---

pnkfelix · pnkfelix · commit 2442522aaba7 · 2015-03-03T12:10:57.000+01:00
yaml --- r: 188328 b: refs/heads/master c: f0404c3 h: refs/heads/master v: v3
diff --git a/[refs] b/[refs]
@@ -1,5 +1,5 @@
 ---
-refs/heads/master: 6189e99c8605578aae841be6fba9e27bfbad97fc
+refs/heads/master: f0404c39f272868c1dedc7cda7b0b6dffcb5713d
 refs/heads/snap-stage1: e33de59e47c5076a89eadeb38f4934f58a3618a6
 refs/heads/snap-stage3: 3a96d6a9818fe2affc98a187fb1065120458cee9
 refs/heads/try: 649d35e4d830b27806705dc5352c86ab6d6fd1a1
diff --git a/trunk/src/libcore/iter.rs b/trunk/src/libcore/iter.rs
@@ -1130,7 +1130,11 @@ impl<I> RandomAccessIterator for Rev<I> where I: DoubleEndedIterator + RandomAcc
     #[inline]
     fn idx(&mut self, index: usize) -> Option<<I as Iterator>::Item> {
         let amt = self.indexable();
-        self.iter.idx(amt - index - 1)
+        if amt > index {
+            self.iter.idx(amt - index - 1)
+        } else {
+            None
+        }
     }
 }
 

Original file line number	Diff line number	Diff line change
`@@ -1130,7 +1130,11 @@ impl<I> RandomAccessIterator for Rev<I> where I: DoubleEndedIterator + RandomAcc`
`1130`	`1130`	`#[inline]`
`1131`	`1131`	`fn idx(&mut self, index: usize) -> Option<<I as Iterator>::Item> {`
`1132`	`1132`	`let amt = self.indexable();`
`1133`		`- self.iter.idx(amt - index - 1)`
	`1133`	`+ if amt > index {`
	`1134`	`+ self.iter.idx(amt - index - 1)`
	`1135`	`+ } else {`
	`1136`	`+ None`
	`1137`	`+ }`
`1134`	`1138`	`}`
`1135`	`1139`	`}`
`1136`	`1140`