Struct PositiveIsize 

pub struct PositiveIsize(/* private fields */);

An isize that is strictly positive (greater than 0).

PositiveIsize differs from NonZeroUsize in that it is guaranteed to fit in an isize (i.e. the maximum value is isize::MAX as opposed to usize::MAX).

Implementations

impl PositiveIsize

pub const fn new(value: isize) -> Option<Self>

Creates a new PositiveIsize from an isize value.

Returns None if value is less than or equal to zero.

pub const fn new_unsigned(value: usize) -> Option<Self>

Creates a new PositiveIsize from a usize value.

Returns None if value is zero or larger than isize::MAX.

pub const fn new_nonzero_unsigned(value: NonZeroUsize) -> Option<Self>

Creates a new PositiveIsize from a NonZeroUsize value.

Returns None if value is zero or larger than isize::MAX.

pub const fn get(self) -> isize

Returns the isize value within this PositiveIsize.

Trait Implementations

impl Clone for PositiveIsize

fn clone(&self) -> PositiveIsize

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PositiveIsize

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

Formats the value using the given formatter.

impl From<PositiveIsize> for NonZeroIsize

fn from(PositiveIsize: PositiveIsize) -> Self

Converts to this type from the input type.

impl From<PositiveIsize> for NonZeroUsize

fn from(PositiveIsize: PositiveIsize) -> Self

Converts to this type from the input type.

impl From<PositiveIsize> for isize

fn from(PositiveIsize: PositiveIsize) -> Self

Converts to this type from the input type.

impl From<PositiveIsize> for usize

fn from(PositiveIsize: PositiveIsize) -> Self

Converts to this type from the input type.

impl Hash for PositiveIsize

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 Ord for PositiveIsize

fn cmp(&self, other: &PositiveIsize) -> 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 PositiveIsize

fn eq(&self, other: &PositiveIsize) -> 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 PositiveIsize

fn partial_cmp(&self, other: &PositiveIsize) -> 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 PositiveIsize

impl Eq for PositiveIsize

impl StructuralPartialEq for PositiveIsize