Rollup merge of rust-lang#76615 - GuillaumeGomez:missing-examples-binary-ops, r=jyn514

Add missing examples on binary core traits

r? @jyn514

Author: RalfJung

library/core/src/ops/bit.rs

@@ -36,6 +36,15 @@ pub trait Not {
     type Output;
 
     /// Performs the unary `!` operation.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// assert_eq!(!true, false);
+    /// assert_eq!(!false, true);
+    /// assert_eq!(!1u8, 254);
+    /// assert_eq!(!0u8, 255);
+    /// ```
     #[must_use]
     #[stable(feature = "rust1", since = "1.0.0")]
     fn not(self) -> Self::Output;
@@ -122,6 +131,15 @@ pub trait BitAnd<Rhs = Self> {
     type Output;
 
     /// Performs the `&` operation.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// assert_eq!(true & false, false);
+    /// assert_eq!(true & true, true);
+    /// assert_eq!(5u8 & 1u8, 1);
+    /// assert_eq!(5u8 & 2u8, 0);
+    /// ```
     #[must_use]
     #[stable(feature = "rust1", since = "1.0.0")]
     fn bitand(self, rhs: Rhs) -> Self::Output;
@@ -208,6 +226,15 @@ pub trait BitOr<Rhs = Self> {
     type Output;
 
     /// Performs the `|` operation.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// assert_eq!(true | false, true);
+    /// assert_eq!(false | false, false);
+    /// assert_eq!(5u8 | 1u8, 5);
+    /// assert_eq!(5u8 | 2u8, 7);
+    /// ```
     #[must_use]
     #[stable(feature = "rust1", since = "1.0.0")]
     fn bitor(self, rhs: Rhs) -> Self::Output;
@@ -297,6 +324,15 @@ pub trait BitXor<Rhs = Self> {
     type Output;
 
     /// Performs the `^` operation.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// assert_eq!(true ^ false, true);
+    /// assert_eq!(true ^ true, false);
+    /// assert_eq!(5u8 ^ 1u8, 4);
+    /// assert_eq!(5u8 ^ 2u8, 7);
+    /// ```
     #[must_use]
     #[stable(feature = "rust1", since = "1.0.0")]
     fn bitxor(self, rhs: Rhs) -> Self::Output;
@@ -387,6 +423,13 @@ pub trait Shl<Rhs = Self> {
     type Output;
 
     /// Performs the `<<` operation.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// assert_eq!(5u8 << 1, 10);
+    /// assert_eq!(1u8 << 1, 2);
+    /// ```
     #[must_use]
     #[stable(feature = "rust1", since = "1.0.0")]
     fn shl(self, rhs: Rhs) -> Self::Output;
@@ -498,6 +541,13 @@ pub trait Shr<Rhs = Self> {
     type Output;
 
     /// Performs the `>>` operation.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// assert_eq!(5u8 >> 1, 2);
+    /// assert_eq!(2u8 >> 1, 1);
+    /// ```
     #[must_use]
     #[stable(feature = "rust1", since = "1.0.0")]
     fn shr(self, rhs: Rhs) -> Self::Output;
@@ -612,6 +662,26 @@ shr_impl_all! { u8 u16 u32 u64 u128 usize i8 i16 i32 i64 i128 isize }
 )]
 pub trait BitAndAssign<Rhs = Self> {
     /// Performs the `&=` operation.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// let mut x = true;
+    /// x &= false;
+    /// assert_eq!(x, false);
+    ///
+    /// let mut x = true;
+    /// x &= true;
+    /// assert_eq!(x, true);
+    ///
+    /// let mut x: u8 = 5;
+    /// x &= 1;
+    /// assert_eq!(x, 1);
+    ///
+    /// let mut x: u8 = 5;
+    /// x &= 2;
+    /// assert_eq!(x, 0);
+    /// ```
     #[stable(feature = "op_assign_traits", since = "1.8.0")]
     fn bitand_assign(&mut self, rhs: Rhs);
 }
@@ -663,6 +733,26 @@ bitand_assign_impl! { bool usize u8 u16 u32 u64 u128 isize i8 i16 i32 i64 i128 }
 )]
 pub trait BitOrAssign<Rhs = Self> {
     /// Performs the `|=` operation.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// let mut x = true;
+    /// x |= false;
+    /// assert_eq!(x, true);
+    ///
+    /// let mut x = false;
+    /// x |= false;
+    /// assert_eq!(x, false);
+    ///
+    /// let mut x: u8 = 5;
+    /// x |= 1;
+    /// assert_eq!(x, 5);
+    ///
+    /// let mut x: u8 = 5;
+    /// x |= 2;
+    /// assert_eq!(x, 7);
+    /// ```
     #[stable(feature = "op_assign_traits", since = "1.8.0")]
     fn bitor_assign(&mut self, rhs: Rhs);
 }
@@ -714,6 +804,26 @@ bitor_assign_impl! { bool usize u8 u16 u32 u64 u128 isize i8 i16 i32 i64 i128 }
 )]
 pub trait BitXorAssign<Rhs = Self> {
     /// Performs the `^=` operation.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// let mut x = true;
+    /// x ^= false;
+    /// assert_eq!(x, true);
+    ///
+    /// let mut x = true;
+    /// x ^= true;
+    /// assert_eq!(x, false);
+    ///
+    /// let mut x: u8 = 5;
+    /// x ^= 1;
+    /// assert_eq!(x, 4);
+    ///
+    /// let mut x: u8 = 5;
+    /// x ^= 2;
+    /// assert_eq!(x, 7);
+    /// ```
     #[stable(feature = "op_assign_traits", since = "1.8.0")]
     fn bitxor_assign(&mut self, rhs: Rhs);
 }
@@ -763,6 +873,18 @@ bitxor_assign_impl! { bool usize u8 u16 u32 u64 u128 isize i8 i16 i32 i64 i128 }
 )]
 pub trait ShlAssign<Rhs = Self> {
     /// Performs the `<<=` operation.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// let mut x: u8 = 5;
+    /// x <<= 1;
+    /// assert_eq!(x, 10);
+    ///
+    /// let mut x: u8 = 1;
+    /// x <<= 1;
+    /// assert_eq!(x, 2);
+    /// ```
     #[stable(feature = "op_assign_traits", since = "1.8.0")]
     fn shl_assign(&mut self, rhs: Rhs);
 }
@@ -833,6 +955,18 @@ shl_assign_impl_all! { u8 u16 u32 u64 u128 usize i8 i16 i32 i64 i128 isize }
 )]
 pub trait ShrAssign<Rhs = Self> {
     /// Performs the `>>=` operation.
+    ///
+    /// # Examples
+    ///
+    /// ```
+    /// let mut x: u8 = 5;
+    /// x >>= 1;
+    /// assert_eq!(x, 2);
+    ///
+    /// let mut x: u8 = 2;
+    /// x >>= 1;
+    /// assert_eq!(x, 1);
+    /// ```
     #[stable(feature = "op_assign_traits", since = "1.8.0")]
     fn shr_assign(&mut self, rhs: Rhs);
 }