Struct Positive 

pub struct Positive<T> { /* private fields */ }

A numeric value guaranteed to be strictly positive (> 0).

Useful for operations that require nonzero values, such as Field::reciprocal.

Implementations

impl Positive<f32>

pub fn try_new(v: f32) -> Option<Self>

Attempt to construct a Positive from a value. Returns None if the value is not strictly positive.

pub fn get(self) -> f32

Get the inner value.

pub fn reciprocal(self) -> Self

Safe reciprocal: always valid for positive values.

impl Positive<f64>

pub fn try_new(v: f64) -> Option<Self>

Attempt to construct a Positive from a value. Returns None if the value is not strictly positive.

pub fn get(self) -> f64

Get the inner value.

pub fn reciprocal(self) -> Self

Safe reciprocal: always valid for positive values.

impl Positive<i8>

pub fn try_new(v: i8) -> Option<Self>

Attempt to construct a Positive from a value. Returns None if the value is zero or negative.

pub fn get(self) -> i8

Get the inner value.

impl Positive<i16>

pub fn try_new(v: i16) -> Option<Self>

Attempt to construct a Positive from a value. Returns None if the value is zero or negative.

pub fn get(self) -> i16

Get the inner value.

impl Positive<i32>

pub fn try_new(v: i32) -> Option<Self>

Attempt to construct a Positive from a value. Returns None if the value is zero or negative.

pub fn get(self) -> i32

Get the inner value.

impl Positive<i64>

pub fn try_new(v: i64) -> Option<Self>

Attempt to construct a Positive from a value. Returns None if the value is zero or negative.

pub fn get(self) -> i64

Get the inner value.

impl Positive<i128>

pub fn try_new(v: i128) -> Option<Self>

Attempt to construct a Positive from a value. Returns None if the value is zero or negative.

pub fn get(self) -> i128

Get the inner value.

impl Positive<u8>

pub fn try_new(v: u8) -> Option<Self>

Attempt to construct a Positive from a value. Returns None if the value is zero or negative.

pub fn get(self) -> u8

Get the inner value.

impl Positive<u16>

pub fn try_new(v: u16) -> Option<Self>

Attempt to construct a Positive from a value. Returns None if the value is zero or negative.

pub fn get(self) -> u16

Get the inner value.

impl Positive<u32>

pub fn try_new(v: u32) -> Option<Self>

Attempt to construct a Positive from a value. Returns None if the value is zero or negative.

pub fn get(self) -> u32

Get the inner value.

impl Positive<u64>

pub fn try_new(v: u64) -> Option<Self>

Attempt to construct a Positive from a value. Returns None if the value is zero or negative.

pub fn get(self) -> u64

Get the inner value.

impl Positive<u128>

pub fn try_new(v: u128) -> Option<Self>

Attempt to construct a Positive from a value. Returns None if the value is zero or negative.

pub fn get(self) -> u128

Get the inner value.

impl Positive<u8>

pub fn from_nonzero(v: u8) -> Option<Self>

Construct from a nonzero unsigned value. Returns None if zero.

impl Positive<u16>

pub fn from_nonzero(v: u16) -> Option<Self>

Construct from a nonzero unsigned value. Returns None if zero.

impl Positive<u32>

pub fn from_nonzero(v: u32) -> Option<Self>

Construct from a nonzero unsigned value. Returns None if zero.

impl Positive<u64>

pub fn from_nonzero(v: u64) -> Option<Self>

Construct from a nonzero unsigned value. Returns None if zero.

impl Positive<u128>

pub fn from_nonzero(v: u128) -> Option<Self>

Construct from a nonzero unsigned value. Returns None if zero.

Trait Implementations

impl<T: Clone> Clone for Positive<T>

fn clone(&self) -> Positive<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Copy> Copy for Positive<T>

impl<T: Debug> Debug for Positive<T>

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

Formats the value using the given formatter.

impl<T: PartialEq> PartialEq for Positive<T>

fn eq(&self, other: &Positive<T>) -> 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<T: PartialOrd> PartialOrd for Positive<T>

fn partial_cmp(&self, other: &Positive<T>) -> 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<T: PartialEq> StructuralPartialEq for Positive<T>