auto merge of #7980 : graydon/rust/misc-benchmarks, r=catamorphism

Some machinery for enabling #[bench] benchmarks in std and some examples showing how to write them.

1 files changed, 24 insertions, 0 deletions

diff --git a/src/libstd/num/strconv.rs b/src/libstd/num/strconv.rs
index 8e7f49464ff..722af828d5c 100644
--- a/src/libstd/num/strconv.rs
+++ b/src/libstd/num/strconv.rs
@@ -703,3 +703,27 @@ mod test {
         assert_eq!(n, None);
     }
 }
+
+#[cfg(test)]
+mod bench {
+    use extra::test::BenchHarness;
+    use rand::{XorShiftRng,RngUtil};
+    use uint;
+    use float;
+
+    #[bench]
+    fn uint_to_str_rand(bh: &mut BenchHarness) {
+        let mut rng = XorShiftRng::new();
+        do bh.iter {
+            uint::to_str(rng.gen());
+        }
+    }
+
+    #[bench]
+    fn float_to_str_rand(bh: &mut BenchHarness) {
+        let mut rng = XorShiftRng::new();
+        do bh.iter {
+            float::to_str(rng.gen());
+        }
+    }
+}
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