Trait snarkvm_circuit::Neg

1.0.0 · source · 
pub trait Neg {
    type Output;

    fn neg(self) -> Self::Output;
}
Expand description

The unary negation operator -.

Examples

An implementation of Neg for Sign, which allows the use of - to negate its value.

use std::ops::Neg;

#[derive(Debug, PartialEq)]
enum Sign {
    Negative,
    Zero,
    Positive,
}

impl Neg for Sign {
    type Output = Self;

    fn neg(self) -> Self::Output {
        match self {
            Sign::Negative => Sign::Positive,
            Sign::Zero => Sign::Zero,
            Sign::Positive => Sign::Negative,
        }
    }
}

// A negative positive is a negative.
assert_eq!(-Sign::Positive, Sign::Negative);
// A double negative is a positive.
assert_eq!(-Sign::Negative, Sign::Positive);
// Zero is its own negation.
assert_eq!(-Sign::Zero, Sign::Zero);

Required Associated Types

The resulting type after applying the - operator.

Required Methods

Performs the unary - operation.

Example
let x: i32 = 12;
assert_eq!(-x, -12);

Trait Implementations

Returns the number of constants, public inputs, private inputs, and constraints.
Returns the number of constants, public inputs, private inputs, and constraints.
Returns the number of constants, public inputs, private inputs, and constraints.
Returns the mode of the output.
Returns the mode of the output.
Returns the mode of the output.

Implementors

-Z0 = Z0

-NInt = PInt

-PInt = NInt