random.h File Reference

random number generator of L'Ecuyer with Bays-Durham shuffle and added safeguards (numeric recipes) More...

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Defines
#define	IM1   2147483563
#define	IM2   2147483399
#define	AM   (1.0/IM1)
#define	IMM1   (IM1-1)
#define	IA1   40014
#define	IA2   40692
#define	IQ1   53668
#define	IQ2   52774
#define	IR1   12211
#define	IR2   3791
#define	NTAB   32
#define	NDIV   (1+IMM1/NTAB)
#define	EPS   1.2e-7
#define	RNMX   (1.0-EPS)
#define	MODMULT(a, b, c, m, s)   q = s/a; s = b*(s-a*q)-c*q; if (s < 0) s += m;
Functions
double	ran2 (long *idum)
	Long period (> 2.0e18) random number generator of L'Ecuyer with Bays-Durham shuffle and added safeguards. Returns a uniform random deviate between 0.0 and 1.0 (exclusive of the endpoints).
unsigned short	random (long *seed, unsigned short max)
	returns a random value between zero and max, Long period (> 2.0e18) (see ran2())
uint32_t	randomUInt32 (long *seed, uint32_t max)
double	combinedLCG (void)
void	initLCG (long init_s1, long init_s2)
Variables
static long	CF_MM_s1 = 1
static long	CF_MM_s2 = 1

---

Detailed Description

Todo:

seed ist fuer die random-Funktion nicht dokumentiert.

Definition in file random.h.

---

Define Documentation

#define AM   (1.0/IM1)

Definition at line 79 of file random.h.

Referenced by ran2().

#define EPS   1.2e-7

Definition at line 89 of file random.h.

#define IA1   40014

Definition at line 81 of file random.h.

Referenced by ran2().

#define IA2   40692

Definition at line 82 of file random.h.

Referenced by ran2().

#define IM1   2147483563

Definition at line 77 of file random.h.

Referenced by ran2().

#define IM2   2147483399

Definition at line 78 of file random.h.

Referenced by ran2().

#define IMM1   (IM1-1)

Definition at line 80 of file random.h.

Referenced by ran2().

#define IQ1   53668

Definition at line 83 of file random.h.

Referenced by ran2().

#define IQ2   52774

Definition at line 84 of file random.h.

Referenced by ran2().

#define IR1   12211

Definition at line 85 of file random.h.

Referenced by ran2().

#define IR2   3791

Definition at line 86 of file random.h.

Referenced by ran2().

#define MODMULT	(	a,
		b,
		c,
		m,
		s		)	q = s/a; s = b*(s-a*q)-c*q; if (s < 0) s += m;

Definition at line 256 of file random.h.

Referenced by combinedLCG().

#define NDIV   (1+IMM1/NTAB)

Definition at line 88 of file random.h.

Referenced by ran2().

#define NTAB   32

Definition at line 87 of file random.h.

Referenced by ran2().

#define RNMX   (1.0-EPS)

Definition at line 90 of file random.h.

Referenced by ran2().

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Function Documentation

double combinedLCG

(

void

)

Definition at line 258 of file random.h.

References CF_MM_s1, CF_MM_s2, MODMULT, and q().

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void initLCG	(	long	init_s1,
		long	init_s2
	)

Definition at line 270 of file random.h.

References CF_MM_s1, and CF_MM_s2.

uint32_t randomUInt32	(	long *	seed,
		uint32_t	max
	)			[inline]

Definition at line 214 of file random.h.

References ran2().

Referenced by CFPointFilter::addFilterRule(), and CFPointFilter::pointPassedFilter().

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Variable Documentation

long CF_MM_s1 = 1 [static]

Definition at line 253 of file random.h.

Referenced by combinedLCG(), and initLCG().

long CF_MM_s2 = 1 [static]

Definition at line 254 of file random.h.

Referenced by combinedLCG(), and initLCG().