1.34.0[][src]Struct core::num::NonZeroIsize

#[repr(transparent)]
pub struct NonZeroIsize(_);

An integer that is known not to equal zero.

This enables some memory layout optimization. For example, Option<NonZeroIsize> is the same size as isize:

use std::mem::size_of;
assert_eq!(size_of::<Option<core::num::NonZeroIsize>>(), size_of::<isize>());Run

Methods

impl NonZeroIsize[src]

pub const unsafe fn new_unchecked(n: isize) -> Self[src]

Creates a non-zero without checking the value.

Safety

The value must not be zero.

pub fn new(n: isize) -> Option<Self>[src]

Creates a non-zero if the given value is not zero.

pub const fn get(self) -> isize[src]

Returns the value as a primitive type.

Trait Implementations

impl StructuralPartialEq for NonZeroIsize[src]

impl StructuralEq for NonZeroIsize[src]

impl Copy for NonZeroIsize[src]

impl PartialEq<NonZeroIsize> for NonZeroIsize[src]

impl Eq for NonZeroIsize[src]

impl Ord for NonZeroIsize[src]

impl PartialOrd<NonZeroIsize> for NonZeroIsize[src]

impl Clone for NonZeroIsize[src]

impl From<NonZeroIsize> for isize1.31.0[src]

impl FromStr for NonZeroIsize1.35.0[src]

type Err = ParseIntError

The associated error which can be returned from parsing.

impl Hash for NonZeroIsize[src]

impl Debug for NonZeroIsize[src]

impl Display for NonZeroIsize[src]

impl Octal for NonZeroIsize[src]

impl Binary for NonZeroIsize[src]

impl LowerHex for NonZeroIsize[src]

impl UpperHex for NonZeroIsize[src]

Auto Trait Implementations

impl Send for NonZeroIsize

impl Sync for NonZeroIsize

impl Unpin for NonZeroIsize

Blanket Implementations

impl<T, U> Into<U> for T where
    U: From<T>, 
[src]

impl<T> From<T> for T[src]

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
[src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
[src]

type Error = !

The type returned in the event of a conversion error.

impl<T> Borrow<T> for T where
    T: ?Sized
[src]

impl<T> BorrowMut<T> for T where
    T: ?Sized
[src]

impl<T> Any for T where
    T: 'static + ?Sized
[src]