Implement Rng.gen_ratio() using Rng.gen_bool()

Author: sicking

src/lib.rs

@@ -564,9 +564,7 @@ pub trait Rng: RngCore {
     ///
     #[inline]
     fn gen_ratio(&mut self, numerator: u32, denominator: u32) -> bool {
-        assert!(numerator <= denominator, "gen_ratio called with numerator > denominator");
-        assert!(denominator > 0, "gen_ratio called with denominator == 0");
-        (numerator as f64 / denominator as f64) > self.gen()
+        self.gen_bool(numerator as f64 / denominator as f64)
     }
 
     /// Return a random element from `values`.