Trait scale_info::prelude::ops::Not

1.0.0 · source · [−]
pub trait Not {
    type Output;
    fn not(self) -> Self::Output;
}
Expand description

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 = 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);

Associated Types

The resulting type after applying the ! operator.

Required methods

Performs the unary ! operation.

Examples
assert_eq!(!true, false);
assert_eq!(!false, true);
assert_eq!(!1u8, 254);
assert_eq!(!0u8, 255);

Implementations on Foreign Types

Inverts each bit in the bit-slice.

Unlike the &, |, and ^ operators, this implementation is guaranteed to update each memory element only once, and is not required to traverse every live bit in the underlying region.

This implementation inverts all elements in the live buffer. You cannot rely on the value of bits in the buffer that are outside the domain of BitVec::as_mut_bitslice.

Implementors