Enum Sign 

pub enum Sign {
    Positive = 1,
    Negative = -1,
}

Variants

Positive = 1

Negative = -1

Implementations

impl Sign

pub fn to_isize(self) -> isize

pub fn to_i64(self) -> i64

pub fn to_i32(self) -> i32

pub fn to_i16(self) -> i16

pub fn to_i8(self) -> i16

pub fn parity(n: impl Into<i32>) -> Self

(-1)^n (i.e. if n % 2 == 0 { Positive } else { Negative })

use num_sign::*;
assert_eq!(Sign::parity(0), Positive);
assert_eq!(Sign::parity(7), Negative);
assert_eq!(Sign::parity(-2), Positive);
assert_eq!(Sign::parity(false), Positive);
assert_eq!(Sign::parity(true), Negative);

Trait Implementations

impl Clone for Sign

fn clone(&self) -> Sign

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Sign

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for Sign

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl From<Sign> for f32

fn from(sign: Sign) -> f32

Converts to this type from the input type.

impl From<Sign> for f64

fn from(sign: Sign) -> f64

Converts to this type from the input type.

impl From<Sign> for i16

fn from(sign: Sign) -> i16

Converts to this type from the input type.

impl From<Sign> for i32

fn from(sign: Sign) -> i32

Converts to this type from the input type.

impl From<Sign> for i64

fn from(sign: Sign) -> i64

Converts to this type from the input type.

impl From<Sign> for i8

fn from(sign: Sign) -> i8

Converts to this type from the input type.

impl From<Sign> for isize

fn from(sign: Sign) -> isize

Converts to this type from the input type.

impl FromStr for Sign

type Err = ()

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl Hash for Sign

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<T: Neg<Output = T>> Mul<T> for Sign

type Output = T

The resulting type after applying the * operator.

fn mul(self, rhs: T) -> T

Performs the * operation.

impl Neg for Sign

type Output = Sign

The resulting type after applying the - operator.

fn neg(self) -> Self

Performs the unary - operation.

impl Ord for Sign

fn cmp(&self, other: &Sign) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Sign

fn eq(&self, other: &Sign) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for Sign

fn partial_cmp(&self, other: &Sign) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for Sign

impl Eq for Sign

impl StructuralPartialEq for Sign