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

    #[lang = "bitand_assign"]
    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 = Scalar(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 = BooleanVector(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)`

Performs the `&=` operation.

## Implementors

###

`impl BitAndAssign<Wrapping<i128>> for Wrapping<i128>`

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`fn bitand_assign(&mut self, other: Wrapping<i128>)`

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`impl BitAndAssign<Wrapping<i16>> for Wrapping<i16>`

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`fn bitand_assign(&mut self, other: Wrapping<i16>)`

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`impl BitAndAssign<Wrapping<i32>> for Wrapping<i32>`

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`fn bitand_assign(&mut self, other: Wrapping<i32>)`

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###

`impl BitAndAssign<Wrapping<i64>> for Wrapping<i64>`

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`fn bitand_assign(&mut self, other: Wrapping<i64>)`

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`impl BitAndAssign<Wrapping<i8>> for Wrapping<i8>`

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`fn bitand_assign(&mut self, other: Wrapping<i8>)`

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`impl BitAndAssign<Wrapping<isize>> for Wrapping<isize>`

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`fn bitand_assign(&mut self, other: Wrapping<isize>)`

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###

`impl BitAndAssign<Wrapping<u128>> for Wrapping<u128>`

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`fn bitand_assign(&mut self, other: Wrapping<u128>)`

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###

`impl BitAndAssign<Wrapping<u16>> for Wrapping<u16>`

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####

`fn bitand_assign(&mut self, other: Wrapping<u16>)`

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###

`impl BitAndAssign<Wrapping<u32>> for Wrapping<u32>`

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####

`fn bitand_assign(&mut self, other: Wrapping<u32>)`

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###

`impl BitAndAssign<Wrapping<u64>> for Wrapping<u64>`

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`fn bitand_assign(&mut self, other: Wrapping<u64>)`

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###

`impl BitAndAssign<Wrapping<u8>> for Wrapping<u8>`

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`fn bitand_assign(&mut self, other: Wrapping<u8>)`

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###

`impl BitAndAssign<Wrapping<usize>> for Wrapping<usize>`

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`fn bitand_assign(&mut self, other: Wrapping<usize>)`

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###

`impl BitAndAssign<bool> for bool`

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####

`fn bitand_assign(&mut self, other: bool)`

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###

`impl BitAndAssign<i128> for i128`

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####

`fn bitand_assign(&mut self, other: i128)`

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###

`impl BitAndAssign<i16> for i16`

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####

`fn bitand_assign(&mut self, other: i16)`

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###

`impl BitAndAssign<i32> for i32`

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####

`fn bitand_assign(&mut self, other: i32)`

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###

`impl BitAndAssign<i64> for i64`

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####

`fn bitand_assign(&mut self, other: i64)`

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###

`impl BitAndAssign<i8> for i8`

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####

`fn bitand_assign(&mut self, other: i8)`

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###

`impl BitAndAssign<isize> for isize`

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####

`fn bitand_assign(&mut self, other: isize)`

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###

`impl BitAndAssign<u128> for u128`

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####

`fn bitand_assign(&mut self, other: u128)`

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###

`impl BitAndAssign<u16> for u16`

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####

`fn bitand_assign(&mut self, other: u16)`

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###

`impl BitAndAssign<u32> for u32`

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####

`fn bitand_assign(&mut self, other: u32)`

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###

`impl BitAndAssign<u64> for u64`

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####

`fn bitand_assign(&mut self, other: u64)`

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###

`impl BitAndAssign<u8> for u8`

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####

`fn bitand_assign(&mut self, other: u8)`

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###

`impl BitAndAssign<usize> for usize`

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####

`fn bitand_assign(&mut self, other: usize)`

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###

`impl<'a> BitAndAssign<&'a Wrapping<i128>> for Wrapping<i128>`

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####

`fn bitand_assign(&mut self, other: &'a Wrapping<i128>)`

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###

`impl<'a> BitAndAssign<&'a Wrapping<i16>> for Wrapping<i16>`

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####

`fn bitand_assign(&mut self, other: &'a Wrapping<i16>)`

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###

`impl<'a> BitAndAssign<&'a Wrapping<i32>> for Wrapping<i32>`

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####

`fn bitand_assign(&mut self, other: &'a Wrapping<i32>)`

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###

`impl<'a> BitAndAssign<&'a Wrapping<i64>> for Wrapping<i64>`

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####

`fn bitand_assign(&mut self, other: &'a Wrapping<i64>)`

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###

`impl<'a> BitAndAssign<&'a Wrapping<i8>> for Wrapping<i8>`

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####

`fn bitand_assign(&mut self, other: &'a Wrapping<i8>)`

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###

`impl<'a> BitAndAssign<&'a Wrapping<isize>> for Wrapping<isize>`

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`fn bitand_assign(&mut self, other: &'a Wrapping<isize>)`

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###

`impl<'a> BitAndAssign<&'a Wrapping<u128>> for Wrapping<u128>`

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####

`fn bitand_assign(&mut self, other: &'a Wrapping<u128>)`

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###

`impl<'a> BitAndAssign<&'a Wrapping<u16>> for Wrapping<u16>`

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`fn bitand_assign(&mut self, other: &'a Wrapping<u16>)`

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###

`impl<'a> BitAndAssign<&'a Wrapping<u32>> for Wrapping<u32>`

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####

`fn bitand_assign(&mut self, other: &'a Wrapping<u32>)`

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###

`impl<'a> BitAndAssign<&'a Wrapping<u64>> for Wrapping<u64>`

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####

`fn bitand_assign(&mut self, other: &'a Wrapping<u64>)`

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###

`impl<'a> BitAndAssign<&'a Wrapping<u8>> for Wrapping<u8>`

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####

`fn bitand_assign(&mut self, other: &'a Wrapping<u8>)`

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###

`impl<'a> BitAndAssign<&'a Wrapping<usize>> for Wrapping<usize>`

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####

`fn bitand_assign(&mut self, other: &'a Wrapping<usize>)`

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###

`impl<'a> BitAndAssign<&'a bool> for bool`

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`fn bitand_assign(&mut self, other: &'a bool)`

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###

`impl<'a> BitAndAssign<&'a i128> for i128`

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####

`fn bitand_assign(&mut self, other: &'a i128)`

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###

`impl<'a> BitAndAssign<&'a i16> for i16`

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####

`fn bitand_assign(&mut self, other: &'a i16)`

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###

`impl<'a> BitAndAssign<&'a i32> for i32`

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####

`fn bitand_assign(&mut self, other: &'a i32)`

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###

`impl<'a> BitAndAssign<&'a i64> for i64`

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`fn bitand_assign(&mut self, other: &'a i64)`

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###

`impl<'a> BitAndAssign<&'a i8> for i8`

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####

`fn bitand_assign(&mut self, other: &'a i8)`

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###

`impl<'a> BitAndAssign<&'a isize> for isize`

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####

`fn bitand_assign(&mut self, other: &'a isize)`

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###

`impl<'a> BitAndAssign<&'a u128> for u128`

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####

`fn bitand_assign(&mut self, other: &'a u128)`

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###

`impl<'a> BitAndAssign<&'a u16> for u16`

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####

`fn bitand_assign(&mut self, other: &'a u16)`

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###

`impl<'a> BitAndAssign<&'a u32> for u32`

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####

`fn bitand_assign(&mut self, other: &'a u32)`

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###

`impl<'a> BitAndAssign<&'a u64> for u64`

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####

`fn bitand_assign(&mut self, other: &'a u64)`

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###

`impl<'a> BitAndAssign<&'a u8> for u8`

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####

`fn bitand_assign(&mut self, other: &'a u8)`

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###

`impl<'a> BitAndAssign<&'a usize> for usize`

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####

`fn bitand_assign(&mut self, other: &'a usize)`

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