1.34.0[][src]Struct std::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) -> NonZeroIsize[src]

Creates a non-zero without checking the value.

Safety

The value must not be zero.

pub fn new(n: isize) -> Option<NonZeroIsize>[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 Hash for NonZeroIsize[src]

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

impl Clone for NonZeroIsize[src]

impl PartialOrd<NonZeroIsize> for NonZeroIsize[src]

impl Display for NonZeroIsize[src]

impl StructuralPartialEq for NonZeroIsize[src]

impl Debug for NonZeroIsize[src]

impl Octal for NonZeroIsize[src]

impl Copy for NonZeroIsize[src]

impl Binary for NonZeroIsize[src]

impl Eq for NonZeroIsize[src]

impl PartialEq<NonZeroIsize> for NonZeroIsize[src]

impl LowerHex for NonZeroIsize[src]

impl Ord for NonZeroIsize[src]

impl StructuralEq for NonZeroIsize[src]

impl UpperHex for NonZeroIsize[src]

impl FromStr for NonZeroIsize1.35.0[src]

type Err = ParseIntError

The associated error which can be returned from parsing.

Auto Trait Implementations

impl UnwindSafe for NonZeroIsize

impl RefUnwindSafe for NonZeroIsize

impl Unpin for NonZeroIsize

impl Send for NonZeroIsize

impl Sync for NonZeroIsize

Blanket Implementations

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

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, U> Into<U> for T where
    U: From<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> 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]

impl<T> ToOwned for T where
    T: Clone
[src]

type Owned = T

The resulting type after obtaining ownership.

impl<T> ToString for T where
    T: Display + ?Sized
[src]