zeda_rand.h

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/* ZEDA - Elementary Data and Algorithms
 * Copyright (C) 1998 Tomomichi Sugihara (Zhidao)
 */
#include <zeda/zeda_misc.h>

#ifndef __ZEDA_RAND_H__
#define __ZEDA_RAND_H__

__BEGIN_DECLS

#ifndef __KERNEL__

/* ********************************************************** *//* ************************************************** */

#define Z_RAND_MT_HISTORY 623

/* ********************************************************** *//********************************************************* */
typedef struct{
  ulong  x[Z_RAND_MT_HISTORY+1]; 
  int    index;                  
  bool   nd_sw;                  
  double nd_last;                
} zRandMT;

__EXPORT void zRandInitMT(zRandMT *mt);

__EXPORT int zRandMTI(zRandMT *mt, int min, int max);

__EXPORT double zRandMTF(zRandMT *mt, double min, double max);

__EXPORT double zRandMTN(zRandMT *mt);

__EXPORT double zRandMTNU(zRandMT *mt);

__EXPORT zRandMT *zRandMTDefault(void);

#define zRandInit()     zRandInitMT( NULL )
#define zRandI(min,max) zRandMTI( NULL, min, max )
#define zRandF(min,max) zRandMTF( NULL, min, max )
#define zRandN()        zRandMTN( NULL )
#define zRandNU()       zRandMTNU( NULL )

#endif /* __KERNEL__ */

__END_DECLS

#endif /* __ZEDA_RAND_H__ */