| extern crate rand; |
| |
| mod _common; |
| |
| use _common::{validate, SEED}; |
| use rand::distributions::{Range, Sample}; |
| use rand::{IsaacRng, Rng, SeedableRng}; |
| use std::char; |
| |
| fn main() { |
| let mut rnd = IsaacRng::from_seed(&SEED); |
| let mut range = Range::new(0, 10); |
| for _ in 0..5_000_000u64 { |
| let num_digits = rnd.gen_range(100, 400); |
| let digits = gen_digits(num_digits, &mut range, &mut rnd); |
| validate(&digits); |
| } |
| } |
| |
| fn gen_digits<R: Rng>(n: u32, range: &mut Range<u32>, rnd: &mut R) -> String { |
| let mut s = String::new(); |
| for _ in 0..n { |
| let digit = char::from_digit(range.sample(rnd), 10).unwrap(); |
| s.push(digit); |
| } |
| s |
| } |