From bc7a2d72a3fea324fa432de9b6ce6073302d3d8c Mon Sep 17 00:00:00 2001
From: Huon Wilson <dbau.pp+github@gmail.com>
Date: Tue, 25 Mar 2014 16:13:11 +1100
Subject: rand: bubble up IO messages futher.

The various ...Rng::new() methods can hit IO errors from the OSRng they use,
and it seems sensible to expose them at a higher level. Unfortunately, writing
e.g. `StdRng::new().unwrap()` gives a much poorer error message than if it
failed internally, but this is a problem with all `IoResult`s.
---
 src/libstd/fmt/num.rs | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

(limited to 'src/libstd/fmt')

diff --git a/src/libstd/fmt/num.rs b/src/libstd/fmt/num.rs
index 4b35a7596c9..85fffc5545a 100644
--- a/src/libstd/fmt/num.rs
+++ b/src/libstd/fmt/num.rs
@@ -400,31 +400,31 @@ mod bench {
 
         #[bench]
         fn format_bin(bh: &mut BenchHarness) {
-            let mut rng = XorShiftRng::new();
+            let mut rng = XorShiftRng::new().unwrap();
             bh.iter(|| { format!("{:t}", rng.gen::<uint>()); })
         }
 
         #[bench]
         fn format_oct(bh: &mut BenchHarness) {
-            let mut rng = XorShiftRng::new();
+            let mut rng = XorShiftRng::new().unwrap();
             bh.iter(|| { format!("{:o}", rng.gen::<uint>()); })
         }
 
         #[bench]
         fn format_dec(bh: &mut BenchHarness) {
-            let mut rng = XorShiftRng::new();
+            let mut rng = XorShiftRng::new().unwrap();
             bh.iter(|| { format!("{:u}", rng.gen::<uint>()); })
         }
 
         #[bench]
         fn format_hex(bh: &mut BenchHarness) {
-            let mut rng = XorShiftRng::new();
+            let mut rng = XorShiftRng::new().unwrap();
             bh.iter(|| { format!("{:x}", rng.gen::<uint>()); })
         }
 
         #[bench]
         fn format_base_36(bh: &mut BenchHarness) {
-            let mut rng = XorShiftRng::new();
+            let mut rng = XorShiftRng::new().unwrap();
             bh.iter(|| { format!("{}", radix(rng.gen::<uint>(), 36)); })
         }
     }
@@ -436,31 +436,31 @@ mod bench {
 
         #[bench]
         fn format_bin(bh: &mut BenchHarness) {
-            let mut rng = XorShiftRng::new();
+            let mut rng = XorShiftRng::new().unwrap();
             bh.iter(|| { format!("{:t}", rng.gen::<int>()); })
         }
 
         #[bench]
         fn format_oct(bh: &mut BenchHarness) {
-            let mut rng = XorShiftRng::new();
+            let mut rng = XorShiftRng::new().unwrap();
             bh.iter(|| { format!("{:o}", rng.gen::<int>()); })
         }
 
         #[bench]
         fn format_dec(bh: &mut BenchHarness) {
-            let mut rng = XorShiftRng::new();
+            let mut rng = XorShiftRng::new().unwrap();
             bh.iter(|| { format!("{:d}", rng.gen::<int>()); })
         }
 
         #[bench]
         fn format_hex(bh: &mut BenchHarness) {
-            let mut rng = XorShiftRng::new();
+            let mut rng = XorShiftRng::new().unwrap();
             bh.iter(|| { format!("{:x}", rng.gen::<int>()); })
         }
 
         #[bench]
         fn format_base_36(bh: &mut BenchHarness) {
-            let mut rng = XorShiftRng::new();
+            let mut rng = XorShiftRng::new().unwrap();
             bh.iter(|| { format!("{}", radix(rng.gen::<int>(), 36)); })
         }
     }
-- 
cgit 1.4.1-3-g733a5