1.0.0[][src]Trait core::ops::Not

#[lang = "not"]
pub trait Not { type Output;
#[must_use]
fn not(self) -> Self::Output; }

The unary logical negation operator !.

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 = Answer;

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

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

Associated Types

The resulting type after applying the ! operator.

Required Methods

Performs the unary ! operation.

Implementors

impl Not for Wrapping<i8>
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impl Not for Wrapping<i16>
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impl Not for Wrapping<i32>
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impl Not for Wrapping<i64>
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impl Not for Wrapping<i128>
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impl Not for Wrapping<isize>
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impl Not for Wrapping<u8>
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impl Not for Wrapping<u16>
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impl Not for Wrapping<u32>
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impl Not for Wrapping<u64>
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impl Not for Wrapping<u128>
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impl Not for Wrapping<usize>
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impl Not for bool
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impl Not for i8
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impl Not for i16
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impl Not for i32
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impl Not for i64
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impl Not for i128
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impl Not for isize
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impl Not for u8
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impl Not for u16
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impl Not for u32
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impl Not for u64
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impl Not for u128
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impl Not for usize
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impl<'a> Not for &'a Wrapping<i8>
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impl<'a> Not for &'a Wrapping<i16>
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impl<'a> Not for &'a Wrapping<i32>
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impl<'a> Not for &'a Wrapping<i64>
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impl<'a> Not for &'a Wrapping<i128>
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impl<'a> Not for &'a Wrapping<isize>
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impl<'a> Not for &'a Wrapping<u8>
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impl<'a> Not for &'a Wrapping<u16>
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impl<'a> Not for &'a Wrapping<u32>
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impl<'a> Not for &'a Wrapping<u64>
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impl<'a> Not for &'a Wrapping<u128>
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impl<'a> Not for &'a Wrapping<usize>
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impl<'a> Not for &'a bool
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impl<'a> Not for &'a i8
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impl<'a> Not for &'a i16
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impl<'a> Not for &'a i32
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impl<'a> Not for &'a i64
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impl<'a> Not for &'a i128
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impl<'a> Not for &'a isize
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impl<'a> Not for &'a u8
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impl<'a> Not for &'a u16
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impl<'a> Not for &'a u32
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impl<'a> Not for &'a u64
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impl<'a> Not for &'a u128
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impl<'a> Not for &'a usize
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