random number, how do I do it?

[Kenneth L Moore]

In article <5726 at ozdaltx.UUCP> root at ozdaltx.UUCP (root) writes:
>I am trying to write some code to generate a random number that would
>fall between 0 and 65,000.  

>------------------
>Thanks
>Scotty
>AIDS INFORMATION EXCHANGE BBS      (214) 247-2367/247-5609
>               "Education is the best weapon"
>     {ames,rutgers,texsun,smu}!attctc!ozdaltx!sysop 


Here is a program that will generate the numbers you need.

To change the range of responses just change the 65000 in 
the subroutine.

The ran48 is seeded with the time and a static multiplier is
used for when the calls are so close that system time has not
changed.

X-----X-----X-----X-----X-----X cut here X-----X-----X-----X-----X-----X-----X

#include <time.h>
main()
{

long timeofday;
int ind,test,num1;

timeofday = time(0);
printf("\n The time is: \n %s\n",ctime(&timeofday));
ind = 0;
while(ind++ != 15)
  {
  num1 = sixtyfive();
  printf(" The number is %d \n",num1);
  }
}

int sixtyfive()
{
  static int xxx;
  long seedval;
  double drand48(),x;
  int num;
  seedval = time(0)+(long)xxx;
  srand48(seedval);
  xxx = seedval*drand48();
  x = drand48();
  num = (int)(65000*x);
return(num);
}

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kenmoore at unix.cis.pitt.edu (Kenneth L. Moore)

(Sorry about the long sig but inews won't recognise my .signature...
even with "chmod 777 .signature". Tsk. Tsk.)