# Trait core::ops::BitAndAssign
1.8.0[−][src]

    pub trait BitAndAssign<Rhs = Self> {
        fn bitand_assign(&mut self, rhs: Rhs);
    }

The bitwise AND assignment operator `&=`.

# Examples

An implementation of `BitAndAssign` that lifts the `&=` operator to a wrapper around `bool`.

    use std::ops::BitAndAssign;

    #[derive(Debug, PartialEq)]
    struct Scalar(bool);

    impl BitAndAssign for Scalar {
        // rhs is the "right-hand side" of the expression `a &= b`
        fn bitand_assign(&mut self, rhs: Self) {
            *self = Self(self.0 & rhs.0)
        }
    }

    let mut scalar = Scalar(true);
    scalar &= Scalar(true);
    assert_eq!(scalar, Scalar(true));

    let mut scalar = Scalar(true);
    scalar &= Scalar(false);
    assert_eq!(scalar, Scalar(false));

    let mut scalar = Scalar(false);
    scalar &= Scalar(true);
    assert_eq!(scalar, Scalar(false));

    let mut scalar = Scalar(false);
    scalar &= Scalar(false);
    assert_eq!(scalar, Scalar(false));

Run

Here, the `BitAndAssign` trait is implemented for a wrapper around `Vec<bool>`.

    use std::ops::BitAndAssign;

    #[derive(Debug, PartialEq)]
    struct BooleanVector(Vec<bool>);

    impl BitAndAssign for BooleanVector {
        // `rhs` is the "right-hand side" of the expression `a &= b`.
        fn bitand_assign(&mut self, rhs: Self) {
            assert_eq!(self.0.len(), rhs.0.len());
            *self = Self(
                self.0
                    .iter()
                    .zip(rhs.0.iter())
                    .map(|(x, y)| *x & *y)
                    .collect()
            );
        }
    }

    let mut bv = BooleanVector(vec![true, true, false, false]);
    bv &= BooleanVector(vec![true, false, true, false]);
    let expected = BooleanVector(vec![true, false, false, false]);
    assert_eq!(bv, expected);

Run

## Required methods

### `fn bitand_assign(&mut self, rhs: Rhs)`[src]

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);

Run
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## Implementors

### `impl BitAndAssign<&'_ Wrapping<i8>> for Wrapping<i8>`1.22.0[src]

#### `fn bitand_assign(&mut self, other: &Wrapping<i8>)`[src]

### `impl BitAndAssign<&'_ Wrapping<i16>> for Wrapping<i16>`1.22.0[src]

#### `fn bitand_assign(&mut self, other: &Wrapping<i16>)`[src]

### `impl BitAndAssign<&'_ Wrapping<i32>> for Wrapping<i32>`1.22.0[src]

#### `fn bitand_assign(&mut self, other: &Wrapping<i32>)`[src]

### `impl BitAndAssign<&'_ Wrapping<i64>> for Wrapping<i64>`1.22.0[src]

#### `fn bitand_assign(&mut self, other: &Wrapping<i64>)`[src]

### `impl BitAndAssign<&'_ Wrapping<i128>> for Wrapping<i128>`1.22.0[src]

#### `fn bitand_assign(&mut self, other: &Wrapping<i128>)`[src]

### `impl BitAndAssign<&'_ Wrapping<isize>> for Wrapping<isize>`1.22.0[src]

#### `fn bitand_assign(&mut self, other: &Wrapping<isize>)`[src]

### `impl BitAndAssign<&'_ Wrapping<u8>> for Wrapping<u8>`1.22.0[src]

#### `fn bitand_assign(&mut self, other: &Wrapping<u8>)`[src]

### `impl BitAndAssign<&'_ Wrapping<u16>> for Wrapping<u16>`1.22.0[src]

#### `fn bitand_assign(&mut self, other: &Wrapping<u16>)`[src]

### `impl BitAndAssign<&'_ Wrapping<u32>> for Wrapping<u32>`1.22.0[src]

#### `fn bitand_assign(&mut self, other: &Wrapping<u32>)`[src]

### `impl BitAndAssign<&'_ Wrapping<u64>> for Wrapping<u64>`1.22.0[src]

#### `fn bitand_assign(&mut self, other: &Wrapping<u64>)`[src]

### `impl BitAndAssign<&'_ Wrapping<u128>> for Wrapping<u128>`1.22.0[src]

#### `fn bitand_assign(&mut self, other: &Wrapping<u128>)`[src]

### `impl BitAndAssign<&'_ Wrapping<usize>> for Wrapping<usize>`1.22.0[src]

#### `fn bitand_assign(&mut self, other: &Wrapping<usize>)`[src]

### `impl BitAndAssign<&'_ bool> for bool` 1.22.0[src]

#### `fn bitand_assign(&mut self, other: &bool)`[src]

### `impl BitAndAssign<&'_ i8> for i8` 1.22.0[src]

#### `fn bitand_assign(&mut self, other: &i8)`[src]

### `impl BitAndAssign<&'_ i16> for i16` 1.22.0[src]

#### `fn bitand_assign(&mut self, other: &i16)`[src]

### `impl BitAndAssign<&'_ i32> for i32` 1.22.0[src]

#### `fn bitand_assign(&mut self, other: &i32)`[src]

### `impl BitAndAssign<&'_ i64> for i64` 1.22.0[src]

#### `fn bitand_assign(&mut self, other: &i64)`[src]

### `impl BitAndAssign<&'_ i128> for i128` 1.22.0[src]

#### `fn bitand_assign(&mut self, other: &i128)`[src]

### `impl BitAndAssign<&'_ isize> for isize` 1.22.0[src]

#### `fn bitand_assign(&mut self, other: &isize)`[src]

### `impl BitAndAssign<&'_ u8> for u8` 1.22.0[src]

#### `fn bitand_assign(&mut self, other: &u8)`[src]

### `impl BitAndAssign<&'_ u16> for u16` 1.22.0[src]

#### `fn bitand_assign(&mut self, other: &u16)`[src]

### `impl BitAndAssign<&'_ u32> for u32` 1.22.0[src]

#### `fn bitand_assign(&mut self, other: &u32)`[src]

### `impl BitAndAssign<&'_ u64> for u64` 1.22.0[src]

#### `fn bitand_assign(&mut self, other: &u64)`[src]

### `impl BitAndAssign<&'_ u128> for u128` 1.22.0[src]

#### `fn bitand_assign(&mut self, other: &u128)`[src]

### `impl BitAndAssign<&'_ usize> for usize` 1.22.0[src]

#### `fn bitand_assign(&mut self, other: &usize)`[src]

### `impl BitAndAssign<Wrapping<i8>> for Wrapping<i8>`[src]

#### `fn bitand_assign(&mut self, other: Wrapping<i8>)`[src]

### `impl BitAndAssign<Wrapping<i16>> for Wrapping<i16>`[src]

#### `fn bitand_assign(&mut self, other: Wrapping<i16>)`[src]

### `impl BitAndAssign<Wrapping<i32>> for Wrapping<i32>`[src]

#### `fn bitand_assign(&mut self, other: Wrapping<i32>)`[src]

### `impl BitAndAssign<Wrapping<i64>> for Wrapping<i64>`[src]

#### `fn bitand_assign(&mut self, other: Wrapping<i64>)`[src]

### `impl BitAndAssign<Wrapping<i128>> for Wrapping<i128>`[src]

#### `fn bitand_assign(&mut self, other: Wrapping<i128>)`[src]

### `impl BitAndAssign<Wrapping<isize>> for Wrapping<isize>`[src]

#### `fn bitand_assign(&mut self, other: Wrapping<isize>)`[src]

### `impl BitAndAssign<Wrapping<u8>> for Wrapping<u8>`[src]

#### `fn bitand_assign(&mut self, other: Wrapping<u8>)`[src]

### `impl BitAndAssign<Wrapping<u16>> for Wrapping<u16>`[src]

#### `fn bitand_assign(&mut self, other: Wrapping<u16>)`[src]

### `impl BitAndAssign<Wrapping<u32>> for Wrapping<u32>`[src]

#### `fn bitand_assign(&mut self, other: Wrapping<u32>)`[src]

### `impl BitAndAssign<Wrapping<u64>> for Wrapping<u64>`[src]

#### `fn bitand_assign(&mut self, other: Wrapping<u64>)`[src]

### `impl BitAndAssign<Wrapping<u128>> for Wrapping<u128>`[src]

#### `fn bitand_assign(&mut self, other: Wrapping<u128>)`[src]

### `impl BitAndAssign<Wrapping<usize>> for Wrapping<usize>`[src]

#### `fn bitand_assign(&mut self, other: Wrapping<usize>)`[src]

### `impl BitAndAssign<bool> for bool`[src]

#### `fn bitand_assign(&mut self, other: bool)`[src]

### `impl BitAndAssign<i8> for i8`[src]

#### `fn bitand_assign(&mut self, other: i8)`[src]

### `impl BitAndAssign<i16> for i16`[src]

#### `fn bitand_assign(&mut self, other: i16)`[src]

### `impl BitAndAssign<i32> for i32`[src]

#### `fn bitand_assign(&mut self, other: i32)`[src]

### `impl BitAndAssign<i64> for i64`[src]

#### `fn bitand_assign(&mut self, other: i64)`[src]

### `impl BitAndAssign<i128> for i128`[src]

#### `fn bitand_assign(&mut self, other: i128)`[src]

### `impl BitAndAssign<isize> for isize`[src]

#### `fn bitand_assign(&mut self, other: isize)`[src]

### `impl BitAndAssign<u8> for u8`[src]

#### `fn bitand_assign(&mut self, other: u8)`[src]

### `impl BitAndAssign<u16> for u16`[src]

#### `fn bitand_assign(&mut self, other: u16)`[src]

### `impl BitAndAssign<u32> for u32`[src]

#### `fn bitand_assign(&mut self, other: u32)`[src]

### `impl BitAndAssign<u64> for u64`[src]

#### `fn bitand_assign(&mut self, other: u64)`[src]

### `impl BitAndAssign<u128> for u128`[src]

#### `fn bitand_assign(&mut self, other: u128)`[src]

### `impl BitAndAssign<usize> for usize`[src]

#### `fn bitand_assign(&mut self, other: usize)`[src]

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