1 files changed, 25 insertions, 1 deletions
diff --git a/src/libstd/io/cursor.rs b/src/libstd/io/cursor.rs
index 9787cbb556b..f3e3fc81a5d 100644
--- a/src/libstd/io/cursor.rs
+++ b/src/libstd/io/cursor.rs
@@ -96,7 +96,7 @@ impl<T> Cursor<T> {
     /// ```
     #[stable(feature = "rust1", since = "1.0.0")]
     pub fn new(inner: T) -> Cursor<T> {
-        Cursor { pos: 0, inner: inner }
+        Cursor { pos: 0, inner }
     }
 
     /// Consumes this cursor, returning the underlying value.
@@ -266,6 +266,10 @@ where
         Ok(nread)
     }
 
+    fn is_read_vectored(&self) -> bool {
+        true
+    }
+
     fn read_exact(&mut self, buf: &mut [u8]) -> io::Result<()> {
         let n = buf.len();
         Read::read_exact(&mut self.fill_buf()?, buf)?;
@@ -373,6 +377,11 @@ impl Write for Cursor<&mut [u8]> {
     }
 
     #[inline]
+    fn is_write_vectored(&self) -> bool {
+        true
+    }
+
+    #[inline]
     fn flush(&mut self) -> io::Result<()> {
         Ok(())
     }
@@ -389,6 +398,11 @@ impl Write for Cursor<&mut Vec<u8>> {
     }
 
     #[inline]
+    fn is_write_vectored(&self) -> bool {
+        true
+    }
+
+    #[inline]
     fn flush(&mut self) -> io::Result<()> {
         Ok(())
     }
@@ -405,6 +419,11 @@ impl Write for Cursor<Vec<u8>> {
     }
 
     #[inline]
+    fn is_write_vectored(&self) -> bool {
+        true
+    }
+
+    #[inline]
     fn flush(&mut self) -> io::Result<()> {
         Ok(())
     }
@@ -423,6 +442,11 @@ impl Write for Cursor<Box<[u8]>> {
     }
 
     #[inline]
+    fn is_write_vectored(&self) -> bool {
+        true
+    }
+
+    #[inline]
     fn flush(&mut self) -> io::Result<()> {
         Ok(())
     }