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<Positive<f32>>

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) -> Positive<f32>

Safe reciprocal: always valid for positive values.

impl Positive<f64>

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

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) -> Positive<f64>

Safe reciprocal: always valid for positive values.

impl Positive<i8>

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

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<Positive<i16>>

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<Positive<i32>>

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<Positive<i64>>

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<Positive<i128>>

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<Positive<u8>>

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<Positive<u16>>

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<Positive<u32>>

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<Positive<u64>>

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<Positive<u128>>

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<Positive<u8>>

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

impl Positive<u16>

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

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

impl Positive<u32>

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

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

impl Positive<u64>

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

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

impl Positive<u128>

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

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

Trait Implementations

impl<T> Clone for Positive<T>

where T: Clone,

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 for Positive<T>

where T: Copy,

impl<T> Debug for Positive<T>

where T: Debug,

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

Formats the value using the given formatter.

impl<T> PartialEq for Positive<T>

where T: PartialEq,

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 for Positive<T>

where T: PartialOrd,

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> StructuralPartialEq for Positive<T>

where T: PartialEq,