
| 7 |
< |
* |
| 8 |
< |
* 10/1/85 |
| 3 |
> |
* random.h - header file for random(3) and urand() function. |
| 4 |
|
*/ |
| 5 |
+ |
#ifndef _RAD_RANDOM_H_ |
| 6 |
+ |
#define _RAD_RANDOM_H_ |
| 7 |
|
|
| 8 |
< |
extern long random(); |
| 8 |
> |
#include <stdlib.h> |
| 9 |
|
|
| 10 |
< |
#define frandom() (random()*(1./2147483648.)) |
| 10 |
> |
#ifdef __cplusplus |
| 11 |
> |
extern "C" { |
| 12 |
> |
#endif |
| 13 |
> |
|
| 14 |
> |
#ifdef _WIN32 |
| 15 |
> |
|
| 16 |
> |
#if (RAND_MAX <= 65536) |
| 17 |
> |
#define random() ((long)rand()<<16^(long)rand()<<6^(long)rand()>>4) |
| 18 |
> |
#else |
| 19 |
> |
#define random() rand() |
| 20 |
> |
#endif |
| 21 |
> |
#define srandom(s) srand((unsigned)(s)) |
| 22 |
> |
|
| 23 |
> |
#define frandom() (rand()*(1./(RAND_MAX+.5))) |
| 24 |
> |
|
| 25 |
> |
#else |
| 26 |
> |
|
| 27 |
> |
#define random() lrand48() |
| 28 |
> |
#define srandom(s) srand48((long)(s)) |
| 29 |
> |
#define frandom() drand48() |
| 30 |
> |
|
| 31 |
> |
#endif |
| 32 |
> |
|
| 33 |
> |
extern unsigned short *urperm; |
| 34 |
> |
extern int urmask; |
| 35 |
> |
|
| 36 |
> |
#define urand(i) (urmask ? (urperm[(i)&urmask]+frandom())/(urmask+1.) \ |
| 37 |
> |
: frandom()) |
| 38 |
> |
|
| 39 |
> |
extern int initurand(int size); |
| 40 |
> |
|
| 41 |
> |
/* defined in urand.c */ |
| 42 |
> |
extern int ilhash(int *d, int n); |
| 43 |
> |
/* defined in urind.c */ |
| 44 |
> |
extern int urind(int s, int i); |
| 45 |
> |
/* defined in multisamp.c */ |
| 46 |
> |
extern void multisamp(double t[], int n, double r); |
| 47 |
> |
|
| 48 |
> |
|
| 49 |
> |
#ifdef __cplusplus |
| 50 |
> |
} |
| 51 |
> |
#endif |
| 52 |
> |
#endif /* _RAD_RANDOM_H_ */ |
| 53 |
> |
|
