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-rw-r--r--library/alloc/src/lib.rs1
-rw-r--r--library/core/src/num/mod.rs3
-rw-r--r--library/core/src/num/saturating.rs188
-rw-r--r--library/std/src/lib.rs1
-rw-r--r--library/std/src/num.rs2
-rw-r--r--src/tools/clippy/tests/ui/arithmetic_side_effects.rs2
6 files changed, 94 insertions, 103 deletions
diff --git a/library/alloc/src/lib.rs b/library/alloc/src/lib.rs
index e43b6ac4039..f435f503fc1 100644
--- a/library/alloc/src/lib.rs
+++ b/library/alloc/src/lib.rs
@@ -144,7 +144,6 @@
 #![feature(ptr_metadata)]
 #![feature(ptr_sub_ptr)]
 #![feature(receiver_trait)]
-#![feature(saturating_int_impl)]
 #![feature(set_ptr_value)]
 #![feature(sized_type_properties)]
 #![feature(slice_from_ptr_range)]
diff --git a/library/core/src/num/mod.rs b/library/core/src/num/mod.rs
index 95dcaf5dd73..4232319fecb 100644
--- a/library/core/src/num/mod.rs
+++ b/library/core/src/num/mod.rs
@@ -44,11 +44,10 @@ mod uint_macros; // import uint_impl!
 mod error;
 mod int_log10;
 mod nonzero;
-#[unstable(feature = "saturating_int_impl", issue = "87920")]
 mod saturating;
 mod wrapping;
 
-#[unstable(feature = "saturating_int_impl", issue = "87920")]
+#[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
 pub use saturating::Saturating;
 #[stable(feature = "rust1", since = "1.0.0")]
 pub use wrapping::Wrapping;
diff --git a/library/core/src/num/saturating.rs b/library/core/src/num/saturating.rs
index e237f39d0eb..5757e7498ad 100644
--- a/library/core/src/num/saturating.rs
+++ b/library/core/src/num/saturating.rs
@@ -24,7 +24,6 @@ use crate::ops::{Sub, SubAssign};
 /// # Examples
 ///
 /// ```
-/// #![feature(saturating_int_impl)]
 /// use std::num::Saturating;
 ///
 /// let max = Saturating(u32::MAX);
@@ -32,48 +31,50 @@ use crate::ops::{Sub, SubAssign};
 ///
 /// assert_eq!(u32::MAX, (max + one).0);
 /// ```
-#[unstable(feature = "saturating_int_impl", issue = "87920")]
+#[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
 #[derive(PartialEq, Eq, PartialOrd, Ord, Clone, Copy, Default, Hash)]
 #[repr(transparent)]
 #[rustc_diagnostic_item = "Saturating"]
-pub struct Saturating<T>(#[unstable(feature = "saturating_int_impl", issue = "87920")] pub T);
+pub struct Saturating<T>(
+    #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] pub T,
+);
 
-#[unstable(feature = "saturating_int_impl", issue = "87920")]
+#[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
 impl<T: fmt::Debug> fmt::Debug for Saturating<T> {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         self.0.fmt(f)
     }
 }
 
-#[unstable(feature = "saturating_int_impl", issue = "87920")]
+#[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
 impl<T: fmt::Display> fmt::Display for Saturating<T> {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         self.0.fmt(f)
     }
 }
 
-#[unstable(feature = "saturating_int_impl", issue = "87920")]
+#[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
 impl<T: fmt::Binary> fmt::Binary for Saturating<T> {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         self.0.fmt(f)
     }
 }
 
-#[unstable(feature = "saturating_int_impl", issue = "87920")]
+#[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
 impl<T: fmt::Octal> fmt::Octal for Saturating<T> {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         self.0.fmt(f)
     }
 }
 
-#[unstable(feature = "saturating_int_impl", issue = "87920")]
+#[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
 impl<T: fmt::LowerHex> fmt::LowerHex for Saturating<T> {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         self.0.fmt(f)
     }
 }
 
-#[unstable(feature = "saturating_int_impl", issue = "87920")]
+#[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
 impl<T: fmt::UpperHex> fmt::UpperHex for Saturating<T> {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         self.0.fmt(f)
@@ -209,7 +210,7 @@ impl<T: fmt::UpperHex> fmt::UpperHex for Saturating<T> {
 // FIXME(30524): impl Op<T> for Saturating<T>, impl OpAssign<T> for Saturating<T>
 macro_rules! saturating_impl {
     ($($t:ty)*) => ($(
-        #[unstable(feature = "saturating_int_impl", issue = "87920")]
+        #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
         impl Add for Saturating<$t> {
             type Output = Saturating<$t>;
 
@@ -219,9 +220,9 @@ macro_rules! saturating_impl {
             }
         }
         forward_ref_binop! { impl Add, add for Saturating<$t>, Saturating<$t>,
-                #[unstable(feature = "saturating_int_impl", issue = "87920")] }
+                #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] }
 
-        #[unstable(feature = "saturating_int_impl", issue = "87920")]
+        #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
         impl AddAssign for Saturating<$t> {
             #[inline]
             fn add_assign(&mut self, other: Saturating<$t>) {
@@ -230,7 +231,7 @@ macro_rules! saturating_impl {
         }
         forward_ref_op_assign! { impl AddAssign, add_assign for Saturating<$t>, Saturating<$t> }
 
-        #[unstable(feature = "saturating_int_assign_impl", issue = "92354")]
+        #[stable(feature = "saturating_int_assign_impl", since = "CURRENT_RUSTC_VERSION")]
         impl AddAssign<$t> for Saturating<$t> {
             #[inline]
             fn add_assign(&mut self, other: $t) {
@@ -239,7 +240,7 @@ macro_rules! saturating_impl {
         }
         forward_ref_op_assign! { impl AddAssign, add_assign for Saturating<$t>, $t }
 
-        #[unstable(feature = "saturating_int_impl", issue = "87920")]
+        #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
         impl Sub for Saturating<$t> {
             type Output = Saturating<$t>;
 
@@ -249,9 +250,9 @@ macro_rules! saturating_impl {
             }
         }
         forward_ref_binop! { impl Sub, sub for Saturating<$t>, Saturating<$t>,
-                #[unstable(feature = "saturating_int_impl", issue = "87920")] }
+                #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] }
 
-        #[unstable(feature = "saturating_int_impl", issue = "87920")]
+        #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
         impl SubAssign for Saturating<$t> {
             #[inline]
             fn sub_assign(&mut self, other: Saturating<$t>) {
@@ -260,7 +261,7 @@ macro_rules! saturating_impl {
         }
         forward_ref_op_assign! { impl SubAssign, sub_assign for Saturating<$t>, Saturating<$t> }
 
-        #[unstable(feature = "saturating_int_assign_impl", issue = "92354")]
+        #[stable(feature = "saturating_int_assign_impl", since = "CURRENT_RUSTC_VERSION")]
         impl SubAssign<$t> for Saturating<$t> {
             #[inline]
             fn sub_assign(&mut self, other: $t) {
@@ -269,7 +270,7 @@ macro_rules! saturating_impl {
         }
         forward_ref_op_assign! { impl SubAssign, sub_assign for Saturating<$t>, $t }
 
-        #[unstable(feature = "saturating_int_impl", issue = "87920")]
+        #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
         impl Mul for Saturating<$t> {
             type Output = Saturating<$t>;
 
@@ -279,9 +280,9 @@ macro_rules! saturating_impl {
             }
         }
         forward_ref_binop! { impl Mul, mul for Saturating<$t>, Saturating<$t>,
-                #[unstable(feature = "saturating_int_impl", issue = "87920")] }
+                #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] }
 
-        #[unstable(feature = "saturating_int_impl", issue = "87920")]
+        #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
         impl MulAssign for Saturating<$t> {
             #[inline]
             fn mul_assign(&mut self, other: Saturating<$t>) {
@@ -290,7 +291,7 @@ macro_rules! saturating_impl {
         }
         forward_ref_op_assign! { impl MulAssign, mul_assign for Saturating<$t>, Saturating<$t> }
 
-        #[unstable(feature = "saturating_int_assign_impl", issue = "92354")]
+        #[stable(feature = "saturating_int_assign_impl", since = "CURRENT_RUSTC_VERSION")]
         impl MulAssign<$t> for Saturating<$t> {
             #[inline]
             fn mul_assign(&mut self, other: $t) {
@@ -304,7 +305,6 @@ macro_rules! saturating_impl {
         /// Basic usage:
         ///
         /// ```
-        /// #![feature(saturating_int_impl)]
         /// use std::num::Saturating;
         ///
         #[doc = concat!("assert_eq!(Saturating(2", stringify!($t), "), Saturating(5", stringify!($t), ") / Saturating(2));")]
@@ -313,12 +313,11 @@ macro_rules! saturating_impl {
         /// ```
         ///
         /// ```should_panic
-        /// #![feature(saturating_int_impl)]
         /// use std::num::Saturating;
         ///
         #[doc = concat!("let _ = Saturating(0", stringify!($t), ") / Saturating(0);")]
         /// ```
-        #[unstable(feature = "saturating_int_impl", issue = "87920")]
+        #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
         impl Div for Saturating<$t> {
             type Output = Saturating<$t>;
 
@@ -328,10 +327,10 @@ macro_rules! saturating_impl {
             }
         }
         forward_ref_binop! { impl Div, div for Saturating<$t>, Saturating<$t>,
-                #[unstable(feature = "saturating_int_impl", issue = "87920")] }
+                #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] }
 
 
-        #[unstable(feature = "saturating_int_impl", issue = "87920")]
+        #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
         impl DivAssign for Saturating<$t> {
             #[inline]
             fn div_assign(&mut self, other: Saturating<$t>) {
@@ -340,7 +339,7 @@ macro_rules! saturating_impl {
         }
         forward_ref_op_assign! { impl DivAssign, div_assign for Saturating<$t>, Saturating<$t> }
 
-        #[unstable(feature = "saturating_int_assign_impl", issue = "92354")]
+        #[stable(feature = "saturating_int_assign_impl", since = "CURRENT_RUSTC_VERSION")]
         impl DivAssign<$t> for Saturating<$t> {
             #[inline]
             fn div_assign(&mut self, other: $t) {
@@ -349,7 +348,7 @@ macro_rules! saturating_impl {
         }
         forward_ref_op_assign! { impl DivAssign, div_assign for Saturating<$t>, $t }
 
-        #[unstable(feature = "saturating_int_impl", issue = "87920")]
+        #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
         impl Rem for Saturating<$t> {
             type Output = Saturating<$t>;
 
@@ -359,9 +358,9 @@ macro_rules! saturating_impl {
             }
         }
         forward_ref_binop! { impl Rem, rem for Saturating<$t>, Saturating<$t>,
-                #[unstable(feature = "saturating_int_impl", issue = "87920")] }
+                #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] }
 
-        #[unstable(feature = "saturating_int_impl", issue = "87920")]
+        #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
         impl RemAssign for Saturating<$t> {
             #[inline]
             fn rem_assign(&mut self, other: Saturating<$t>) {
@@ -370,7 +369,7 @@ macro_rules! saturating_impl {
         }
         forward_ref_op_assign! { impl RemAssign, rem_assign for Saturating<$t>, Saturating<$t> }
 
-        #[unstable(feature = "saturating_int_assign_impl", issue = "92354")]
+        #[stable(feature = "saturating_int_assign_impl", since = "CURRENT_RUSTC_VERSION")]
         impl RemAssign<$t> for Saturating<$t> {
             #[inline]
             fn rem_assign(&mut self, other: $t) {
@@ -379,7 +378,7 @@ macro_rules! saturating_impl {
         }
         forward_ref_op_assign! { impl RemAssign, rem_assign for Saturating<$t>, $t }
 
-        #[unstable(feature = "saturating_int_impl", issue = "87920")]
+        #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
         impl Not for Saturating<$t> {
             type Output = Saturating<$t>;
 
@@ -389,9 +388,9 @@ macro_rules! saturating_impl {
             }
         }
         forward_ref_unop! { impl Not, not for Saturating<$t>,
-                #[unstable(feature = "saturating_int_impl", issue = "87920")] }
+                #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] }
 
-        #[unstable(feature = "saturating_int_impl", issue = "87920")]
+        #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
         impl BitXor for Saturating<$t> {
             type Output = Saturating<$t>;
 
@@ -401,9 +400,9 @@ macro_rules! saturating_impl {
             }
         }
         forward_ref_binop! { impl BitXor, bitxor for Saturating<$t>, Saturating<$t>,
-                #[unstable(feature = "saturating_int_impl", issue = "87920")] }
+                #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] }
 
-        #[unstable(feature = "saturating_int_impl", issue = "87920")]
+        #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
         impl BitXorAssign for Saturating<$t> {
             #[inline]
             fn bitxor_assign(&mut self, other: Saturating<$t>) {
@@ -412,7 +411,7 @@ macro_rules! saturating_impl {
         }
         forward_ref_op_assign! { impl BitXorAssign, bitxor_assign for Saturating<$t>, Saturating<$t> }
 
-        #[unstable(feature = "saturating_int_assign_impl", issue = "92354")]
+        #[stable(feature = "saturating_int_assign_impl", since = "CURRENT_RUSTC_VERSION")]
         impl BitXorAssign<$t> for Saturating<$t> {
             #[inline]
             fn bitxor_assign(&mut self, other: $t) {
@@ -421,7 +420,7 @@ macro_rules! saturating_impl {
         }
         forward_ref_op_assign! { impl BitXorAssign, bitxor_assign for Saturating<$t>, $t }
 
-        #[unstable(feature = "saturating_int_impl", issue = "87920")]
+        #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
         impl BitOr for Saturating<$t> {
             type Output = Saturating<$t>;
 
@@ -431,9 +430,9 @@ macro_rules! saturating_impl {
             }
         }
         forward_ref_binop! { impl BitOr, bitor for Saturating<$t>, Saturating<$t>,
-                #[unstable(feature = "saturating_int_impl", issue = "87920")] }
+                #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] }
 
-        #[unstable(feature = "saturating_int_impl", issue = "87920")]
+        #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
         impl BitOrAssign for Saturating<$t> {
             #[inline]
             fn bitor_assign(&mut self, other: Saturating<$t>) {
@@ -442,7 +441,7 @@ macro_rules! saturating_impl {
         }
         forward_ref_op_assign! { impl BitOrAssign, bitor_assign for Saturating<$t>, Saturating<$t> }
 
-        #[unstable(feature = "saturating_int_assign_impl", issue = "92354")]
+        #[stable(feature = "saturating_int_assign_impl", since = "CURRENT_RUSTC_VERSION")]
         impl BitOrAssign<$t> for Saturating<$t> {
             #[inline]
             fn bitor_assign(&mut self, other: $t) {
@@ -451,7 +450,7 @@ macro_rules! saturating_impl {
         }
         forward_ref_op_assign! { impl BitOrAssign, bitor_assign for Saturating<$t>, $t }
 
-        #[unstable(feature = "saturating_int_impl", issue = "87920")]
+        #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
         impl BitAnd for Saturating<$t> {
             type Output = Saturating<$t>;
 
@@ -461,9 +460,9 @@ macro_rules! saturating_impl {
             }
         }
         forward_ref_binop! { impl BitAnd, bitand for Saturating<$t>, Saturating<$t>,
-                #[unstable(feature = "saturating_int_impl", issue = "87920")] }
+                #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] }
 
-        #[unstable(feature = "saturating_int_impl", issue = "87920")]
+        #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
         impl BitAndAssign for Saturating<$t> {
             #[inline]
             fn bitand_assign(&mut self, other: Saturating<$t>) {
@@ -472,7 +471,7 @@ macro_rules! saturating_impl {
         }
         forward_ref_op_assign! { impl BitAndAssign, bitand_assign for Saturating<$t>, Saturating<$t> }
 
-        #[unstable(feature = "saturating_int_assign_impl", issue = "92354")]
+        #[stable(feature = "saturating_int_assign_impl", since = "CURRENT_RUSTC_VERSION")]
         impl BitAndAssign<$t> for Saturating<$t> {
             #[inline]
             fn bitand_assign(&mut self, other: $t) {
@@ -496,12 +495,11 @@ macro_rules! saturating_int_impl {
             /// Basic usage:
             ///
             /// ```
-            /// #![feature(saturating_int_impl)]
             /// use std::num::Saturating;
             ///
             #[doc = concat!("assert_eq!(<Saturating<", stringify!($t), ">>::MIN, Saturating(", stringify!($t), "::MIN));")]
             /// ```
-            #[unstable(feature = "saturating_int_impl", issue = "87920")]
+            #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
             pub const MIN: Self = Self(<$t>::MIN);
 
             /// Returns the largest value that can be represented by this integer type.
@@ -511,12 +509,11 @@ macro_rules! saturating_int_impl {
             /// Basic usage:
             ///
             /// ```
-            /// #![feature(saturating_int_impl)]
             /// use std::num::Saturating;
             ///
             #[doc = concat!("assert_eq!(<Saturating<", stringify!($t), ">>::MAX, Saturating(", stringify!($t), "::MAX));")]
             /// ```
-            #[unstable(feature = "saturating_int_impl", issue = "87920")]
+            #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
             pub const MAX: Self = Self(<$t>::MAX);
 
             /// Returns the size of this integer type in bits.
@@ -526,12 +523,11 @@ macro_rules! saturating_int_impl {
             /// Basic usage:
             ///
             /// ```
-            /// #![feature(saturating_int_impl)]
             /// use std::num::Saturating;
             ///
             #[doc = concat!("assert_eq!(<Saturating<", stringify!($t), ">>::BITS, ", stringify!($t), "::BITS);")]
             /// ```
-            #[unstable(feature = "saturating_int_impl", issue = "87920")]
+            #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
             pub const BITS: u32 = <$t>::BITS;
 
             /// Returns the number of ones in the binary representation of `self`.
@@ -541,7 +537,6 @@ macro_rules! saturating_int_impl {
             /// Basic usage:
             ///
             /// ```
-            /// #![feature(saturating_int_impl)]
             /// use std::num::Saturating;
             ///
             #[doc = concat!("let n = Saturating(0b01001100", stringify!($t), ");")]
@@ -553,7 +548,8 @@ macro_rules! saturating_int_impl {
             #[doc(alias = "popcnt")]
             #[must_use = "this returns the result of the operation, \
                           without modifying the original"]
-            #[unstable(feature = "saturating_int_impl", issue = "87920")]
+            #[rustc_const_stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
+            #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
             pub const fn count_ones(self) -> u32 {
                 self.0.count_ones()
             }
@@ -565,7 +561,6 @@ macro_rules! saturating_int_impl {
             /// Basic usage:
             ///
             /// ```
-            /// #![feature(saturating_int_impl)]
             /// use std::num::Saturating;
             ///
             #[doc = concat!("assert_eq!(Saturating(!0", stringify!($t), ").count_zeros(), 0);")]
@@ -573,7 +568,8 @@ macro_rules! saturating_int_impl {
             #[inline]
             #[must_use = "this returns the result of the operation, \
                           without modifying the original"]
-            #[unstable(feature = "saturating_int_impl", issue = "87920")]
+            #[rustc_const_stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
+            #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
             pub const fn count_zeros(self) -> u32 {
                 self.0.count_zeros()
             }
@@ -585,7 +581,6 @@ macro_rules! saturating_int_impl {
             /// Basic usage:
             ///
             /// ```
-            /// #![feature(saturating_int_impl)]
             /// use std::num::Saturating;
             ///
             #[doc = concat!("let n = Saturating(0b0101000", stringify!($t), ");")]
@@ -595,7 +590,8 @@ macro_rules! saturating_int_impl {
             #[inline]
             #[must_use = "this returns the result of the operation, \
                           without modifying the original"]
-            #[unstable(feature = "saturating_int_impl", issue = "87920")]
+            #[rustc_const_stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
+            #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
             pub const fn trailing_zeros(self) -> u32 {
                 self.0.trailing_zeros()
             }
@@ -612,7 +608,6 @@ macro_rules! saturating_int_impl {
             /// Basic usage:
             ///
             /// ```
-            /// #![feature(saturating_int_impl)]
             /// use std::num::Saturating;
             ///
             /// let n: Saturating<i64> = Saturating(0x0123456789ABCDEF);
@@ -623,7 +618,8 @@ macro_rules! saturating_int_impl {
             #[inline]
             #[must_use = "this returns the result of the operation, \
                           without modifying the original"]
-            #[unstable(feature = "saturating_int_impl", issue = "87920")]
+            #[rustc_const_stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
+            #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
             pub const fn rotate_left(self, n: u32) -> Self {
                 Saturating(self.0.rotate_left(n))
             }
@@ -640,7 +636,6 @@ macro_rules! saturating_int_impl {
             /// Basic usage:
             ///
             /// ```
-            /// #![feature(saturating_int_impl)]
             /// use std::num::Saturating;
             ///
             /// let n: Saturating<i64> = Saturating(0x0123456789ABCDEF);
@@ -651,7 +646,8 @@ macro_rules! saturating_int_impl {
             #[inline]
             #[must_use = "this returns the result of the operation, \
                           without modifying the original"]
-            #[unstable(feature = "saturating_int_impl", issue = "87920")]
+            #[rustc_const_stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
+            #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
             pub const fn rotate_right(self, n: u32) -> Self {
                 Saturating(self.0.rotate_right(n))
             }
@@ -663,7 +659,6 @@ macro_rules! saturating_int_impl {
             /// Basic usage:
             ///
             /// ```
-            /// #![feature(saturating_int_impl)]
             /// use std::num::Saturating;
             ///
             /// let n: Saturating<i16> = Saturating(0b0000000_01010101);
@@ -677,7 +672,8 @@ macro_rules! saturating_int_impl {
             #[inline]
             #[must_use = "this returns the result of the operation, \
                           without modifying the original"]
-            #[unstable(feature = "saturating_int_impl", issue = "87920")]
+            #[rustc_const_stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
+            #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
             pub const fn swap_bytes(self) -> Self {
                 Saturating(self.0.swap_bytes())
             }
@@ -692,7 +688,6 @@ macro_rules! saturating_int_impl {
             /// Basic usage:
             ///
             /// ```
-            /// #![feature(saturating_int_impl)]
             /// use std::num::Saturating;
             ///
             /// let n = Saturating(0b0000000_01010101i16);
@@ -704,8 +699,8 @@ macro_rules! saturating_int_impl {
             /// assert_eq!(m, Saturating(-22016));
             /// ```
             #[inline]
-            #[unstable(feature = "saturating_int_impl", issue = "87920")]
-            #[rustc_const_unstable(feature = "saturating_int_impl", issue = "87920")]
+            #[rustc_const_stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
+            #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
             #[must_use = "this returns the result of the operation, \
                           without modifying the original"]
             pub const fn reverse_bits(self) -> Self {
@@ -722,7 +717,6 @@ macro_rules! saturating_int_impl {
             /// Basic usage:
             ///
             /// ```
-            /// #![feature(saturating_int_impl)]
             /// use std::num::Saturating;
             ///
             #[doc = concat!("let n = Saturating(0x1A", stringify!($t), ");")]
@@ -735,7 +729,8 @@ macro_rules! saturating_int_impl {
             /// ```
             #[inline]
             #[must_use]
-            #[unstable(feature = "saturating_int_impl", issue = "87920")]
+            #[rustc_const_stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
+            #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
             pub const fn from_be(x: Self) -> Self {
                 Saturating(<$t>::from_be(x.0))
             }
@@ -750,7 +745,6 @@ macro_rules! saturating_int_impl {
             /// Basic usage:
             ///
             /// ```
-            /// #![feature(saturating_int_impl)]
             /// use std::num::Saturating;
             ///
             #[doc = concat!("let n = Saturating(0x1A", stringify!($t), ");")]
@@ -763,7 +757,8 @@ macro_rules! saturating_int_impl {
             /// ```
             #[inline]
             #[must_use]
-            #[unstable(feature = "saturating_int_impl", issue = "87920")]
+            #[rustc_const_stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
+            #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
             pub const fn from_le(x: Self) -> Self {
                 Saturating(<$t>::from_le(x.0))
             }
@@ -778,7 +773,6 @@ macro_rules! saturating_int_impl {
             /// Basic usage:
             ///
             /// ```
-            /// #![feature(saturating_int_impl)]
             /// use std::num::Saturating;
             ///
             #[doc = concat!("let n = Saturating(0x1A", stringify!($t), ");")]
@@ -790,7 +784,8 @@ macro_rules! saturating_int_impl {
             /// }
             /// ```
             #[inline]
-            #[unstable(feature = "saturating_int_impl", issue = "87920")]
+            #[rustc_const_stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
+            #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
             #[must_use = "this returns the result of the operation, \
                           without modifying the original"]
             pub const fn to_be(self) -> Self {
@@ -807,7 +802,6 @@ macro_rules! saturating_int_impl {
             /// Basic usage:
             ///
             /// ```
-            /// #![feature(saturating_int_impl)]
             /// use std::num::Saturating;
             ///
             #[doc = concat!("let n = Saturating(0x1A", stringify!($t), ");")]
@@ -819,7 +813,8 @@ macro_rules! saturating_int_impl {
             /// }
             /// ```
             #[inline]
-            #[unstable(feature = "saturating_int_impl", issue = "87920")]
+            #[rustc_const_stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
+            #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
             #[must_use = "this returns the result of the operation, \
                           without modifying the original"]
             pub const fn to_le(self) -> Self {
@@ -833,7 +828,6 @@ macro_rules! saturating_int_impl {
             /// Basic usage:
             ///
             /// ```
-            /// #![feature(saturating_int_impl)]
             /// use std::num::Saturating;
             ///
             #[doc = concat!("assert_eq!(Saturating(3", stringify!($t), ").pow(4), Saturating(81));")]
@@ -842,17 +836,17 @@ macro_rules! saturating_int_impl {
             /// Results that are too large are saturated:
             ///
             /// ```
-            /// #![feature(saturating_int_impl)]
             /// use std::num::Saturating;
             ///
             /// assert_eq!(Saturating(3i8).pow(5), Saturating(127));
             /// assert_eq!(Saturating(3i8).pow(6), Saturating(127));
             /// ```
             #[inline]
-            #[unstable(feature = "saturating_int_impl", issue = "87920")]
+            #[rustc_const_stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
+            #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
             #[must_use = "this returns the result of the operation, \
                           without modifying the original"]
-            pub fn pow(self, exp: u32) -> Self {
+            pub const fn pow(self, exp: u32) -> Self {
                 Saturating(self.0.saturating_pow(exp))
             }
         }
@@ -871,7 +865,6 @@ macro_rules! saturating_int_impl_signed {
             /// Basic usage:
             ///
             /// ```
-            /// #![feature(saturating_int_impl)]
             /// use std::num::Saturating;
             ///
             #[doc = concat!("let n = Saturating(", stringify!($t), "::MAX >> 2);")]
@@ -879,7 +872,8 @@ macro_rules! saturating_int_impl_signed {
             /// assert_eq!(n.leading_zeros(), 3);
             /// ```
             #[inline]
-            #[unstable(feature = "saturating_int_impl", issue = "87920")]
+            #[rustc_const_stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
+            #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
             #[must_use = "this returns the result of the operation, \
                           without modifying the original"]
             pub const fn leading_zeros(self) -> u32 {
@@ -894,7 +888,6 @@ macro_rules! saturating_int_impl_signed {
             /// Basic usage:
             ///
             /// ```
-            /// #![feature(saturating_int_impl)]
             /// use std::num::Saturating;
             ///
             #[doc = concat!("assert_eq!(Saturating(100", stringify!($t), ").abs(), Saturating(100));")]
@@ -904,10 +897,11 @@ macro_rules! saturating_int_impl_signed {
             #[doc = concat!("assert_eq!(Saturating(", stringify!($t), "::MIN).abs(), Saturating(", stringify!($t), "::MAX));")]
             /// ```
             #[inline]
-            #[unstable(feature = "saturating_int_impl", issue = "87920")]
+            #[rustc_const_stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
+            #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
             #[must_use = "this returns the result of the operation, \
                           without modifying the original"]
-            pub fn abs(self) -> Saturating<$t> {
+            pub const fn abs(self) -> Saturating<$t> {
                 Saturating(self.0.saturating_abs())
             }
 
@@ -922,7 +916,6 @@ macro_rules! saturating_int_impl_signed {
             /// Basic usage:
             ///
             /// ```
-            /// #![feature(saturating_int_impl)]
             /// use std::num::Saturating;
             ///
             #[doc = concat!("assert_eq!(Saturating(10", stringify!($t), ").signum(), Saturating(1));")]
@@ -930,10 +923,11 @@ macro_rules! saturating_int_impl_signed {
             #[doc = concat!("assert_eq!(Saturating(-10", stringify!($t), ").signum(), Saturating(-1));")]
             /// ```
             #[inline]
-            #[unstable(feature = "saturating_int_impl", issue = "87920")]
+            #[rustc_const_stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
+            #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
             #[must_use = "this returns the result of the operation, \
                           without modifying the original"]
-            pub fn signum(self) -> Saturating<$t> {
+            pub const fn signum(self) -> Saturating<$t> {
                 Saturating(self.0.signum())
             }
 
@@ -945,7 +939,6 @@ macro_rules! saturating_int_impl_signed {
             /// Basic usage:
             ///
             /// ```
-            /// #![feature(saturating_int_impl)]
             /// use std::num::Saturating;
             ///
             #[doc = concat!("assert!(Saturating(10", stringify!($t), ").is_positive());")]
@@ -953,7 +946,8 @@ macro_rules! saturating_int_impl_signed {
             /// ```
             #[must_use]
             #[inline]
-            #[unstable(feature = "saturating_int_impl", issue = "87920")]
+            #[rustc_const_stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
+            #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
             pub const fn is_positive(self) -> bool {
                 self.0.is_positive()
             }
@@ -966,7 +960,6 @@ macro_rules! saturating_int_impl_signed {
             /// Basic usage:
             ///
             /// ```
-            /// #![feature(saturating_int_impl)]
             /// use std::num::Saturating;
             ///
             #[doc = concat!("assert!(Saturating(-10", stringify!($t), ").is_negative());")]
@@ -974,13 +967,14 @@ macro_rules! saturating_int_impl_signed {
             /// ```
             #[must_use]
             #[inline]
-            #[unstable(feature = "saturating_int_impl", issue = "87920")]
+            #[rustc_const_stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
+            #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
             pub const fn is_negative(self) -> bool {
                 self.0.is_negative()
             }
         }
 
-        #[unstable(feature = "saturating_int_impl", issue = "87920")]
+        #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
         impl Neg for Saturating<$t> {
             type Output = Self;
             #[inline]
@@ -989,7 +983,7 @@ macro_rules! saturating_int_impl_signed {
             }
         }
         forward_ref_unop! { impl Neg, neg for Saturating<$t>,
-                #[unstable(feature = "saturating_int_impl", issue = "87920")] }
+                #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")] }
     )*)
 }
 
@@ -1005,7 +999,6 @@ macro_rules! saturating_int_impl_unsigned {
             /// Basic usage:
             ///
             /// ```
-            /// #![feature(saturating_int_impl)]
             /// use std::num::Saturating;
             ///
             #[doc = concat!("let n = Saturating(", stringify!($t), "::MAX >> 2);")]
@@ -1013,7 +1006,8 @@ macro_rules! saturating_int_impl_unsigned {
             /// assert_eq!(n.leading_zeros(), 2);
             /// ```
             #[inline]
-            #[unstable(feature = "saturating_int_impl", issue = "87920")]
+            #[rustc_const_stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
+            #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
             #[must_use = "this returns the result of the operation, \
                           without modifying the original"]
             pub const fn leading_zeros(self) -> u32 {
@@ -1027,7 +1021,6 @@ macro_rules! saturating_int_impl_unsigned {
             /// Basic usage:
             ///
             /// ```
-            /// #![feature(saturating_int_impl)]
             /// use std::num::Saturating;
             ///
             #[doc = concat!("assert!(Saturating(16", stringify!($t), ").is_power_of_two());")]
@@ -1035,8 +1028,9 @@ macro_rules! saturating_int_impl_unsigned {
             /// ```
             #[must_use]
             #[inline]
-            #[unstable(feature = "saturating_int_impl", issue = "87920")]
-            pub fn is_power_of_two(self) -> bool {
+            #[rustc_const_stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
+            #[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
+            pub const fn is_power_of_two(self) -> bool {
                 self.0.is_power_of_two()
             }
 
diff --git a/library/std/src/lib.rs b/library/std/src/lib.rs
index 1955ef815ff..776882399d7 100644
--- a/library/std/src/lib.rs
+++ b/library/std/src/lib.rs
@@ -351,7 +351,6 @@
 #![feature(get_many_mut)]
 #![feature(lazy_cell)]
 #![feature(log_syntax)]
-#![feature(saturating_int_impl)]
 #![feature(stdsimd)]
 #![feature(test)]
 #![feature(trace_macros)]
diff --git a/library/std/src/num.rs b/library/std/src/num.rs
index 46064bd2837..9e021b23fec 100644
--- a/library/std/src/num.rs
+++ b/library/std/src/num.rs
@@ -12,7 +12,7 @@ mod tests;
 #[cfg(test)]
 mod benches;
 
-#[unstable(feature = "saturating_int_impl", issue = "87920")]
+#[stable(feature = "saturating_int_impl", since = "CURRENT_RUSTC_VERSION")]
 pub use core::num::Saturating;
 #[stable(feature = "rust1", since = "1.0.0")]
 pub use core::num::Wrapping;
diff --git a/src/tools/clippy/tests/ui/arithmetic_side_effects.rs b/src/tools/clippy/tests/ui/arithmetic_side_effects.rs
index def30f5903d..b454c29aef4 100644
--- a/src/tools/clippy/tests/ui/arithmetic_side_effects.rs
+++ b/src/tools/clippy/tests/ui/arithmetic_side_effects.rs
@@ -10,7 +10,7 @@
     arithmetic_overflow,
     unconditional_panic
 )]
-#![feature(const_mut_refs, inline_const, saturating_int_impl)]
+#![feature(const_mut_refs, inline_const)]
 #![warn(clippy::arithmetic_side_effects)]
 
 extern crate proc_macro_derive;
generated by cgit-pink 1.4.1-3-g733a5 (git 2.37.1) at 2026-01-14 06:02:15 +0000