rand1.c File Reference

#include <stdlib.h>
#include <grass/gis.h>
#include <grass/gmath.h>

Include dependency graph for rand1.c:

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Functions
float	G_math_rand (void)
void	G_math_srand (int seed)
	Seed the pseudo-random number generator. More...
int	G_math_srand_auto (void)
	Seed the pseudo-random number generator from the time and PID. More...

Function Documentation

G_math_rand()

float G_math_rand

(

void

)

Definition at line 17 of file rand1.c.

References G_drand48().

Referenced by G_math_rand_gauss().

G_math_srand()

void G_math_srand

(

int

seed

)

Seed the pseudo-random number generator.

Parameters

seedval

32-bit integer used to seed the PRNG

Definition at line 28 of file rand1.c.

References G_srand48().

G_math_srand_auto()

int G_math_srand_auto

(

void

)

Seed the pseudo-random number generator from the time and PID.

Returns

generated seed value passed to G_srand48()

Definition at line 39 of file rand1.c.

References G_srand48_auto().