---

yaml
---
r: 22572
b: refs/heads/master
c: db34b5a
h: refs/heads/master
v: v3

Author: jld

[refs]

@@ -1,5 +1,5 @@
 ---
-refs/heads/master: 0e42004babc7b965a10056084a8ae76c72140a44
+refs/heads/master: db34b5acd150d114f392c907fa28f92a5227d3db
 refs/heads/snap-stage1: e33de59e47c5076a89eadeb38f4934f58a3618a6
 refs/heads/snap-stage3: cd6f24f9d14ac90d167386a56e7a6ac1f0318195
 refs/heads/try: ffbe0e0e00374358b789b0037bcb3a577cd218be

trunk/src/libcore/rand.rs

@@ -94,22 +94,22 @@ impl extensions for rng {
         (self.next() as u64 << 32) | self.next() as u64
     }
 
-    /// Return a random float
+    /// Return a random float in the interval [0,1]
     fn gen_float() -> float {
         self.gen_f64() as float
     }
 
-    /// Return a random f32
+    /// Return a random f32 in the interval [0,1]
     fn gen_f32() -> f32 {
         self.gen_f64() as f32
     }
 
-    /// Return a random f64
+    /// Return a random f64 in the interval [0,1]
     fn gen_f64() -> f64 {
         let u1 = self.next() as f64;
         let u2 = self.next() as f64;
         let u3 = self.next() as f64;
-        let scale = u32::max_value as f64;
+        const scale : f64 = (u32::max_value as f64) + 1.0f64;
         ret ((u1 / scale + u2) / scale + u3) / scale;
     }