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-rw-r--r--src/libstd/f64.rs3
1 files changed, 1 insertions, 2 deletions
diff --git a/src/libstd/f64.rs b/src/libstd/f64.rs
index e679a7d2e8c..3c3a35573ad 100644
--- a/src/libstd/f64.rs
+++ b/src/libstd/f64.rs
@@ -180,7 +180,6 @@ impl f64 {
     /// # Examples
     ///
     /// ```
-    /// #![feature(copysign)]
     /// use std::f64;
     ///
     /// let f = 3.5_f64;
@@ -194,7 +193,7 @@ impl f64 {
     /// ```
     #[inline]
     #[must_use]
-    #[unstable(feature="copysign", issue="55169")]
+    #[stable(feature = "copysign", since = "1.35.0")]
     pub fn copysign(self, y: f64) -> f64 {
         unsafe { intrinsics::copysignf64(self, y) }
     }