Add #![feature] attributes to doctests

3 files changed, 20 insertions, 10 deletions

diff --git a/src/libunicode/char.rs b/src/libunicode/char.rs
index e0f013cbc80..db5a25b9bed 100644
--- a/src/libunicode/char.rs
+++ b/src/libunicode/char.rs
@@ -209,6 +209,7 @@ pub trait CharExt {
     /// In both of these examples, 'ß' takes two bytes to encode.
     ///
     /// ```
+    /// # #![feature(unicode)]
     /// let mut b = [0; 2];
     ///
     /// let result = 'ß'.encode_utf8(&mut b);
@@ -219,6 +220,7 @@ pub trait CharExt {
     /// A buffer that's too small:
     ///
     /// ```
+    /// # #![feature(unicode)]
     /// let mut b = [0; 1];
     ///
     /// let result = 'ß'.encode_utf8(&mut b);
@@ -241,6 +243,7 @@ pub trait CharExt {
     /// In both of these examples, 'ß' takes one `u16` to encode.
     ///
     /// ```
+    /// # #![feature(unicode)]
     /// let mut b = [0; 1];
     ///
     /// let result = 'ß'.encode_utf16(&mut b);
@@ -251,6 +254,7 @@ pub trait CharExt {
     /// A buffer that's too small:
     ///
     /// ```
+    /// # #![feature(unicode)]
     /// let mut b = [0; 0];
     ///
     /// let result = 'ß'.encode_utf8(&mut b);
diff --git a/src/libunicode/lib.rs b/src/libunicode/lib.rs
index a09c0cb3bd6..6879fa7b3ba 100644
--- a/src/libunicode/lib.rs
+++ b/src/libunicode/lib.rs
@@ -35,6 +35,7 @@
 #![feature(no_std)]
 #![no_std]
 #![feature(core)]
+#![doc(test(no_crate_inject))]
 
 extern crate core;
 
diff --git a/src/libunicode/u_str.rs b/src/libunicode/u_str.rs
index 485065685f1..de3a593143e 100644
--- a/src/libunicode/u_str.rs
+++ b/src/libunicode/u_str.rs
@@ -481,19 +481,24 @@ impl<'a> Iterator for Utf16Items<'a> {
 /// # Examples
 ///
 /// ```
+/// # #![feature(unicode)]
+/// extern crate unicode;
+///
 /// use unicode::str::Utf16Item::{ScalarValue, LoneSurrogate};
 ///
-/// // 𝄞mus<invalid>ic<invalid>
-/// let v = [0xD834, 0xDD1E, 0x006d, 0x0075,
-///          0x0073, 0xDD1E, 0x0069, 0x0063,
-///          0xD834];
+/// fn main() {
+///     // 𝄞mus<invalid>ic<invalid>
+///     let v = [0xD834, 0xDD1E, 0x006d, 0x0075,
+///              0x0073, 0xDD1E, 0x0069, 0x0063,
+///              0xD834];
 ///
-/// assert_eq!(unicode::str::utf16_items(&v).collect::<Vec<_>>(),
-///            vec![ScalarValue('𝄞'),
-///                 ScalarValue('m'), ScalarValue('u'), ScalarValue('s'),
-///                 LoneSurrogate(0xDD1E),
-///                 ScalarValue('i'), ScalarValue('c'),
-///                 LoneSurrogate(0xD834)]);
+///     assert_eq!(unicode::str::utf16_items(&v).collect::<Vec<_>>(),
+///                vec![ScalarValue('𝄞'),
+///                     ScalarValue('m'), ScalarValue('u'), ScalarValue('s'),
+///                     LoneSurrogate(0xDD1E),
+///                     ScalarValue('i'), ScalarValue('c'),
+///                     LoneSurrogate(0xD834)]);
+/// }
 /// ```
 pub fn utf16_items<'a>(v: &'a [u16]) -> Utf16Items<'a> {
     Utf16Items { iter : v.iter() }