Trait Not 

pub trait Not {
    type Output;

    // Required method
    fn not(self) -> Self::Output;
}

The unary negation operator !. It performs either logical or bitwise negation, depending on the type.

Examples

An implementation of Not for Answer, which enables the use of ! to invert its value.

use std::ops::Not;

#[derive(Debug, PartialEq)]
enum Answer {
    Yes,
    No,
}

impl Not for Answer {
    type Output = Self;

    fn not(self) -> Self::Output {
        match self {
            Answer::Yes => Answer::No,
            Answer::No => Answer::Yes
        }
    }
}

assert_eq!(!Answer::Yes, Answer::No);
assert_eq!(!Answer::No, Answer::Yes);

Required Associated Types

type Output

The resulting type after applying the ! operator.

Required Methods

fn not(self) -> Self::Output

Performs the unary ! operation using logical or bitwise negation.

Examples

// Logical negation changes between true and false:
assert_eq!(!true, false);
assert_eq!(!false, true);

// Bitwise negation changes between 0 and 1 in the binary
// representation of integers:
assert_eq!(!1u8, 254);
assert_eq!(!0u8, 255);

// The same examples, represented in binary:
assert_eq!(!0b0000_0001u8, 0b1111_1110);
assert_eq!(!0b0000_0000u8, 0b1111_1111);

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl Not for !

type Output = !

impl Not for &Ipv4Addr

type Output = Ipv4Addr

impl Not for &Ipv6Addr

type Output = Ipv6Addr

impl Not for &Saturating<i8>

type Output = <Saturating<i8> as Not>::Output

impl Not for &Saturating<i16>

type Output = <Saturating<i16> as Not>::Output

impl Not for &Saturating<i32>

type Output = <Saturating<i32> as Not>::Output

impl Not for &Saturating<i64>

type Output = <Saturating<i64> as Not>::Output

impl Not for &Saturating<i128>

type Output = <Saturating<i128> as Not>::Output

impl Not for &Saturating<isize>

type Output = <Saturating<isize> as Not>::Output

impl Not for &Saturating<u8>

type Output = <Saturating<u8> as Not>::Output

impl Not for &Saturating<u16>

type Output = <Saturating<u16> as Not>::Output

impl Not for &Saturating<u32>

type Output = <Saturating<u32> as Not>::Output

impl Not for &Saturating<u64>

type Output = <Saturating<u64> as Not>::Output

impl Not for &Saturating<u128>

type Output = <Saturating<u128> as Not>::Output

impl Not for &Saturating<usize>

type Output = <Saturating<usize> as Not>::Output

impl Not for &Wrapping<i8>

type Output = <Wrapping<i8> as Not>::Output

impl Not for &Wrapping<i16>

type Output = <Wrapping<i16> as Not>::Output

impl Not for &Wrapping<i32>

type Output = <Wrapping<i32> as Not>::Output

impl Not for &Wrapping<i64>

type Output = <Wrapping<i64> as Not>::Output

impl Not for &Wrapping<i128>

type Output = <Wrapping<i128> as Not>::Output

impl Not for &Wrapping<isize>

type Output = <Wrapping<isize> as Not>::Output

impl Not for &Wrapping<u8>

type Output = <Wrapping<u8> as Not>::Output

impl Not for &Wrapping<u16>

type Output = <Wrapping<u16> as Not>::Output

impl Not for &Wrapping<u32>

type Output = <Wrapping<u32> as Not>::Output

impl Not for &Wrapping<u64>

type Output = <Wrapping<u64> as Not>::Output

impl Not for &Wrapping<u128>

type Output = <Wrapping<u128> as Not>::Output

impl Not for &Wrapping<usize>

type Output = <Wrapping<usize> as Not>::Output

impl Not for &bool

type Output = <bool as Not>::Output

impl Not for &i8

type Output = <i8 as Not>::Output

impl Not for &i16

type Output = <i16 as Not>::Output

impl Not for &i32

type Output = <i32 as Not>::Output

impl Not for &i64

type Output = <i64 as Not>::Output

impl Not for &i128

type Output = <i128 as Not>::Output

impl Not for &isize

type Output = <isize as Not>::Output

impl Not for &u8

type Output = <u8 as Not>::Output

impl Not for &u16

type Output = <u16 as Not>::Output

impl Not for &u32

type Output = <u32 as Not>::Output

impl Not for &u64

type Output = <u64 as Not>::Output

impl Not for &u128

type Output = <u128 as Not>::Output

impl Not for &usize

type Output = <usize as Not>::Output

impl Not for Ipv4Addr

type Output = Ipv4Addr

impl Not for Ipv6Addr

type Output = Ipv6Addr

impl Not for Saturating<i8>

type Output = Saturating<i8>

impl Not for Saturating<i16>

type Output = Saturating<i16>

impl Not for Saturating<i32>

type Output = Saturating<i32>

impl Not for Saturating<i64>

type Output = Saturating<i64>

impl Not for Saturating<i128>

type Output = Saturating<i128>

impl Not for Saturating<isize>

type Output = Saturating<isize>

impl Not for Saturating<u8>

type Output = Saturating<u8>

impl Not for Saturating<u16>

type Output = Saturating<u16>

impl Not for Saturating<u32>

type Output = Saturating<u32>

impl Not for Saturating<u64>

type Output = Saturating<u64>

impl Not for Saturating<u128>

type Output = Saturating<u128>

impl Not for Saturating<usize>

type Output = Saturating<usize>

impl Not for Wrapping<i8>

type Output = Wrapping<i8>

impl Not for Wrapping<i16>

type Output = Wrapping<i16>

impl Not for Wrapping<i32>

type Output = Wrapping<i32>

impl Not for Wrapping<i64>

type Output = Wrapping<i64>

impl Not for Wrapping<i128>

type Output = Wrapping<i128>

impl Not for Wrapping<isize>

type Output = Wrapping<isize>

impl Not for Wrapping<u8>

type Output = Wrapping<u8>

impl Not for Wrapping<u16>

type Output = Wrapping<u16>

impl Not for Wrapping<u32>

type Output = Wrapping<u32>

impl Not for Wrapping<u64>

type Output = Wrapping<u64>

impl Not for Wrapping<u128>

type Output = Wrapping<u128>

impl Not for Wrapping<usize>

type Output = Wrapping<usize>

impl Not for bool

type Output = bool

impl Not for i8

type Output = i8

impl Not for i16

type Output = i16

impl Not for i32

type Output = i32

impl Not for i64

type Output = i64

impl Not for i128

type Output = i128

impl Not for isize

type Output = isize

impl Not for u8

type Output = u8

impl Not for u16

type Output = u16

impl Not for u32

type Output = u32

impl Not for u64

type Output = u64

impl Not for u128

type Output = u128

impl Not for usize

type Output = usize

impl<T, const N: usize> Not for Mask<T, N>

where T: MaskElement,

type Output = Mask<T, N>

impl<const N: usize> Not for Simd<i8, N>

where i8: SimdElement,

type Output = Simd<i8, N>

impl<const N: usize> Not for Simd<i16, N>

where i16: SimdElement,

type Output = Simd<i16, N>

impl<const N: usize> Not for Simd<i32, N>

where i32: SimdElement,

type Output = Simd<i32, N>

impl<const N: usize> Not for Simd<i64, N>

where i64: SimdElement,

type Output = Simd<i64, N>

impl<const N: usize> Not for Simd<isize, N>

where isize: SimdElement,

type Output = Simd<isize, N>

impl<const N: usize> Not for Simd<u8, N>

where u8: SimdElement,

type Output = Simd<u8, N>

impl<const N: usize> Not for Simd<u16, N>

where u16: SimdElement,

type Output = Simd<u16, N>

impl<const N: usize> Not for Simd<u32, N>

where u32: SimdElement,

type Output = Simd<u32, N>

impl<const N: usize> Not for Simd<u64, N>

where u64: SimdElement,

type Output = Simd<u64, N>

impl<const N: usize> Not for Simd<usize, N>

where usize: SimdElement,

type Output = Simd<usize, N>