| 10 |
|
|
| 11 |
|
#ifdef _WIN32 |
| 12 |
|
|
| 13 |
+ |
#include <stdlib.h> |
| 14 |
+ |
|
| 15 |
|
#if (RAND_MAX <= 65536) |
| 16 |
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#define random() ((long)rand()<<16^(long)rand()<<6^(long)rand()>>4) |
| 17 |
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#else |
| 19 |
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#endif |
| 20 |
|
#define srandom(s) srand((unsigned)(s)) |
| 21 |
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|
| 22 |
< |
#define frandom() (rand()*(1./RAND_MAX)) |
| 22 |
> |
#define frandom() (rand()*(1./(RAND_MAX+.5))) |
| 23 |
|
|
| 24 |
|
#else |
| 23 |
– |
#ifdef BSD |
| 25 |
|
|
| 25 |
– |
extern long random(); |
| 26 |
– |
|
| 27 |
– |
#define frandom() (random()*(1./2147483648.)) |
| 28 |
– |
|
| 29 |
– |
#else |
| 30 |
– |
|
| 31 |
– |
extern long lrand48(); |
| 32 |
– |
extern double drand48(); |
| 33 |
– |
|
| 26 |
|
#define random() lrand48() |
| 27 |
|
#define srandom(s) srand48((long)(s)) |
| 28 |
|
#define frandom() drand48() |
| 29 |
|
|
| 30 |
|
#endif |
| 39 |
– |
#endif |
| 31 |
|
|
| 32 |
|
extern unsigned short *urperm; |
| 33 |
|
extern int urmask; |
| 34 |
|
|
| 35 |
< |
#define urand(i) (urmask ? (urperm[(i)&urmask]+frandom())/(urmask+1) \ |
| 35 |
> |
#define urand(i) (urmask ? (urperm[(i)&urmask]+frandom())/(urmask+1.) \ |
| 36 |
|
: frandom()) |
| 37 |
|
|
| 38 |
|
extern int initurand(int size); |
