Function make_rng
pub fn make_rng<R: SeedableRng>() -> R
Construct and seed an RNG
This method yields a seeded RNG, using rng (ThreadRng) if enabled or
SysRng otherwise.
Examples
let mut rng: SmallRng = make_rng;
# let _ = next_u32;
Panics
If SysRng fails to obtain entropy from the OS. This is unlikely
outside of early boot or unusual system conditions.
Security
Refer to ThreadRng#Security.