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-rw-r--r--src/libstd/ffi/os_str.rs38
1 files changed, 38 insertions, 0 deletions
diff --git a/src/libstd/ffi/os_str.rs b/src/libstd/ffi/os_str.rs
index eb5ddecbd05..717d8527fe0 100644
--- a/src/libstd/ffi/os_str.rs
+++ b/src/libstd/ffi/os_str.rs
@@ -343,6 +343,44 @@ impl Ord for OsStr {
     fn cmp(&self, other: &OsStr) -> cmp::Ordering { self.bytes().cmp(other.bytes()) }
 }
 
+macro_rules! impl_cmp {
+    ($lhs:ty, $rhs: ty) => {
+        #[stable(feature = "cmp_os_str", since = "1.8.0")]
+        impl<'a, 'b> PartialEq<$rhs> for $lhs {
+            #[inline]
+            fn eq(&self, other: &$rhs) -> bool { <OsStr as PartialEq>::eq(self, other) }
+        }
+
+        #[stable(feature = "cmp_os_str", since = "1.8.0")]
+        impl<'a, 'b> PartialEq<$lhs> for $rhs {
+            #[inline]
+            fn eq(&self, other: &$lhs) -> bool { <OsStr as PartialEq>::eq(self, other) }
+        }
+
+        #[stable(feature = "cmp_os_str", since = "1.8.0")]
+        impl<'a, 'b> PartialOrd<$rhs> for $lhs {
+            #[inline]
+            fn partial_cmp(&self, other: &$rhs) -> Option<cmp::Ordering> {
+                <OsStr as PartialOrd>::partial_cmp(self, other)
+            }
+        }
+
+        #[stable(feature = "cmp_os_str", since = "1.8.0")]
+        impl<'a, 'b> PartialOrd<$lhs> for $rhs {
+            #[inline]
+            fn partial_cmp(&self, other: &$lhs) -> Option<cmp::Ordering> {
+                <OsStr as PartialOrd>::partial_cmp(self, other)
+            }
+        }
+    }
+}
+
+impl_cmp!(OsString, OsStr);
+impl_cmp!(OsString, &'a OsStr);
+impl_cmp!(Cow<'a, OsStr>, OsStr);
+impl_cmp!(Cow<'a, OsStr>, &'b OsStr);
+impl_cmp!(Cow<'a, OsStr>, OsString);
+
 #[stable(feature = "rust1", since = "1.0.0")]
 impl Hash for OsStr {
     #[inline]