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-rw-r--r--src/libcollections/string.rs4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/libcollections/string.rs b/src/libcollections/string.rs
index e6f438ecded..c965aedbc5d 100644
--- a/src/libcollections/string.rs
+++ b/src/libcollections/string.rs
@@ -849,6 +849,7 @@ impl<'a> Add<&'a str> for String {
     }
 }
 
+#[stable]
 impl ops::Index<ops::Range<uint>> for String {
     type Output = str;
     #[inline]
@@ -856,6 +857,7 @@ impl ops::Index<ops::Range<uint>> for String {
         &self[][*index]
     }
 }
+#[stable]
 impl ops::Index<ops::RangeTo<uint>> for String {
     type Output = str;
     #[inline]
@@ -863,6 +865,7 @@ impl ops::Index<ops::RangeTo<uint>> for String {
         &self[][*index]
     }
 }
+#[stable]
 impl ops::Index<ops::RangeFrom<uint>> for String {
     type Output = str;
     #[inline]
@@ -870,6 +873,7 @@ impl ops::Index<ops::RangeFrom<uint>> for String {
         &self[][*index]
     }
 }
+#[stable]
 impl ops::Index<ops::FullRange> for String {
     type Output = str;
     #[inline]