Thread: n00b rand question

I'm a C programming class, and I have an assignment due tonight at midnight, but I can't get my rand() to work. I know its a little stupid thing, but it baffles me.

Here is are the parameters given to us by the professor:

I need a random number between 0 and 63.
Using a defined RANGE value (set at 64) and using the modulus (%) operator, ensure that the value is different every time the program is started and can include 0 and 63 as values.
Also, you must use the srand(time(null)) seed function.

all in all, I need something that doesn't require making a new .h file or using two void satements. and the random number has to be set to x.

I pray someone can help me fast.
thanks all.

It's all in the FAQ andyhunter posted. If you still can't get it to work, then I'm sorry to say that there is no hope for you.

Code:

#include <time.h>
#include <stdlib.h>

int
main(int argc, char **argv)  {

       int random = 0;
      /* initialize the random starting pointer */
     srand(time(NULL));

      ... statements here  ...

     /* generate a random number */
      random = rand()%64;
      ...   statements ...
      return 0;
}

There, that should work. All it does is modulus the output from rand() by 64, there fore making the number only be between 0 and 63 (including those)

hope youmeant tonight at midnight...