quasi.h

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/* quasi.h		Quasi-Random Number generator, an object oriented
                        implementation in C.

		returns an n-dimensional vector of values in 0.0..1.0
		maximum n is currently hardwired to 52

			See W.H. Press and S.A. Teukolsky, 1989, Quasi- (that is,
			Sub-) Random Numbers, Computers in Physics V3, No. 6,
			(Nov/Dec 1989), pp. 76-79


                rcsid: @(#)quasi.h	1.5 10:15:46 4/18/94   EFC

*/

#ifndef QUASI_RANDOM_H_
#define QUASI_RANDOM_H_ 1.5


typedef struct       /* data structure to maintain internal information */
{                    /* this allows multiple independent generators to exist in
                        a single application (each one would have its own
			QRStruct) */

      int err_flag;             /* err_flag == 0 if all is well */
      int dim;
      unsigned long int index;
      unsigned long int *ix;
} QRStruct;

#ifdef __cplusplus
extern "C" {
#endif

/* initialized the data structure for this dimension */
int QuasiRandomInitialize(QRStruct* qr, int dimension);

/* release internal storage for this QRStruct */
void QuasiRandomRelease(QRStruct* qr);

/* get an n-dimensional quasi-random number */
void QuasiRandomNumber(QRStruct* qr, float* x);


#ifdef __cplusplus
}
#endif

#endif