1.28.0[−][src]Struct std::num::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>());Run
Methods
impl NonZeroUsize[src]
pub const unsafe fn new_unchecked(n: usize) -> NonZeroUsize[src]
pub 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.
Trait Implementations
impl Binary for NonZeroUsize[src]
impl Clone for NonZeroUsize[src]
fn clone(&self) -> NonZeroUsize[src]
fn clone_from(&mut self, source: &Self)1.0.0[src]
impl Copy for NonZeroUsize[src]
impl Debug for NonZeroUsize[src]
impl Display for NonZeroUsize[src]
impl Eq for NonZeroUsize[src]
impl From<NonZeroU16> for NonZeroUsize1.41.0[src]
Converts NonZeroU16 to NonZeroUsize losslessly.
fn from(small: NonZeroU16) -> NonZeroUsize[src]
impl From<NonZeroU8> for NonZeroUsize1.41.0[src]
Converts NonZeroU8 to NonZeroUsize losslessly.
fn from(small: NonZeroU8) -> NonZeroUsize[src]
impl From<NonZeroUsize> for usize1.31.0[src]
fn from(nonzero: NonZeroUsize) -> usize[src]
Converts a NonZeroUsize into an usize
impl FromStr for NonZeroUsize1.35.0[src]
type Err = ParseIntError
The 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]
__H: Hasher,
fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher, 1.3.0[src]
H: Hasher,
impl LowerHex for NonZeroUsize[src]
impl Octal for NonZeroUsize[src]
impl Ord for NonZeroUsize[src]
fn cmp(&self, other: &NonZeroUsize) -> Ordering[src]
#[must_use]fn max(self, other: Self) -> Self1.21.0[src]
#[must_use]fn min(self, other: Self) -> Self1.21.0[src]
#[must_use]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 UpperHex for NonZeroUsize[src]
Auto Trait Implementations
impl RefUnwindSafe for NonZeroUsize
impl Send for NonZeroUsize
impl Sync for NonZeroUsize
impl Unpin for NonZeroUsize
impl UnwindSafe for NonZeroUsize
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized, [src]
T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized, [src]
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized, [src]
T: ?Sized,
fn borrow_mut(&mut self) -> &mut T[src]
impl<T> From<T> for T[src]
impl<T, U> Into<U> for T where
U: From<T>, [src]
U: From<T>,
impl<T> ToOwned for T where
T: Clone, [src]
T: Clone,
type Owned = T
The 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]
T: Display + ?Sized,
impl<T, U> TryFrom<U> for T where
U: Into<T>, [src]
U: Into<T>,
type Error = Infallible
The 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]
U: TryFrom<T>,