rand_distr: work around tan func issue

rust-random · Sep 15, 2019 · c30e840 · c30e840
1 parent 802ba8f
commit c30e840
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/rand_distr/src/cauchy.rs b/rand_distr/src/cauchy.rs
@@ -130,8 +130,11 @@ mod test {
             assert_eq!(buf, expected);
         }
 
+        // Warning: in a few cases, results vary slightly between different
+        // platforms, presumably due to differences in precision of system impls
+        // of the tan function. We work around this by avoiding these values.
         test_samples(100f64, 10.0, &[77.93369152808678, 90.1606912098641,
                 125.31516221323625, 86.10217834773925]);
-        test_samples(20f32, 10.0, &[27.175842, -2.0663052, 11.013268, 10.160688]);
+        test_samples(10f32, 9.0, &[16.458258, -9.859674, 1.9119415, 1.14462]);
     }
 }