| 8 |
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extern "C" { |
| 9 |
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#endif |
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|
| 11 |
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|
| 12 |
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#include "copyright.h" |
| 13 |
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|
| 14 |
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#ifdef NORANDOM |
| 15 |
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|
| 16 |
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#undef random |
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#define random() 1073741820 |
| 18 |
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#undef srandom |
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#define srandom(s) (s) |
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#define frandom() 0.5 |
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#define urand(i) 0.5 |
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#define initurand(n) (n) |
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|
| 24 |
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#else |
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|
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#ifdef _WIN32 |
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|
| 13 |
+ |
#include <stdlib.h> |
| 14 |
+ |
|
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#if (RAND_MAX <= 65536) |
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#define random() ((long)rand()<<16^(long)rand()<<6^(long)rand()>>4) |
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#else |
| 19 |
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#endif |
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#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 |
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|
| 24 |
|
#else |
| 38 |
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#ifdef BSD |
| 25 |
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|
| 40 |
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extern long random(); |
| 41 |
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|
| 42 |
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#define frandom() (random()*(1./2147483648.)) |
| 43 |
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|
| 44 |
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#else |
| 45 |
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|
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extern long lrand48(); |
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extern double drand48(); |
| 28 |
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|
| 31 |
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#define frandom() drand48() |
| 32 |
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|
| 33 |
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#endif |
| 54 |
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#endif |
| 34 |
|
|
| 56 |
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#ifdef MC |
| 57 |
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|
| 58 |
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#define urand(i) frandom() |
| 59 |
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#define initurand(n) (n) |
| 60 |
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|
| 61 |
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#else |
| 62 |
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|
| 35 |
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extern unsigned short *urperm; |
| 36 |
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extern int urmask; |
| 37 |
|
|
| 38 |
< |
#define urand(i) ((urperm[(i)&urmask]+frandom())/(urmask+1)) |
| 38 |
> |
#define urand(i) (urmask ? (urperm[(i)&urmask]+frandom())/(urmask+1.) \ |
| 39 |
> |
: frandom()) |
| 40 |
|
|
| 41 |
< |
#endif |
| 41 |
> |
extern int initurand(int size); |
| 42 |
|
|
| 70 |
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#endif |
| 71 |
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|
| 43 |
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/* defined in urand.c */ |
| 73 |
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extern int initurand(int size); |
| 44 |
|
extern int ilhash(int *d, int n); |
| 45 |
|
/* defined in urind.c */ |
| 46 |
|
extern int urind(int s, int i); |
