Minimal Standard Random Numbers

Minimal Standard RANdom number generator. More...

Collaboration diagram for Minimal Standard Random Numbers:

Files
file	msr.h

Data Structures
struct	bn_unif
struct	bn_gauss

Macros
#define	BN_CK_UNIF(_p)   BU_CKMAG(_p, BN_UNIF_MAGIC, "bn_unif")
#define	BN_CK_GAUSS(_p)   BU_CKMAG(_p, BN_GAUSS_MAGIC, "bn_gauss")
#define	BN_UNIF_LONG(_p)
#define	BN_UNIF_DOUBLE(_p)
#define	BN_UNIF_CIRCLE(_p, _x, _y, _r)
#define	BN_UNIF_SPHERE(_p, _x, _y, _z, _r)
#define	BN_GAUSS_DOUBLE(_p)

Functions
struct bn_unif *	bn_unif_init (long setseed, int method)
void	bn_unif_free (struct bn_unif *p)
long	bn_unif_long_fill (struct bn_unif *p)
double	bn_unif_double_fill (struct bn_unif *p)
struct bn_gauss *	bn_gauss_init (long setseed, int method)
void	bn_gauss_free (struct bn_gauss *p)
double	bn_gauss_fill (struct bn_gauss *p)

Detailed Description

Minimal Standard RANdom number generator.

From:

Stephen K. Park and Keith W. Miller
"Random number generators: good ones are hard to find"
CACM vol 31 no 10, Oct 88

Macro Definition Documentation

BN_CK_UNIF

#define BN_CK_UNIF

(

_p

)

BU_CKMAG(_p, BN_UNIF_MAGIC, "bn_unif")

Definition at line 62 of file msr.h.

BN_CK_GAUSS

#define BN_CK_GAUSS

(

_p

)

BU_CKMAG(_p, BN_GAUSS_MAGIC, "bn_gauss")

Definition at line 63 of file msr.h.

BN_UNIF_LONG

#define BN_UNIF_LONG

(

_p

)

Value:

    (((_p)->msr_long_ptr) ? \
     (_p)->msr_longs[--(_p)->msr_long_ptr] : \
     bn_unif_long_fill(_p))

Definition at line 241 of file msr.h.

BN_UNIF_DOUBLE

#define BN_UNIF_DOUBLE

(

_p

)

Value:

    (((_p)->msr_double_ptr) ? \
     (_p)->msr_doubles[--(_p)->msr_double_ptr] : \
     bn_unif_double_fill(_p))

Definition at line 245 of file msr.h.

BN_UNIF_CIRCLE

#define BN_UNIF_CIRCLE	(		_p,
			_x,
			_y,
			_r
	)

Value:

        { \
        do { \
            (_x) = 2.0*BN_UNIF_DOUBLE((_p)); \
            (_y) = 2.0*BN_UNIF_DOUBLE((_p)); \
            (_r) = (_x)*(_x)+(_y)*(_y); \
        } while ((_r) >= 1.0);  }

Definition at line 250 of file msr.h.

BN_UNIF_SPHERE

#define BN_UNIF_SPHERE	(		_p,
			_x,
			_y,
			_z,
			_r
	)

Value:

        { \
        do { \
            (_x) = 2.0*BN_UNIF_DOUBLE(_p); \
            (_y) = 2.0*BN_UNIF_DOUBLE(_p); \
            (_z) = 2.0*BN_UNIF_DOUBLE(_p); \
            (_r) = (_x)*(_x)+(_y)*(_y)+(_z)*(_z);\
        } while ((_r) >= 1.0) }

Definition at line 257 of file msr.h.

BN_GAUSS_DOUBLE

#define BN_GAUSS_DOUBLE

(

_p

)

Value:

    (((_p)->msr_gauss_ptr) ? \
     (_p)->msr_gausses[--(_p)->msr_gauss_ptr] : \
     bn_gauss_fill(_p))

Definition at line 265 of file msr.h.

Function Documentation

bn_unif_init()

struct bn_unif * bn_unif_init	(	long	setseed,
		int	method
	)

bn_unif_free()

void bn_unif_free

(

struct bn_unif *

p

)

bn_unif_long_fill()

long bn_unif_long_fill

(

struct bn_unif *

p

)

bn_unif_double_fill()

double bn_unif_double_fill

(

struct bn_unif *

p

)

bn_gauss_init()

struct bn_gauss * bn_gauss_init	(	long	setseed,
		int	method
	)

bn_gauss_free()

void bn_gauss_free

(

struct bn_gauss *

p

)

bn_gauss_fill()

double bn_gauss_fill

(

struct bn_gauss *

p

)