I have a piece of code like
let mut rng = rand::thread_rng()
let ans = Vec<f32>::new();
ans.push(rng.gen());
ans
Now, unfortunately, across multiple runs, the vector is returning the same list of random numbers (as if it's using the same seed). How do I get it to use the current time (or some os randomness) as the initial seed?
I can't reproduce the problem on playground
by default thread_rng
will initialize it self from the OS and will periodically reseed it self, so this shouldn't be an issue.
docs for thread_rng
If the problem persists, then you can file an issue on rand's github here
Thank you for the rust playground example.
Sorry for the false alarm. crate rand
is also generating different random numbers across different runs for me. The bug was elsewhere.