source: trunk/instant_messenger/socket/BKP_20071105/BKP_20071026/BKP_20071019/BKP_20071018/BKP_20071009/BKP_20071008/BKP/BKP/rand.c @ 151

#include <stdio.h>
#include <stdlib.h>
/*

#define MAX 10000

int main(void)
{
        int i = (int)NULL;
        int j =i;
        long int vet[MAX];

        for ( i = 0; i < MAX; ++i )
        {
                vet[i] = rand();
                for ( j = 0; j < i; ++j )
                        if ( vet[i] == vet[j] )
                                printf("[%d]%d - [%d]%d\n", i, vet[i], j, vet[j]);
        }
        printf("rand_max: %d\n", RAND_MAX);
        printf("time: %d\n", time(NULL));
        printf("rand: %d\n", rand(1));
}
*/

main(int ac, char **av)
{
        double x;
        unsigned seed;

        if (ac > 0) {
                sscanf(microtime,"%u", &seed);
                srand(seed);
        }

        x = rand()/(RAND_MAX+1.0);

        printf("%g\n",x);
}