rand() Question.

[bsodmike]

Hiyas,

Got a question about the rand() function. If I want to generate a random number between a range of say 0 - x how would this function look like?

#include <stdlib.h>
#include <stdio.h>
 
#define SEED 12345

main() 
{

    float x;
    int n;

        srand(SEED);
            x = rand() / RAND_MAX;
            n = 1 + (int) (6 * x);

      printf("x = %d", n);
}

I'm using the gcc/g++ compiler but it doesn't seem to know what RAND_MAX is (which I believe is the largest random number possible). Of course I will include time.h and based the seed on time, i.e. srand(time);

Update: Just found the solution I believe - http://www.cprogramming.com/tutorial/random.html

Cheers, Mike

[Spud1]

many ways to do it , although ofc you cannot get a truely random number out of a computer That link should be more than enough for most needs though, i've added it to my bookmarks ty

[bsodmike]

Yea pseudorandom is all I'm after

Cheers.