Re: random numbers

[Sachin Garg <sachin@xxxxxxxxxxxx>]

Deepak Yadav wrote:
> 
> my program below generates same set of random numbers every time i run it. i
> am using linux 6.2 and its random daemon is ON. plz help
> 
> #include<stdio.h>
> #include<stdlib.h>
> 
> int main(int argc, char *argv[])
> {
>  char ch;
>  int random;
>  int i = 0;
>  srand(1);
>  while (i < 5 )
>  {
>    random = rand();
>    printf("\nrandom : %d\n",random);
>    i++;
>   }
> printf("\n\n");
> return 0;
> }

you are seeding the random number generator always with 1. The random
number generator generates Pseudo-Random Sequences. With the same seed,
the same sequence will be generated.

To get some random nos., u should seed the generator with something like
say f(timeofday).

the man page for random treats this *quite* exhaustively!

sachin