rand.c File Reference

#include <stdlib.h>

Include dependency graph for rand.c:

Functions
static int	do_rand (unsigned long *ctx)
int	rand_r (unsigned int *ctx)
int	rand ()
	Returns a pseudo-random integer value between ​0​ and. More...
void	srand (unsigned int seed)

Variables
static unsigned long	next = 1

Function Documentation

do_rand()

static int do_rand ( unsigned long *  ctx )

static

References RAND_MAX.

Referenced by rand(), and rand_r().

rand()

int rand

(

void

)

Returns a pseudo-random integer value between ​0​ and.

See also

RAND_MAX (0 and

RAND_MAX included).

Returns a pseudo-random integer value between ​0​ and

See also

RAND_MAX (0 and

RAND_MAX included).

srand() seeds the pseudo-random number generator used by rand. If rand is used before any calls to

srand, rand behaves as if it was seeded with

srand. Each time rand is seeded with srand, it must produce the same sequence of values.

rand is not guaranteed to be thread-safe.

Returns

Pseudo-random integer value between ​0​ and RAND_MAX, inclusive.

Referenced by main().

Here is the caller graph for this function:

rand_r()

int rand_r

(

unsigned int *

ctx

)

srand()

void srand

(

unsigned int

seed

)

References next, and seed.

Variable Documentation

next

unsigned long next = 1

static

Referenced by list_insert(), list_join_nodes(), rand(), and srand().