1 files changed, 50 insertions, 0 deletions
diff --git a/src/libstd/nil.rs b/src/libstd/nil.rs
new file mode 100644
index 00000000000..833bd3459ce
--- /dev/null
+++ b/src/libstd/nil.rs
@@ -0,0 +1,50 @@
+// Copyright 2012-2013 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+/*!
+
+Functions for the unit type.
+
+*/
+
+#[cfg(not(test))]
+use prelude::*;
+
+#[cfg(not(test))]
+impl Eq for () {
+    #[inline(always)]
+    fn eq(&self, _other: &()) -> bool { true }
+    #[inline(always)]
+    fn ne(&self, _other: &()) -> bool { false }
+}
+
+#[cfg(not(test))]
+impl Ord for () {
+    #[inline(always)]
+    fn lt(&self, _other: &()) -> bool { false }
+    #[inline(always)]
+    fn le(&self, _other: &()) -> bool { true }
+    #[inline(always)]
+    fn ge(&self, _other: &()) -> bool { true }
+    #[inline(always)]
+    fn gt(&self, _other: &()) -> bool { false }
+}
+
+#[cfg(not(test))]
+impl TotalOrd for () {
+    #[inline(always)]
+    fn cmp(&self, _other: &()) -> Ordering { Equal }
+}
+
+#[cfg(not(test))]
+impl TotalEq for () {
+    #[inline(always)]
+    fn equals(&self, _other: &()) -> bool { true }
+}