#[repr(transparent)]pub struct NonZeroUsize(_);
An integer that is known not to equal zero.
This enables some memory layout optimization. For example, Option<NonZeroUsize> is the same size as usize:
use std::mem::size_of; assert_eq!(size_of::<Option<core::num::NonZeroUsize>>(), size_of::<usize>());
impl NonZeroUsize[src]
pub const unsafe fn new_unchecked(n: usize) -> NonZeroUsize[src]
Creates a non-zero without checking the value.
The value must not be zero.
pub const fn new(n: usize) -> Option<NonZeroUsize>[src]
Creates a non-zero if the given value is not zero.
pub const fn get(self) -> usize[src]
Returns the value as a primitive type.
impl Binary for NonZeroUsize[src]
impl BitOr<NonZeroUsize> for usize[src]1.45.0
type Output = NonZeroUsizeThe resulting type after applying the | operator.
fn bitor(self, rhs: NonZeroUsize) -> <usize as BitOr<NonZeroUsize>>::Output[src]
impl BitOr<NonZeroUsize> for NonZeroUsize[src]1.45.0
type Output = NonZeroUsizeThe resulting type after applying the | operator.
fn bitor(
self,
rhs: NonZeroUsize
) -> <NonZeroUsize as BitOr<NonZeroUsize>>::Output[src]
impl BitOr<usize> for NonZeroUsize[src]1.45.0
type Output = NonZeroUsizeThe resulting type after applying the | operator.
fn bitor(self, rhs: usize) -> <NonZeroUsize as BitOr<usize>>::Output[src]
impl BitOrAssign<NonZeroUsize> for NonZeroUsize[src]1.45.0
fn bitor_assign(&mut self, rhs: NonZeroUsize)[src]
impl BitOrAssign<usize> for NonZeroUsize[src]1.45.0
fn bitor_assign(&mut self, rhs: usize)[src]
impl Clone for NonZeroUsize[src]
fn clone(&self) -> NonZeroUsize[src]
fn clone_from(&mut self, source: &Self)[src]1.0.0
impl Copy for NonZeroUsize[src]
impl Debug for NonZeroUsize[src]
impl Display for NonZeroUsize[src]
impl Eq for NonZeroUsize[src]
impl From<NonZeroU16> for NonZeroUsize[src]1.41.0
Converts NonZeroU16 to NonZeroUsize losslessly.
fn from(small: NonZeroU16) -> NonZeroUsize[src]
impl From<NonZeroU8> for NonZeroUsize[src]1.41.0
Converts NonZeroU8 to NonZeroUsize losslessly.
fn from(small: NonZeroU8) -> NonZeroUsize[src]
impl From<NonZeroUsize> for usize[src]1.31.0
fn from(nonzero: NonZeroUsize) -> usize[src]
Converts a NonZeroUsize into an usize
impl FromStr for NonZeroUsize[src]1.35.0
type Err = ParseIntErrorThe associated error which can be returned from parsing.
fn from_str(src: &str) -> Result<NonZeroUsize, <NonZeroUsize as FromStr>::Err>[src]
impl Hash for NonZeroUsize[src]
fn hash<__H>(&self, state: &mut __H) where
__H: Hasher, [src]
fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher, [src]1.3.0
impl LowerHex for NonZeroUsize[src]
impl Octal for NonZeroUsize[src]
impl Ord for NonZeroUsize[src]
fn cmp(&self, other: &NonZeroUsize) -> Ordering[src]
fn max(self, other: Self) -> Self[src]1.21.0
fn min(self, other: Self) -> Self[src]1.21.0
fn clamp(self, min: Self, max: Self) -> Self[src]
impl PartialEq<NonZeroUsize> for NonZeroUsize[src]
fn eq(&self, other: &NonZeroUsize) -> bool[src]
fn ne(&self, other: &NonZeroUsize) -> bool[src]
impl PartialOrd<NonZeroUsize> for NonZeroUsize[src]
fn partial_cmp(&self, other: &NonZeroUsize) -> Option<Ordering>[src]
fn lt(&self, other: &NonZeroUsize) -> bool[src]
fn le(&self, other: &NonZeroUsize) -> bool[src]
fn gt(&self, other: &NonZeroUsize) -> bool[src]
fn ge(&self, other: &NonZeroUsize) -> bool[src]
impl StructuralEq for NonZeroUsize[src]
impl StructuralPartialEq for NonZeroUsize[src]
impl TryFrom<usize> for NonZeroUsize[src]1.46.0
Attempts to convert usize to NonZeroUsize.
type Error = TryFromIntErrorThe type returned in the event of a conversion error.
fn try_from(
value: usize
) -> Result<NonZeroUsize, <NonZeroUsize as TryFrom<usize>>::Error>[src]
impl UpperHex for NonZeroUsize[src]
impl RefUnwindSafe for NonZeroUsizeimpl Send for NonZeroUsizeimpl Sync for NonZeroUsizeimpl Unpin for NonZeroUsizeimpl UnwindSafe for NonZeroUsizeimpl<T> Any for T where
T: 'static + ?Sized, [src]
impl<T> Borrow<T> for T where
T: ?Sized, [src]
fn borrow(&self) -> &TⓘNotable traits for &'_ mut F
impl<'_, F> Future for &'_ mut F where
F: Unpin + Future + ?Sized,
type Output = <F as Future>::Output;
impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized,
type Item = <I as Iterator>::Item;
impl<R: Read + ?Sized, '_> Read for &'_ mut R
impl<W: Write + ?Sized, '_> Write for &'_ mut W
[src]
impl<T> BorrowMut<T> for T where
T: ?Sized, [src]
fn borrow_mut(&mut self) -> &mut TⓘNotable traits for &'_ mut F
impl<'_, F> Future for &'_ mut F where
F: Unpin + Future + ?Sized,
type Output = <F as Future>::Output;
impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized,
type Item = <I as Iterator>::Item;
impl<R: Read + ?Sized, '_> Read for &'_ mut R
impl<W: Write + ?Sized, '_> Write for &'_ mut W
[src]
impl<T> From<T> for T[src]
impl<T, U> Into<U> for T where
U: From<T>, [src]
impl<T> ToOwned for T where
T: Clone, [src]
type Owned = TThe resulting type after obtaining ownership.
fn to_owned(&self) -> T[src]
fn clone_into(&self, target: &mut T)[src]
impl<T> ToString for T where
T: Display + ?Sized, [src]
impl<T, U> TryFrom<U> for T where
U: Into<T>, [src]
type Error = InfallibleThe type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]
impl<T, U> TryInto<U> for T where
U: TryFrom<T>, [src]
© 2010 The Rust Project Developers
Licensed under the Apache License, Version 2.0 or the MIT license, at your option.
https://doc.rust-lang.org/std/num/struct.NonZeroUsize.html