[Webinar] Streamline your web hosting managementRegister Today

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 174
  • Last Modified:

Random Number Generator (>1000/sec)

Hi all,

I need to generate a lot (>1000/sec) of random numbers in a short space of time.  The random number generator I've used in the pased (see below) uses time as the seed.  This works fine if you are generating less then one per sec but I need more than that. When I use the function I get the same 3 numbers for a second and once the clocks second changes I get another 3 numbers.  I'm using Borland C++.


#include <time.h>
int rand_num;
int Get_rand()
{
   time_t t;
   srand((unsigned) time(&t));
   do
   {
       rand_num = rand() % 11;
   }
   while (rand_num < 1)
return rand_num;
}


Thanks in advance.

Phil
0
philipw
Asked:
philipw
  • 2
1 Solution
 
laeuchliCommented:
You only have to seed it once with time, after that you can continue to call rand and get a random number.
0
 
philipwAuthor Commented:
Thanks for your quick help

I guess I should have known that!
0
 
laeuchliCommented:
I had the problem to :-). Glad I could help.
0

Featured Post

Receive 1:1 tech help

Solve your biggest tech problems alongside global tech experts with 1:1 help.

  • 2
Tackle projects and never again get stuck behind a technical roadblock.
Join Now