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 LowerHex for NonZeroUsize[src]
impl Display for NonZeroUsize[src]
impl Clone for NonZeroUsize[src]
fn clone(&self) -> NonZeroUsize[src]
fn clone_from(&mut self, source: &Self)1.0.0[src]
Performs copy-assignment from source. Read more
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 Ord for NonZeroUsize[src]
fn cmp(&self, other: &NonZeroUsize) -> Ordering[src]
fn max(self, other: Self) -> Self1.21.0[src]
Compares and returns the maximum of two values. Read more
fn min(self, other: Self) -> Self1.21.0[src]
Compares and returns the minimum of two values. Read more
impl Binary for NonZeroUsize[src]
impl Eq for NonZeroUsize[src]
impl Debug for NonZeroUsize[src]
impl PartialEq<NonZeroUsize> for NonZeroUsize[src]
fn eq(&self, other: &NonZeroUsize) -> bool[src]
fn ne(&self, other: &NonZeroUsize) -> bool[src]
impl Copy for NonZeroUsize[src]
impl UpperHex for NonZeroUsize[src]
impl Octal for NonZeroUsize[src]
impl From<NonZeroUsize> for usize1.31.0[src]
fn from(nonzero: NonZeroUsize) -> usize[src]
impl Hash for NonZeroUsize[src]
Auto Trait Implementations
impl Send for NonZeroUsize
impl Sync for NonZeroUsize
Blanket Implementations
impl<T, U> TryFrom 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> From for T[src]
impl<T, U> TryInto for T where
U: TryFrom<T>, [src]
U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>[src]
impl<T, U> Into for T where
U: From<T>, [src]
U: From<T>,
impl<T> Borrow for T where
T: ?Sized, [src]
T: ?Sized,
impl<T> BorrowMut for T where
T: ?Sized, [src]
T: ?Sized,
ⓘImportant traits for &'_ mut Ifn borrow_mut(&mut self) -> &mut T[src]
ⓘImportant traits for &'_ mut I
impl<T> Any for T where
T: 'static + ?Sized, [src]
T: 'static + ?Sized,
impl<T> ToOwned for T where
T: Clone, [src]
T: Clone,
impl<T> ToString for T where
T: Display + ?Sized, [src]
T: Display + ?Sized,