rand.cpp File Reference

Pseudo random number generator. More...

#include <openbabel/babelconfig.h>
#include <stdlib.h>
#include <stdio.h>
#include <math.h>
#include <openbabel/rand.h>
#include <time.h>

Namespaces
namespace	OpenBabel
Defines
#define	True   1
#define	False   0
#define	IsEven(x)   (((x)&1)==0)
#define	IsOdd(x)   (((x)&1)!=0)
#define	BothEven(x, y)   IsEven((x)|(y))
#define	IsPrime(x)   (!IsEven((x))&&IsOddPrime((x)))
#define	HiPart(x)   (x>>16)
#define	LoPart(x)   ((x)&0xffff)
#define	MAXFACT   10
#define	MAXPRIMES   256
Functions
static unsigned int	isqrt (unsigned int val)
static int	IsOddPrime (unsigned int x)
static int	RelativelyPrime (unsigned int x, unsigned int y)
void	DoubleAdd (DoubleType *, unsigned int)
void	DoubleMultiply (unsigned int, unsigned int, DoubleType *)
static int	LeadingZeros (unsigned int x)
unsigned int	DoubleModulus (DoubleType *, unsigned int)
static int	DeterminePotency (unsigned int m, unsigned int a)
static int	DetermineFactors (unsigned int x, unsigned int *factors)
static unsigned int	DetermineIncrement (unsigned int m)
int	DetermineSequence (unsigned int m, unsigned int *pm, unsigned int *pa, unsigned int *pc)
void	GenerateSequence (unsigned int p, unsigned int m, unsigned int a, unsigned int c)
Variables
static int	primes [MAXPRIMES]

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Detailed Description

Pseudo random number generator.

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Define Documentation

#define True   1

Referenced by OpenBabel::DetermineSequence(), and OpenBabel::IsOddPrime().

#define False   0

Referenced by OpenBabel::DetermineSequence(), OpenBabel::IsOddPrime(), and OpenBabel::RelativelyPrime().

#define IsEven

(

x

)

(((x)&1)==0)

Referenced by OpenBabel::RelativelyPrime().

#define IsOdd

(

x

)

(((x)&1)!=0)

#define BothEven	(	x,
		y		)	IsEven((x)|(y))

Referenced by OpenBabel::RelativelyPrime().

#define IsPrime

(

x

)

(!IsEven((x))&&IsOddPrime((x)))

#define HiPart

(

x

)

(x>>16)

Referenced by OpenBabel::DoubleModulus(), and OpenBabel::DoubleMultiply().

#define LoPart

(

x

)

((x)&0xffff)

Referenced by OpenBabel::DoubleModulus(), and OpenBabel::DoubleMultiply().

#define MAXFACT   10

Referenced by OpenBabel::DetermineSequence().

#define MAXPRIMES   256

Referenced by OpenBabel::DetermineFactors(), and OpenBabel::IsOddPrime().