randomkit.c File Reference

#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <limits.h>
#include <math.h>
#include <neatogen/randomkit.h>

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Macros
#define	N   624
#define	M   397
#define	MATRIX_A   0x9908b0dfUL
#define	UPPER_MASK   0x80000000UL
#define	LOWER_MASK   0x7fffffffUL

Functions
void	rk_seed (unsigned long seed, rk_state *state)
unsigned long	rk_random (rk_state *state)
static unsigned long	rk_ulong (rk_state *state)
	returns a random unsigned long between 0 and ULONG_MAX inclusive
unsigned long	rk_interval (unsigned long max, rk_state *state)

Macro Definition Documentation

LOWER_MASK

#define LOWER_MASK   0x7fffffffUL

Definition at line 93 of file randomkit.c.

M

#define M   397

Definition at line 90 of file randomkit.c.

MATRIX_A

#define MATRIX_A   0x9908b0dfUL

Definition at line 91 of file randomkit.c.

N

#define N   624

Definition at line 89 of file randomkit.c.

UPPER_MASK

#define UPPER_MASK   0x80000000UL

Definition at line 92 of file randomkit.c.

Function Documentation

rk_interval()

unsigned long rk_interval	(	unsigned long	max,
		rk_state *	state
	)

Definition at line 138 of file randomkit.c.

References rk_random(), and rk_ulong().

Referenced by fisheryates_shuffle().

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rk_random()

unsigned long rk_random

(

rk_state *

state

)

Definition at line 97 of file randomkit.c.

References rk_state_::key, LOWER_MASK, M, MATRIX_A, N, rk_state_::pos, RK_STATE_LEN, and UPPER_MASK.

Referenced by rk_interval(), and rk_ulong().

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rk_seed()

void rk_seed	(	unsigned long	seed,
		rk_state *	state
	)

Definition at line 75 of file randomkit.c.

References rk_state_::key, rk_state_::pos, RK_STATE_LEN, and seed.

Referenced by sgd().

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rk_ulong()

static unsigned long rk_ulong ( rk_state *  state )

static

Definition at line 129 of file randomkit.c.

References rk_random().

Referenced by rk_interval().

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